HomeMy WebLinkAbout1.07 Improvements AgreementNorth Hangs Mine
Garfield County Land Use Change
Application
February 2023
Updated July 2023
By:
Western Slope Materials, Inc.
Represented by:
Contents
Introduction ................................................................................................................................ 1
Professional Qualifications ......................................................................................................... 5
Application Form ........................................................................................................................ 6
Ownership .................................................................................................................................. 7
Adjacent Property Owners and Mineral Owners and Lessees .................................................... 8
Fees ........................................................................................................................................... 9
Project Description ....................................................................................................................10
Vicinity Map ..............................................................................................................................19
Site Plan ...................................................................................................................................20
Grading and Drainage Plan .......................................................................................................21
Reclamation and Landscape Plan .............................................................................................24
Landscape Plan ........................................................................................................................26
Impact Analysis .........................................................................................................................27
Improvements Agreement .........................................................................................................33
Traffic Study ..............................................................................................................................34
Water Supply/Distribution Plan ..................................................................................................35
Wastewater Man./Treatment Plan .............................................................................................36
Floodplain Analysis ...................................................................................................................37
Article 7 Standards ....................................................................................................................38
Section 7-1001 Industrial Uses .................................................................................................44
Section 7-1002 Gravel Extraction ..............................................................................................46
Appendix 1 – Noise Analysis .....................................................................................................79
Appendix 2 – Environmental Impact Analysis ............................................................................80
Appendix 3 – Geologic Hazard Analysis....................................................................................81
Appendix 4 – CDRMS Application .............................................................................................83
Appendix 5 – SPCC Plan ..........................................................................................................84
Appendix 6 – Stormwater Management Plan ............................................................................85
Appendix 7 – Other Items .........................................................................................................86
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North Hangs Mine
February 2023 1
Introduction
The North Hangs Mine is a proposed sand and gravel operation located approximately 1 mile
west southwest of Silt, CO located along the Colorado River just north of Interstate 70. The
operation will excavate, process, and send offsite construction materials from a 72.8 acre permit
and affected are. Access will be from the existing County Road 346 connection for the property.
The owner of the land is North Hangs Ranch LLC. The operator and permittee is Western Slope
Materials LLC.
The current site condition is predominantly rangeland. The mined portion of the site will be
reclaimed to a groundwater lake and surrounding rangeland. Details of mining and reclamation
plans can be seen on the maps in Appendix 4.
The North Hangs Mine will operate as a new construction materials source for Western Slope
Materials as they wind down operations at their Grand River Park Pit. The Grand River Park Pit
is currently operating southeast of the North Hangs property, on the South side of I-70. With
North Hangs, Western Slope Materials will continue to serve the local construction market with
quality materials for years to come, without increasing impacts to the local environment or public
infrastructure.
1. Plans and Goals
Western Slope Materials is committed to beginning impact mitigation and minimization efforts as
soon as possible when all conditional approvals for this gravel mine are in place. By beginning
mitigation work several years before the commencement of mining, items such as landscaping,
specifically tree plantings and infilling, will be more mature and effective when mining begins.
With approval of this SUP, mitigation and other pre-mining activities will be able to move
forward, a benefit to both the operator and the community at large.
Western Slope Materials has developed mining and reclamation plans that will see the North
Hangs Mine operate with minimum impact on the surrounding community throughout its life.
These plans include phased mining, concurrent reclamation, wetlands development, screening
and berms, and operational best management practices.
The North Hangs Mine will operate in multiple mining phases that allows for concurrent
reclamation. Mining will consist of excavating raw material to supply Western Slope Materials
needs in the local construction market. Reclamation will see the site become a lake surrounded
by wetland and riparian fields. These stages can be visualized in Figure 1 and 2.
North Hangs Mine
February 2023 2
North Hangs Mine
February 2023 3
Figure 1. North Hangs Mine – Mining
North Hangs Mine
February 2023 4
Figure 2. North Hangs Mine – Reclamation
North Hangs Mine
February 2023 5
Professional Qualifications
This report was produced by Ben Langenfeld (P.E.# 0047151), a Professional Engineer
registered in the State of Colorado.
North Hangs Mine
February 2023 6
Application Form
The Garfield County ‘Land Use Change Permit Application Form’ is included in this application
package. The pre application summary is also attached.
Community Development Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
(970) 945-8212
www.garfield-county.com
LAND USE CHANGE PERMIT
APPLICATION FORM
TYPE OF APPLICATION
Administrative Review Development in 100-Year Floodplain
Limited Impact Review Development in 100-Year Floodplain Variance
Major Impact Review Code Text Amendment
Amendments to an Approved LUCP
LIR MIR SUP
Rezoning
Zone District PUD PUD Amendment
Minor Temporary Housing Facility Administrative Interpretation
Vacation of a County Road/Public ROW Appeal of Administrative Interpretation
Location and Extent Review Areas and Activities of State Interest
Comprehensive Plan Amendment Accommodation Pursuant to Fair Housing Act
Pipeline Development Variance
Time Extension (also check type of original application)
INVOLVED PARTIES
Owner/Applicant
Name: ________________________________________________ Phone: (______)_________________
Mailing Address: ______________________________________________________________________
City: _______________________________________ State: _______ Zip Code: ____________________
E-mail:_______________________________________________________________________________
Representative (Authorization Required)
Name: ________________________________________________ Phone: (______)_________________
Mailing Address: ______________________________________________________________________
City: _______________________________________ State: _______ Zip Code: ____________________
E-mail:_______________________________________________________________________________
PROJECT NAME AND LOCATION
Project Name:
_____________________________________________________________________________________
Assessor’s Parcel Number: ___ ___ ___ ___ - ___ ___ ___ - ___ ___ - ___ ___ ___
Physical/Street Address: ________________________________________________________________
Legal Description: ______________________________________________________________________
_____________________________________________________________________________________
Zone District: ___________________________________ Property Size (acres): __________________
2179 092 00 106
North Hangs Mine
February 2023 7
Ownership
The owner of the land to be mined in North Hangs ranch LLC. A deed showing the owner’s fee
title interest in the land for which a Land Use Change is proposed is included in this application
package.
CERTIFICATION OF MINERAL OWNER RESEARCH
This form is to be completed and submitted with any application for a Land Use Change Permit.
Mineral interests may be severed from surface right interests in real property. C.R.S. § 24-65.5-101, et seq,
requires notification to mineral owners when a landowner applies for an application for development from a
local government. As such, the landowner must research the current owners of mineral interests for the
property.
The Garfield County Land Use and Development Code of 2013 (“LUDC”) Section 4-101(E)(1)(b)(4) requires
written notice to owners of mineral interests in the subject property in accordance with C.R.S. § 24-65.5-101,
et seq, “as such owners can be identified through the records in the office of the Clerk and Recorder or
Assessor, or through other means.” This form is proof of applicant’s compliance with the Colorado Revised
Statutes and the LUDC.
The undersigned applicant certifies that mineral owners have been researched for the subject property as
required pursuant to C.R.S. § 24-65.5-101, et seq, and Section 4-101 (E)(1)(b)(4) of the Garfield County Land
Use and Development Code, as amended. As a result of that research, the undersigned applicant certifies
the following (Please initial on the blank line next to the statement that accurately reflects the result of
research):
I own the entire mineral estate relative to the subject property; or
Minerals are owned by the parties listed below
The names and addresses of any and all mineral owners identified are provided below (attach additional pages
as necessary):
Name of Mineral Owner Mailing Address of Mineral Owner
I acknowledge I reviewed C.R.S. § 24-65.5-101, et seq, and I am in compliance with said statue and the
LUDC.
_____________________________________________ _________________________________
Applicant’s Signature Date
02/28/23
See Attached Listing
x
RESEARCH METHODOLOGY
I was engaged to research the mineral ownership and any lessees of said minerals in Government Lots 3
& 4 and the West Half of the Southwest Quarter of Section 9, Township 6 South Range 92 West of the
6th Principal Meridian, near Silt CO, Garfield County. I conducted a thorough research project of the
chain of title, from patent to present. There are two patents for the subject lands, said patents conveyed
the surface and mineral interests to the patentees. The deed recorded at Reception Number 166614
reserved one-quarter (1/4) of the oil, gas mineral interests to the Grantor, Barney Wright. No other
reservations of the subject minerals occurred until Gypsum Ranch LLC conveyed the subject surface
lands to North Hangs Ranch LLC, through recordation of the Warranty Deed at Reception Number
932600. This deed includes all sand, gravel and aggregates, however reserves and excepts “all of
Grantor’s right, title and interest in all oil and gas in, under and that may be produced from the
property.” Hence, Gypsum Ranch owns three-quarters (3/4) of the mineral rights. The mineral interests
of Barney Wright reserved in the aforementioned deed have passed down through numerous
generations, a list of current owners is provided herewith. All addresses provided below were found in
recorded documents in the Garfield County Clerk and Recorder’s Office and are the most current
available. This search is effective through 1/14/2022. This research was updated through 7/01/2022
and updated again through 8/01/2022. This search has again been updated. No changes in ownership
or leasing were found, through 2/17/2023.
Mineral Rights Owners and Mailing Addresses:
Gypsum Ranch LLC
818 Colorado Avenue
Glenwood Springs CO 81601
Shirley Jones
8073 Hemingway
San Diego CA 92102
Barbara L Hardie
2187 E Gauthier Road #330
Lake Charles LA 70607
Fossil Creek Land Company
PO Box 485
Mustang OK 73064
Kathleen Lambert
3817 Selkirk Road
Sandpoint ID 83864
Daniel Nichols
PO Box 1666
Orange CA 92856
Betty Jean Lindley
1065 Pine Drive
Mohave Valley AZ 86440
McClung Trust
4200 Summers Lane #58
Klamath Falls OR 97603
Carol Sanger
1507 Oro Grande
Yuba City CA 95993
Riley W McClung
10550 County Road 319
Rifle CO 81650
Don McClung
181 Willow Circle Drive
Parachute CO 81635
Karen McClung
172 South Ridge Court
Parachute CO 81635
Jerry L Bussell
Gene A Bussell
6036 Bayhill Drive
Farmington NM 87402
TEP Rocky Mountain LLC
3050 Post Oak Blvd Suite 1500
Houston TX 77056
Elmer Blackmore
650 Birch Court
Rifle CO 81650
Colleen Damrow
4278 Round Lake Road
Klamath Falls OR 97601
Kenneth R Kelley
7703 S Elm Court
Littleton CO 80122
Kimmer Lee Jepson
553 Rio Borde Court
Grand Junction CO 81507
Delma Jean Cain
1040 E Osborn #601
Phoenix AZ 85014
Victoria E Glover
Lee Poteet
4035 Valley Drive
Pueblo CO 81008
Garry Lee Wright
20285 County Road 8
Meeker CO 81641
Mineral Rights Lessees:
Williams Production RMT (An Internet search indicates this is the current mailing address)
1515 Arapahoe Street Tower 3
Suite 1000
Denver CO 80202
Above Lease Assigned to:
CR Pool LLC
PO Drawer 790
Glenwood Springs CO 81602
Antero Resources Piceance Corporation (See Below)
1625 17th Street
Denver CO 80202
An Internet Search finds Antero Resources at the following address:
1615 Wynkoop Street
Denver CO 80202
North Hangs Mine
February 2023 8
Adjacent Property Owners and Mineral Owners and
Lessees
A list and a map of real property within a 200-foot radius of the subject property is given below.
Parcel # Owner
217908100194 ASPIRI ENTERPRISES LLC
2125 1ST AVENUE APARTMENT 2704
SEATTLE WA 98121
217909200085 STATE OF COLORADO DIVISION OF WILDLIFE
6060 BROADWAY
DENVER CO 80216-1029
217908100527 SHIDELEROSA LLLP
1411 COUNTY ROAD 316
SILT CO 81652
No Parcel Number Interstate 70
Colorado Department of Transportation
2829 W. Howard Pl.
Denver, CO 80204
A list of mineral estate owners in the Subject site is given below:
Parcel # Owner
217909200106 North Hangs Ranch LLC 950 Smile Way York Pa 17404
North Hangs Mine
February 2023 9
Fees
A certified check is enclosed for this application.
PAYMENT AGREEMENT FORM
GARFIELD COUNTY (“COUNTY”) and Property Owner (“APPLICANT”) ______ ____
______________________________________________________________________ agree as follows:
1. The Applicant has submitted to the County an application for the following Project:
__________________.
2. The Applicant understands and agrees that Garfield County Resolution No. 2014-60, as
amended, establishes a fee schedule for each type application, and the guidelines for the
administration of the fee structure.
3. The Applicant and the County agree that because of the size, nature or scope of the
proposed project, it is not possible at this time to ascertain the full extent of the costs
involved in processing the application. The Applicant agrees to make payment of the Base
Fee, established for the Project, and to thereafter permit additional costs to be billed to the
Applicant. The Applicant agrees to make additional payments upon notification by the
County, when they are necessary, as costs are incurred.
4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of
consulting service determined necessary by the Board of County Commissioners for the
consideration of an application or additional County staff time or expense not covered by
the Base Fee. If actual recorded costs exceed the initial Base Fee, the Applicant shall pay
additional billings to the County to reimburse the County for the processing of the Project.
The Applicant acknowledges that all billing shall be paid prior to the final consideration by
the County of any Land Use Change or Division of Land.
I hereby agree to pay all fees related to this application:
Billing Contact Person:_____________________________________ Phone: (_____)___________________
Billing Contact Address: ___________________________________________________________________
City: ______________________________________________ State: _______ Zip Code: ________________
Billing Contact Email: _____________________________________________________________________
Printed Name of Person Authorized to Sign: ___________________________________________________
______ ________________________________
(Signature) (Date)
North Hangs Mine
February 2023 10
Project Description
Western Slope Materials LLC proposes to mine the North Hangs Mine gravel deposit to support
its construction materials activities in the Silt, CO area. Material will be mined, crushed,
screened and washed at the North Hangs Mine before being transported offsite for further use.
Material from this operation will be used in a variety of necessary uses in the area including
infrastructure projects, road and highway maintenance, the production of readymix concrete and
asphalt at off-site facilities, residential, and commercial construction. There is sufficient topsoil
and overburden onsite to successfully reclaim the site to its final condition of a lake with
rangeland slopes. No asphalt manufacturing will take place onsite.
Western Slope Materials intends to use the North Hangs Mine to support its ongoing presence
in the community. To that end, it has designed the operation to incorporate upfront landscaping
work, wetlands development, and final reclamation into a lake and associated wetlands. This
Project Description will outline the need for the operation, provide detailed information about the
project including timelines, schedule of operations, employee presence, project size, and
explanation of all functional aspect of the proposed development including mining and
reclamation plans.
Table 1. Proposed approximate timeline of approvals and operational events
Date Pending Action Stage
2023 SUP Approval/DRMS approval Mining
2024 Landscaping & Access installed Mining
2024 Augmentation Plan secured Mining
2024 Wetlands plan approval from USACOE Mining
Between 2025 and 2030 Operations beginning Mining
Between 2035 and 2040 Mining operations finish. Final reclamation commences. Mining
Between 2036 and 2041 Reclamation of mining areas complete. Reclaimed
Between 2037and 2042 Final reclamation of all disturbance completer Reclaimed
Between 2039 and 2044 Reclamation is determined complete by CDRMS. Site is
releases. Reclaimed
*All dates are approximate timeframes and subject to change due to market demand.
2. Statement of Need
Western Slope Materials (WSM) has provided the area with the highest quality aggregates for
over a decade. Locating, managing and conserving sand and gravel reserves in Garfield
County is of the highest priority for local producers and the County alike as it is a limited
resource. As the Colorado River valley has become developed and populations have grown,
opportunities to secure gravel reserves have become increasingly fewer. After years of
North Hangs Mine
February 2023 11
research and study, Western Slope Materials has concluded that only a handful of such sites
actually exist. With typically long permitting durations, WSM recognizes the need to start the
process well in advance of the actual mining activities occurring. The North Hangs site provides
an excellent resource that can be utilized to support projects, maintenance and development
while being responsibly managed for years to come. An ancillary benefit to a site like this will be
the opportunity to create future water storage if future approvals are able to be obtained.
3. Mining Stage
A phased mining plan will be used to minimize the cumulative impacts of the mining operation.
Concurrent reclamation will facilitate the healthy development of expanded and enhanced
wetlands on the property while mining takes place. Berms and buffers will minimize the offsite
impacts of the operation. Figure 2 shows a render of what the site will look like during mining.
The start of operations at the North Hangs Mine is currently scheduled to occur in 2025-2026.
There are items that WSM will ultimately need to have in place, including a water augmentation
plan and an approved wetlands plan from the Army Corps of Engineers that will require
significant time to develop. These items however, are not required until specific activities in the
mining timeline occur. For example, a wetlands mitigation plan through the U.S. Army Corps of
Engineers is not required until wetlands are disturbed, an event that will occur with the
beginning of Area B several years into mining. Similarly, the water augmentation plan will not be
required until groundwater is exposed during mining, which will occur early in mining, but not for
several years from the time of this application. Conditional approval of this SUP by the County
will allow early development work to be conducted onsite. This early development work will
maximize the effectiveness of impact mitigation efforts over the life of the mine.
No wetlands will be disturbed without an approved mitigation plan and/or permit from the
USACOE. No groundwater will be exposed without an augmentation plan in place.
Mining & Reclamation Plans
The site of the proposed North Hangs Mine is 72.8 acres and is currently rangeland/shrubland
(see Map C-1). The Bernudy Ditch (WDID 4500524)1 is located within the permit area. The
North Hangs Mine will be accessed from County Road 346. Mining will take place in two
principal phases. The first phase will mine around the Bernudy Ditch and wetlands onsite. The
second phase will mine out the ditch path and associated wetlands. Following mining of Area A,
wetlands will be established as part of reclamation that are greater in total area than the
wetlands to be disturbed by mining. Also, the Bernudy Ditch will be rerouted via a buried pipe
around the mining area. Maps C-1 shows the mining plan. A 20-ft wide maintenance easement
will be recorded upon installation of the pipe reroute. Map G-2 shows the pipe reroute details.
1 https://dwr.state.co.us/Tools/Structures/4500524
North Hangs Mine
February 2023 12
Prior to beginning activities on the site, the boundaries of the affected area will be clearly
marked. Signs and markers will be posted at the mine entrance listing the name of the Operator,
Western Slope Materials, and the operation name, “North Hangs Mine”; a statement that a
reclamation permit for the operation has been issued by the Colorado Mined Land Reclamation
Board; and the DRMS permit number. The current access to the property will be used for mining
(Maps C-1 & C-2). Internal roads and ramps will be used throughout the life of the mining
operation as needed and will all be reclaimed. Map C-2 shows the total mining extents. Map C-4
shows a snapshot of mining and reclamation activity as it progresses.
Topsoil and overburden will be stripped at North Hangs Mine and placed in stockpiles and
berms. This stripping will take place in advance of mining of areas but is not anticipated to
happen all at once. Map C-3 shows the topsoil stripping in advance of mining in the cross
sections. Berms will be installed at the start of operations on the site as part of stormwater
controls (Maps C-2). Further details on the berms can be seen on Map G-1.
Topsoil that is stripped and not required for the construction of the berms will be immediately
placed as part of contemporaneous reclamation, stockpiled on-site in the topsoil storage area,
or shipped offsite. Temporary stockpiles of overburden or topsoil required for reclamation will
typically be 20 feet in height. Temporary stockpiles will be located in the designated area shown
on Map C-2. Overburden present on site will be stripped during mining and either placed directly
on mined out ground as part of reclamation, stored in the stockpile area, or be sold as fill.
Mining to final slopes and the direct placement of overburden onto reclamation slopes will
reduce the need to stockpile overburden material and shorten the time that it will take to reclaim
the mine. Details on topsoil and overburden quantities and material balance can be found in the
CDRMS permit exhibits attached as Appendix 4.
The groundwater table is roughly seven feet below ground level based on site investigations.
Since groundwater will be exposed/encountered during mining, the entire pit will be dewatered
using a pump. Details regarding this dewatering can be found in CDRMS Exhibit G in Appendix
4.
Throughout the mine life the minimum setbacks shown on Map C-2 will be maintained. All
mining will be within the 100-year floodplain, but no permanent fill will take place in this area. A
floodplain impact analysis has been conducted and can be found in this application with the
Floodplain Development Permit. Storm water control berms and stockpiles will be present
during mining but removed during reclamation. Additionally, the excavation of topsoil and
overburden from the site will create storage volume for storm and flood events onsite. See Map
G-1 and Exhibit G of the CDRMS application in Appendix 4 for more information on surface
water management.
Further details of mining and reclamation activities can be found in the CDRMS permit
application in Appendix 4.
North Hangs Mine
February 2023 13
Wetlands
Western Slope Materials commissioned a wetlands survey of the site conducted by
Environmental Solutions Inc (ESI) prior to any disturbance to determine the extent of wetlands
that are present onsite. This survey is attached to the CDRMS application Exhibit J. Figure 4.
shows the extent of wetlands as mapped during a survey conducted by Environmental Solutions
Inc, see the attached ‘Wetlands Delineation Report’, found in Appendix 7.
Area A will be mined in such a manner as to leave a setback of at least 35 feet from all existing
wetlands. Prior to the initiation of Area B mining, Area A will be back-filled and allowed to revert
to wetlands (see Map F-1). These backfilled portions of Phase 1 will be intentionally developed
as wetlands to mitigate anticipated future wetland disturbances onsite. This new wetland area
will be 5.9 acres in size, larger than the 3.8 total acres of wetlands that are currently cataloged
as existing on the site. By creating a wetland that is larger than the total amount of wetlands
currently on the site, WSM is assuring that mining that disturbs wetlands will not have an overall
deleterious effect on the wetlands on the site. It is in this manner that the overall area of
wetlands contained within the affected parcel will either remain the same or will increase in size
as mining progresses. The value of the property as a wildlife area will be greatly enhanced with
this increase in wetland, groundwater lake and edge habitat (see Wildlife/Vegetation below). No
wetland disturbance will take place prior to USACOE approval of a mitigation plan.
Figure 3. Existing 3.8 acres of wetlands as determined during site survey.
Figure 5. indicates the extent of wetlands that will exist after all reclamation is complete. The
wetlands in the southeast section of the site will be completed prior to the start of Area B mining.
This wetland will encompass 5.9 acres.
North Hangs Mine
February 2023 14
Figure 4. Final extent of proposed wetlands after reclamation is complete.
Figure 5 gives the existing view that an automobile driver traveling eastbound on I-70 has of the
wetland area on the southeastern portion of the permit area. During Area A mining, this area of
the site, excluding the existing wetlands, will be mined first. Prior to the start of mining in Area B,
this area will be backfilled and allowed to revert to wetlands. The total area that will be allowed
to convert to wetlands prior to the start of Area B is 5.9 acres, more than the 0.23 acres of
wetlands currently existing in this area, and more than the total of 3.8 acres of wetlands mapped
on the entire site by Environmental Solutions Inc. By completing the reclamation of this section
of the site prior to the start of Area B, WSM will be achieving two goals: 1) reducing the visual
impacts of mining to the I-70 travel corridor and 2) mitigating the effects of mining on the site’s
wetlands inventory.
North Hangs Mine
February 2023 15
Figure 5. View of existing wetlands captured from perspective of automobile driver
looking northeast from eastbound I-70. This view will remain essentially unchanged after
this area is mined and reclaimed.
Prior to disturbing any wetlands onsite, the applicant will secure any applicable US Army Corps
of Engineers permits. Conditional approval of this SUP and Mitigation Plan will enable WSM to
obtain the required US Army Corps of Engineers permits. Western Slope Materials plans to
have constructed and enlarged the total area of wetlands on the site before any wetlands are
disturbed.
Water Consumption
Water for the operation will be purchased as needed. Exposure of groundwater and dewatering
of the mine will require a substitute water supply plan (SWSP), augmentation plan, and a gravel
well permit.
Water consumption for the North Hangs Mine will fall into five main categories.
• Control Dust on the Haul Roads and Excavation Areas
• Control Dust for Crushing and Screening Plant Operations
North Hangs Mine
February 2023 16
• Wash Plant Operations
• Loss of groundwater to evaporation
Due to the fact that the majority of mining will take place below the water table, material
excavated from the mine will be inherently wet and thus pose a low risk of generating excessive
dust. Water application for dust control on haul roads and excavation areas will take place as
needed. Active stockpiles and others may require additional watering to ensure material stays
wet. Additional watering may be needed during very dry windy conditions during mining
operations. The facility manager will determine when and where this is needed during
operations. Long term topsoil stockpiles will be vegetated to minimize water consumption for
dust control as well as to prevent soil loss from said stockpiles.
The crushing/screening plant uses water to control dust with water sprays at the entrance and
on the screen deck. It is anticipated that the material will not require a large amount of water to
control dust during processing due to its inherently wet nature.
The wash plant will be used to remove fines from the material. This will produce fines in the
bottom of the wash ponds adjacent to the plant. These ponds will be inspected monthly for
capacity. Fines will need to be removed periodically from the wash ponds. The frequency of this
clean out will depend on production rates. Fines removed from the wash ponds via cleanout will
either be sold as a product or mixed in with the backfill in the pits. These fines will never be
placed outside of storm water controls.
An augmentation plan will be required to offset the evaporative losses from the groundwater
lakes created as part of the final use of the mine. Until such an augmentation plan is in place
and approved by the State of Colorado, no groundwater exposure will take place. WSM
proposes to have the SUP and the Mitigation Plan conditionally approved prior to the finalization
of an augmentation plan, which will be in place before the start of mining (see timeline Table 1).
Similarly, the CDRMS permit will be limited to above groundwater excavation until an
augmentation plan is approved.
Water augmentation plans in the State of Colorado require approval from the Colorado Division
of Water Resources and Colorado water courts. This process involves months of review and
public comment in most cases. Furthermore, the water requirements for augmentation are
dependent on approved mining and reclamation plans from State and Local permits. Therefore,
water augmentation plans are typically pursued following the issuance of State reclamation
permits and Local land use approval. Western Slope Materials will apply for its water
augmentation plan once the Garfield County use permit and Colorado Division of Reclamation,
Mining, and Safety permit are issued. To facilitate conditional approval of the Garfield County
use permit, a will-serve letter from West Divide water conservancy district is included to
demonstrate that water is available to meet North Hangs augmentation needs when the time
comes.
North Hangs Mine
February 2023 17
Timetable
An approximate maximum timetable for the North Hangs Mine operation is shown on Table 2.
This timeline will allow Western Slope Materials to satisfy the need for construction material and
services in the Colorado River valley and surrounding community.
Table 2. Mining Timetable
Years Activity
1 Installation of access, development of processing area, and construction of stormwater berms.
Installation of landscaping elements.
1-3 Area A mining
3-5 Reclamation of Area A and associated wetland creation.
5-7 Bernudy Ditch reroute via pipe.
10-20 Area B-F mining and reclamation
Over the life of the mine, a total of 1.5 million tons of material will be extracted at a rate of
roughly 100,000 tons per year. This will result a mine life of approximately 15 years, assuming
consistent market conditions. Final reclamation will the final lake configuration shown on Map F-
1.
4. Schedule of Operations
Hours of operation at the North Hangs Mine will be limited to Monday thru Saturday, 7am to 7
pm. Operations may be limited during winter months due to freezing conditions and market
demands. Only emergency maintenance will take place at night. Lighting to support such
emergency work will be downcast and limited.
5. Number of Employees
The operation will employ approximately five full time employees. This number may vary based
on seasonal demands for products.
6. Equipment and Facilities
The anticipated equipment and facilities that will be used at the North Hangs Mine are listed in
Table 3. All facilities will be portable, with the exception of the truck scale.
Table 3. Typical Onsite Equipment and Facilities
Equipment Type Facility
Excavator Office trailer
North Hangs Mine
February 2023 18
Bulldozer Fuel farm
Water Truck Crusher/screen
On-highway Dump Truck Wash plant
Road Grader Truck scale
Loader Portable toilets
Fuel Tank
Mobile Pump
North Hangs Mine
February 2023 19
Vicinity Map
An 8-inch by 11-inch Vicinity Map locating the parcel in the County is included with this
application package. The Vicinity Map indicates the boundaries of the subject property and all
property within a three-mile radius of the site.
North Hangs Mine
February 2023 20
Site Plan
Maps in the CDRMS application in Appendix 4 serve as the site plan for this application. This
site plan includes:
1. Legal description
2. Boundary Lines
3. Topographic Contours
4. Significant on-site features (drainage ways, wetlands, etc.)
5. Existing and proposed roads
6. Existing roadways
7. Users and grantees of existing and proposed easements and rights of way
8. Area of parcel
9. Zone district (it is ‘Rural’)
10. Location and dimension of all existing and proposed structures, with distance to
property lines
11. Elevation drawings (Cross sections) with existing and finished grades
12. Location and size of signs for the purpose of identification etc.
North Hangs Mine
February 2023 21
Grading and Drainage Plan
The North Hangs Mine affected area is located adjacent to the Colorado River. The disturbance
area of the site will be at least 100 feet from the Colorado River, southwest of the river.
Groundwater is roughly four feet below the natural grade and is the alluvial aquifer of the
Colorado River. The 100-YR FEMA floodplain encompasses the entire mining area. There is no
mapped floodway within the property. Temporary stormwater control berms, topsoil, and
overburden stockpiles will exist during mining, but will be removed for reclamation.
Exhibit G of the CDRMS application in Appendix 4 contains all hydrologic calculations.
Maps showing the applicable information required by the Garfield Land Use and Development
Code for Grading and Drainage Plans are listed in Table 4.
Table 4. Grading, Drainage, and Hydrology Maps
Grading Plan Maps Drainage & Hydrology Plan Maps
C-2 Mining Plan G-1 Hydrology Map
C-3 Cross Sections G-2 Ditch Reroute
C-4 Cross Sections
F-1 Reclamation Plan
All slopes greater than 20% are identified on the Grading Plan maps listed above.
1. Construction Schedule
The schedule of steps to bring the North Hangs Mine online are outlined below in Table 5. For
the purpose of this land use application, construction is considered to cover the startup period of
mining operations only.
Table 5. North Hangs Startup Construction Schedule
Days Activity
0-5 Stake and mark all boundaries
5-35 Strip initial topsoil from processing area and build berms. Install temporary erosion control
measures around berms. Seed all long term berms and stockpiles.
35-60 Install permanent site access. Install temporary erosion control measures along perimeter.
60-100 Vegetation development on all applicable areas.
100-105 Removal of temporary erosion control measures as vegetated areas reach 80% cover.
2. Permanent Stabilization
Permanent stabilization will be accomplished early in the operation life on long term berms or
stockpiles via vegetation with the seed mix within Exhibit E of the CDRMS application in
Appendix 4. The processing area and active mining pits will maintain internal drainage using
slopes and stormwater berms until they are reclaimed. All portions of the site will be reclaimed
North Hangs Mine
February 2023 22
according to Exhibit E of the CDRMS application in Appendix 4, including vegetation measures
identified therein.
3. Erosion and Sediment Control Measures - Estimate Cost
Temporary soil erosion control measures include the construction, maintenance, and removal of
stormwater berms. Temporary seeding of stormwater berms. Temporary seeding of stockpiles
as needed. Occasional watering for dust suppression as needed. Erosion control measures can
be seen on Map G-1, which is attached to this application. The total cost of these measures is
estimated to be $ 25,000.
4. Neighboring Areas
Neighboring areas of the North Hangs Mine are shown in Figure 6. N. Zoning for neighboring
parcels is shown, with the North Hangs property highlighted in red. All surrounding zoning is
Rural.
Figure 6. North Hangs and Neighboring Areas
N
Irrigated
Pasture
Rangeland and
Irrigated Pasture Rangeland
(CPW)
Active Mine
North Hangs Mine
February 2023 23
5. Stormwater Management Plan
A stormwater management plan has been developed for North Hangs, in accordance with
CDPHE guidance for such plans. The SWMP has not been submitted to CDPHE as no
discharge permit has been applied for yet. Upon approval of this land use change permit,
permits such as the CDPHE discharge permit will secured in advance of operations.
A copy of the proposed SWMP can be found in Appendix 6.
North Hangs Mine
February 2023 24
Reclamation Plan
This section describes the plans and processes involved in reclaiming and landscaping the site
in order to transform it to its ultimate post-mining use as rangeland and a groundwater lake. The
landscape plans are scaled at 1 inch to 20 feet and are as shown on Map F-1. Reclamation will
occur contemporaneously throughout mining. Current use of the permit area is that of a
rangeland. Final use of the permit area is proposed to be rangeland with a groundwater lake for
the benefit of local wildlife.
Details on reclamation procedures for the site can be found in Exhibit E of the CDRMS
application in Appendix 4.
6. Seeding Plan
Details regarding the seed mix, mulching, and areas to be seeded can be found in Exhibit E of
the CDRMS application in Appendix 4.
7. Topsoil Handling Plan
Details regarding the stripping, handling, storage, and replacement of topsoil can be found in
Exhibit E of the CDRMS application in Appendix 4.
8. Weed Management Plan
All disturbance proposed for the North Hangs Mine is for the long-term function of the site.
Therefore, a weed management plan is not required. Nevertheless, a weed control plan can be
found in Exhibit E of the CDRMS application in Appendix 4 as it is required by CDRMS.
9. Revegetation Security
A bond for reclamation will be in place for North Hangs Mine in accordance with state law, prior
to any site disturbance. This bond will include revegetation costs as calculated by the CDRMS.
No additional Garfield County bond is necessary.
10. Hydraulic Calculations
Details regarding the hydraulic calculations for the North Hangs Mine can be found in Exhibit G
of the CDRMS application in Appendix 4.
11. Maintenance Requirements
Maintenance of all proposed best management practices (BMPs) and stormwater control
measures (SCMs) will take place in the due course of the mining operation at North Hangs.
North Hangs Mine
February 2023 25
Access to all areas requiring maintenance will be achieved via the primary site access. Western
Slope Materials, in accordance with the necessary state permits and agencies regulating water
discharge and mining, will be responsible for maintaining all BMPs and SCMs at North Hangs.
12. Spill Prevention and Countermeasures Plan
A Spill Prevention and Countermeasure Plan (SPCC Plan), prepared under the supervision of a
Colorado licensed professional engineer, has been developed for North Hangs. It is attached in
Appendix 5.
North Hangs Mine
February 2023 26
Landscape Plan
As the North Hangs Mine is an industrial use, a landscape plan is not required according to
Section 7-303 of the Garfield County LDC. Reclamation and revegetation plans can be found in
Exhibit E of the CDRMS permit application attached in Appendix 4.
North Hangs Mine
February 2023 27
Impact Analysis
Sections 7-1002 and 7-1003 of the Garfield County Land Use and Development Code (Code)
address mitigation efforts required for permitted gravel mining operations in Garfield County.
Garfield County requires adherence to Colorado State Statutes (CRS) §25-12, which
establishes statewide standards for noise level limits for various time periods and areas.
1. General Impact Mitigation
All impacts discussed in this section are primarily mitigated by two factors: 1) the inherent
topographical differences between the mining operations onsite and 2) the surrounding land and
groves of trees along the Colorado River that will be maintained. All mining activities will take
place in an area of the site that sits below the existing grade, with the exception of topsoil
stripping and initial stockpiling. Processing will occur several feet below ground level to reduce
noise propagation. Topsoil stripping will be conducted in short term periods of the year, typically
in the early spring or late fall. Trees will be planted to in-fill the existing vegetation along the
Colorado River and along the south side of processing and stockpiling. These trees will mitigate
the visual and noise impacts of the operation to the Town of Silt, Colorado and the I-70 corridor.
Note that any reference to ‘Exhibits’ or ‘Maps’ refers to Exhibits and Maps contained within the
attached Colorado Division of Reclamation, Mining, and Safety (CDRMS) application
components for the North Hangs Mine unless specifically stated otherwise.
2. Adjacent Land Use
The proposed Land Use Change would allow for the development of a gravel mine at the
location. This use is consistent with the industrial/commercial aspect of adjacent land including
an existing gravel mine 1000 feet southeast of the proposed North Hangs Mine and the I-70
corridor along the southern boundary of the property. To the west is agricultural land used as
irrigated pasture for cattle. To the north is the Colorado River, with Colorado Parks and Wildlife
open space across the river to the northeast. Across the river to the northwest is agricultural
land consisting of rangeland and a single residence.
3. Site Features
Map C-1 of the CDRMS permit application in Appendix 4 shows the site features including
floodplain area, wetlands, water pathways, ditches, topography, vegetative cover, and more.
4. Soil Characteristics
A soil report was generated using the United States Department of Agriculture’s NRCS Web
Soil Survey (WSS) and is included in the CDRMS permit application in Appendix 4 as part of
Exhibit I. The WSS provides soil data and information produced by the National Cooperative
North Hangs Mine
February 2023 28
Soil Survey. The majority of the site (89.6%) is split between three soil types, Wann,
Halaquepts, and Torrifluvents (see Map C-1). Each of these primary soil types are described on
the following pages.
Suitability for Reclamation and Landscaping
All three soil types provide an average of at least 12 inches of suitable material for revegetation.
All three soils are listed as class VII without irrigation. Class VII are not suitable for cultivation
and are restricted to grazing by domestic animals or wildlife; all are listed as climatically limited
soils.
Soil Type Descriptions
Wann sandy loam, 1 to 3 percent slopes
Map Unit Setting
National map unit symbol: jnzc
Elevation: 5,000 to 6,500 feet
Farmland classification: Prime farmland if irrigated and reclaimed of excess salts and sodium
Map Unit Composition
Wann and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Wann
Setting
Landform:Terraces, valley floors
Landform position (three-dimensional):Tread
Down-slope shape: Linear, convex
Across-slope shape: Linear, convex
Parent material: Alluvium derived from sandstone and shale
Typical profile
H1 - 0 to 8 inches: sandy loam
H2 - 8 to 60 inches: fine sandy loam, sandy loam, coarse sandy loam
H2 - 8 to 60 inches:
H2 - 8 to 60 inches:
Properties and qualities
Slope:1 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr)
Depth to water table: About 0 inches
Frequency of flooding: OccasionalNone
Frequency of ponding: None
Calcium carbonate, maximum content:10 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water capacity: Very high (about 26.3 inches)
Interpretive groups
Land capability classification (irrigated): 4w
Land capability classification (nonirrigated): 6w
Hydrologic Soil Group: A/D
Ecological site: R048AY265CO - Salt Meadow
Hydric soil rating: Yes
Custom Soil Resource Report 18
Minor Components
North Hangs Mine
February 2023 29
Torrifluvents
Percent of map unit:5 percent
Hydric soil rating: No
Kim
Percent of map unit:5 percent
Hydric soil rating: No
Arvada
Percent of map unit:5 percent
Hydric soil rating: No
Halaquepts, nearly level
Map Unit Setting
National map unit symbol: jnxr
Elevation: 5,400 to 7,400 feet
Frost-free period: 101 to 135 days
Farmland classification: Not prime farmland
Map Unit Composition
Halaquepts, nearly level, and similar soils:85 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Halaquepts, Nearly Level
Setting
Landform:Terraces, fans, valleys
Landform position (three-dimensional):Tread
Down-slope shape: Convex, linear
Across-slope shape: Convex, linear
Parent material: Alluvium
Typical profile
H1 - 0 to 8 inches: clay loam
H2 - 8 to 24 inches: loam
H3 - 24 to 60 inches: stratified very gravelly cobbly sand
Properties and qualities
Slope:0 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table: About 0 inches
Frequency of flooding: Occasional None
Frequency of ponding: None
Calcium carbonate, maximum content:10 percent
Gypsum, maximum content: 5 percent
Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhos/cm)
Sodium adsorption ratio, maximum:30.0
Available water capacity: Low (about 3.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 6w
Hydrologic Soil Group: C/D
Hydric soil rating: Yes
Torrifluvents, nearly level
Map Unit Setting
National map unit symbol: jnz3
Custom Soil Resource Report 16
North Hangs Mine
February 2023 30
Elevation: 5,000 to 7,000 feet
Mean annual precipitation: 12 to 15 inches
Mean annual air temperature: 46 to 48 degrees F
Frost-free period: 90 to 120 days
Farmland classification: Not prime farmland
Map Unit Composition
Torrifluvents and similar soils:85 percent
Minor components:15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Torrifluvents
Setting
Landform: Distributaries, rivers, flood plains
Down-slope shape: Linear, convex
Across-slope shape: Linear, convex
Parent material: Alluvium
Typical profile
H1 - 0 to 36 inches: loam
H2 - 36 to 60 inches: sand
Properties and qualities
Slope:0 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Moderately well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.60 to 2.00
in/hr)
Depth to water table: About 12 to 36 inches
Frequency of flooding: Occasional None
Frequency of ponding: None
Calcium carbonate, maximum content:5 percent
Gypsum, maximum content:1 percent
Maximum salinity: Very slightly saline to moderately saline (2.0 to 8.0 mmhos/cm)
Sodium adsorption ratio, maximum:2.0
Available water capacity: Moderate (about 7.6 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 7w
Hydrologic Soil Group: C
Hydric soil rating: No
Minor Components
Wann
Percent of map unit:10 percent
Landform: Terraces
Hydric soil rating: Yes
Fluvaquents
Percent of map unit:5 percent
Landform: Marshes
Hydric soil rating: Yes
North Hangs Mine
February 2023 31
5. Geology and Hazard
A geologic hazards study by Kumar & Associates was conducted on the property. It can be
found in Appendix 3.
6. Groundwater and Aquifer Recharge Areas
Mining activity at the North Hangs Mine will be conducted below the groundwater table. This is
facilitated through the dewatering process during mining; dewatering pumps drain the active pit
of groundwater to allow for mining activity to take place below natural grade. The dewatering of
the pits will take place under an approve CDPHE discharge permit and CDWR gravel well
permit.
Groundwater is located approximately four feet below the surface of the ground onsite. No wells
are located within 600 feet of the proposed pit 2. Mining activity will expose groundwater from the
very beginning of operations. Dewatering of the pit will take place to bring the groundwater table
below the operating floor. This allows equipment to safely and effectively mine the alluvial
deposit. The pit pump will be active continuously during the mining season, which typically is
mid-April to early-November, depending on weather. The pit pump will not run during flood
events or when temperatures drop below freezing.
The only known aquifer in the area is the shallow alluvial aquifer of the Colorado River. Depth to
water table in the permit area varies depending on location and time of year but averages
roughly four feet below ground surface. According to the U.S. Geological Survey’s Ground
Water Atlas of the United States, the only groundwater aquifer system below the alluvial one in
this area is the Unita-Animas Aquifer System. This is located beneath the Mancos Shale that
underlays the site alluvium and will not be reach by mining or affected by mining
Wastewater and sewage will be stored in a portable vault toilet that will be service by a
contractor. This will prevent sewage or effluent from wastewater from entering the Colorado
River alluvial aquifer.
The 100-YR floodplain of the Colorado River encompasses the entire site. See the Floodplain
Analysis for details.
2 https://gis.colorado.gov/dnrviewer/Index.html?viewer=dwrwellpermit
North Hangs Mine
February 2023 32
7. Environmental Impacts
An environmental impact analysis has been conducted by Environmental Solutions, Inc. and
can be found in Appendix 2.
8. Nuisance
A detailed discussions of all potential impacts to adjacent land from generation of vapor, dust,
smoke, noise, glare or vibration, or other emanations can be found under the Additional
Standards for Gravel Operations section further on in this SUP application.
9. Hours of Operation
Hours of operation at the North Hangs Mine will be limited to Monday thru Saturday, 7am to 7
pm. As specified in Article 7-1001.H.
North Hangs Mine
February 2023 33
Improvements Agreement
No improvements agreement is applicable to the North Hangs Mine. All reclamation standards
and related surety are administered by the Colorado Mined Reclamation Board.
North Hangs Mine
February 2023 34
Traffic Study
A traffic study by Kimley Horn is attached to this section.
Traffic Impact Study
North Hangs Pit
Garfield County, Colorado
Prepared for:
Western Slope Materials
TRAFFIC IMPACT STUDY
North Hangs Pit
Garfield County, Colorado
Prepared for
Western Slope Materials
14682 Colorado 82
Carbondale, CO 81623
Prepared by
Kimley-Horn and Associates, Inc.
Curtis D. Rowe, P.E., PTOE
6200 South Syracuse Way
Suite 300
Greenwood Village, Colorado 80111
(303) 228-2300
July 2023
This document, together with the concepts and designs presented herein, as an instrument of
service, is intended only for the specific purpose and client for which it was prepared. Reuse of
and improper reliance on this document without written authorization and adaptation by
Kimley-Horn and Associates, Inc. shall be without liability to Kimley-Horn and Associates, Inc.
07/11/2023
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page i
TABLE OF CONTENTS
TABLE OF CONTENTS ................................................................................................... i
LIST OF TABLES .............................................................................................................ii
LIST OF FIGURES ...........................................................................................................ii
1.0 EXECUTIVE SUMMARY ........................................................................................... 1
2.0 INTRODUCTION ....................................................................................................... 3
3.0 EXISTING AND FUTURE CONDITIONS .................................................................. 5
3.1 Existing Study Area ...........................................................................................................5
3.2 Existing Roadway Network ................................................................................................5
3.3 Existing Traffic Volumes ....................................................................................................8
3.4 Unspecified Development Traffic Growth ...........................................................................8
4.0 PROJECT TRAFFIC CHARACTERISTICS ............................................................. 13
4.1 Trip Generation................................................................................................................13
4.2 Trip Distribution ...............................................................................................................14
4.3 Traffic Assignment ...........................................................................................................14
4.4 Total (Background Plus Project) Traffic............................................................................14
5.0 TRAFFIC OPERATIONS ANALYSIS ...................................................................... 19
5.1 Analysis Methodology ......................................................................................................19
5.2 Key Intersection Operational Analysis .............................................................................20
5.3 CDOT Turn Bay Length Analysis .....................................................................................22
5.4 Improvement Summary ...................................................................................................24
6.0 CONCLUSIONS AND RECOMMENDATIONS ....................................................... 26
APPENDICES
Appendix A – Intersection Count Sheets
Appendix B – Trip Generation Worksheets
Appendix C – Intersection Analysis Worksheets
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196171000 – North Hangs Pit Page ii
LIST OF TABLES
Table 1 – North Hangs Pit Project Traffic Generation ................................................................14
Table 2 – Level of Service Definitions .......................................................................................19
Table 3 – CR-346/Frontage Road and CR-315 LOS Results ....................................................20
Table 4 – I-70 Westbound Ramp and CR-315 LOS Results ......................................................21
Table 5 – I-70 Eastbound Ramp and CR-315 LOS Results .......................................................22
LIST OF FIGURES
Figure 1 – Vicinity Map ................................................................................................................4
Figure 2 – Site Area ....................................................................................................................6
Figure 3 – Existing Lane Configurations and Control...................................................................9
Figure 4 – Existing Traffic Volumes ...........................................................................................10
Figure 5 – 2025 Background Traffic Volumes............................................................................11
Figure 6 – 2040 Background Traffic Volumes............................................................................12
Figure 7 – Project Trip Distribution ............................................................................................15
Figure 8 – Project Traffic Assignment .......................................................................................16
Figure 9 – 2025 Background Plus Project Traffic Volumes ........................................................17
Figure 10 – 2040 Background Plus Project Traffic Volumes ......................................................18
Figure 11 – Recommended Lane Configurations and Control ...................................................25
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 1
1.0 EXECUTIVE SUMMARY
North Hangs Pit is a proposed 73-acre gravel pit development to be located at the east end of
County Road 346 (CR-346)/Frontage Road in Garfield County, Colorado. It is expected that the
gravel pit will be open by the end of 2025 and that excavation will occur for 15 years with pit
operations ending around 2040; therefore, analysis was completed for the 2025 short-term
opening and 2040 long-term closing horizons.
The purpose of this study is to identify project traffic generation characteristics, to identify
potential project traffic related impacts on the local street system, and to develop mitigation
measures required for identified impacts. The following intersections were identified for
incorporation and evaluation within this study:
· County Road 315 (CR-315) and CR-346/Frontage Road
· Interstate 70 (I-70) Westbound Ramp and CR-315 (Interchange 94)
· I-70 Eastbound Ramp and CR-315 (Interchange 94)
Regional access to the project will be provided by Interstate 70 (I-70), while primary access will
be provided by CR-315. Direct access to the site will be provided at the east end of CR-
346/Frontage Road.
North Hangs Pit is expected to generate approximately 42 daily trips with nine (9) trips occurring
during each of the morning and afternoon peak hours. Distribution of project traffic on the street
system was based on the area street system characteristics, existing traffic patterns and
volumes, demographic information, and the proposed access system for the project.
Assignment of project traffic was based upon the trip generation described previously and the
distributions developed.
Based on the analysis presented in this report, Kimley-Horn believes North Hangs Pit will be
successfully incorporated into the existing and future roadway network without the need for any
traffic improvements. All project intersections are expected to operate acceptably throughout the
2040 long-term study horizon with their existing lane configuration and control. However, based
on traffic projections, the addition of project traffic on the south of CR-346/Frontage Road and
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 2
CR-315 is anticipated to increase existing traffic by more than 20 percent. Therefore, an access
permit is anticipated to be needed at this intersection as development occurs.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 3
2.0 INTRODUCTION
Kimley-Horn and Associates, Inc. has prepared this report to document the results of a Traffic
Impact Study of future traffic conditions associated with North Hangs Pit, an approximate 73-
acre gravel pit development to be located at the east end of County Road 346 (CR-
346)/Frontage Road in Garfield County, Colorado. A vicinity map illustrating the project site
location is shown in Figure 1. It is expected that the gravel pit will be open by the end of 2025
and that excavation will occur for 15 years with pit operations ending around 2040; therefore,
analysis was completed for the 2025 short-term opening and 2040 long-term closing horizons.
The purpose of this study is to identify project traffic generation characteristics, to identify
potential project traffic related impacts on the local street system, and to develop mitigation
measures required for identified impacts. The following intersections were identified for
incorporation and evaluation within this study:
· County Road 315 (CR-315) and CR-346/Frontage Road
· Interstate 70 (I-70) Westbound Ramp and CR-315 (Interchange 94)
· I-70 Eastbound Ramp and CR-315 (Interchange 94)
Regional access to the project will be provided by Interstate 70 (I-70), while primary access will
be provided by CR-315. Direct access to the site will be provided at the east end of CR-
346/Frontage Road.
70
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196171000 – North Hangs Pit Page 5
3.0 EXISTING AND FUTURE CONDITIONS
3.1 Existing Study Area
The existing site and adjacent area surrounding the site is vacant land. The Colorado River
borders the site to the north. The Garfield County Regional Airport is located west of the site on
the south side of I-70. The City of Rifle is located west of the project site. To the northeast is the
Town of Silt. The land uses and roadway network surrounding the site within the project study
area are shown in the aerial of Figure 2.
3.2 Existing Roadway Network
CR-346/Frontage Road currently provides a single through lane of travel in each direction
eastbound and westbound. Both the I-70 Westbound and Eastbound Ramps provide single
lanes on the on and off ramps. CR-315 provides one through lane in each direction northbound
and southbound with a speed limit of 35 miles per hour southbound and 20 miles per hour
northbound as traffic approaches the Interstate 70 interchange.
The intersection of CR-346/Frontage Road and CR-315 operates with yield control on the
eastbound and westbound approaches. The eastbound approach consists of a shared
through/right turn lane. The westbound approach consists of a shared left turn/through lane.
The northbound approach consists of a shared left turn/right turn lane. This intersection is
shown in the following photo.
CR-346/Frontage Road and CR-315
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 7
The intersection of the I-70 Westbound Ramp with CR-315 is stop controlled with a stop sign on
the westbound approach. The westbound approach consists of one lane for all movements.
The northbound approach consists of a shared left turn/through lane. The southbound
approach consists of a shared through/right turn lane (shown in following photo).
I-70 Westbound Ramp and CR-315
The intersection of the I-70 Eastbound Ramp with CR-315 is stop controlled with a stop sign on
the eastbound approach. The eastbound approach consists of one lane for all movements.
The northbound approach consists of a shared through/right turn lane. The southbound
approach consists of a shared left turn/through lane (shown in following photo).
I-70 Eastbound Ramp with CR-315
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196171000 – North Hangs Pit Page 8
The intersection lane configuration and control for the study area intersections are shown in
Figure 3.
3.3 Existing Traffic Volumes
Existing peak hour turning movement counts were conducted on Tuesday, March 9, 2021,
Wednesday, March 10, 2021, and Thursday, March 11, 2021. The counts were conducted
during the morning and afternoon peak hours of adjacent street traffic in 15-minute intervals
from 7:00 AM to 9:00 AM and 4:00 PM to 6:00 PM on these count dates. The turning
movement counts are shown in Figure 4 with count sheets provided in Appendix A.
3.4 Unspecified Development Traffic Growth
Based on a comparison of existing and anticipated future traffic volumes in this overall study
area from review of the City of Rifle Transportation Master Plan, traffic volumes within this study
area are anticipated to increase by an annual approximate two (2) percent growth rate. It is
believed that applying this growth rate to the key study intersections in the project area will
provide a conservative analysis as this equates to a 45 percent traffic volume increase by 2040.
This annual growth rate of two (2) percent was used as a basis for determining the 2025 short-
term and 2040 long-term horizon years. Background traffic volumes for 2025 and 2040 are
shown in Figure 5 and Figure 6, respectively.
6(
3
)
4(
1
)
4(4)
1(2)
2(0)
28
(
3
1
)
3(
3
)
4(
0
)
0(
4
)
1(2)
4(2)
57(77)
23
(
3
5
)
47
(
7
1
)
54
(
7
3
)
1(
1
)
6(3)
2(0)
23(30)
10
(
5
)
5(
5
)
5(5)
5(5)
5(0)
35
(
3
5
)
5(
5
)
5(
0
)
0(
5
)
5(5)
5(5)
65(85)
25
(
4
0
)
55
(
8
0
)
60
(
8
0
)
5(
5
)
10(5)
5(0)
25(35)
10
(
5
)
10
(
5
)
10(10)
5(5)
5(0)
45
(
5
0
)
5(
5
)
10
(
0
)
0(
1
0
)
5(5)
10(5)
85(115)
35
(
5
5
)
70
(
1
0
5
)
80
(
1
1
0
)
5(
5
)
10(5)
5(0)
35(45)
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 13
4.0 PROJECT TRAFFIC CHARACTERISTICS
4.1 Trip Generation
Site-generated traffic estimates were determined based on anticipated pit operation
characteristics provided by the user of the gravel pit. It is anticipated that up to 100,000 tons of
aggregates could be moved from the site in a year. No aggregate dump trucks will be stored
onsite as all aggregate material will be moved by third party companies. The pit is anticipated to
be open for operations from 6:30 am to 4:30 pm for a total of 10 hours per day.
With 25-ton aggregate dump trucks, the yearly 100,000 tons of material excavated per year
would equate to a total of 4,000 dump truck round trips in a year. With approximately 260
working days throughout a year, the 4,000 yearly dump truck round trips would equate to an
average of 16 aggregate truck round trips per day (32 total dump truck trips per day). This
equates to 1.6 aggregate dump truck round trips during each hour. To provide a conservative
analysis, it was assumed that two (2) aggregate dump trucks would arrive and depart during
each studied peak hour.
The gravel pit is anticipated to have a total of five (5) employees for the aggregate operations. It
was assumed that these five (5) employees would all arrive during the morning peak hour and
would all depart in the afternoon peak hour in single occupant vehicles to provide a conservative
analysis.
Based on this information of the anticipated pit operations, it was determined North Hangs Pit
would generate approximately 21 daily round trips (42 daily total trips) with nine (9) trips
occurring during each of the morning and afternoon peak hours.Table 1 summarizes the
anticipated trips that will be generated in association with the facility. The trip generation
derivations are included in Appendix B.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 14
Table 1 – North Hangs Pit Project Traffic Generation
Trip Type Daily
Round
Trips
Total
Daily
Trips
Weekday Vehicle Trips
AM Peak Hour PM Peak Hour
In Out Total In Out Total
25-Ton Dump Trucks 16 32 2 2 4 2 2 4
Employee Trips 5 10 5 0 5 0 5 5
Total Trips 21 42 7 2 9 2 7 9
4.2 Trip Distribution
Distribution of site traffic on the street system was based on the area street system
characteristics, existing traffic patterns and volumes, anticipated surrounding development
areas, and the proposed access system for the project. The directional distribution of traffic is a
means to quantify the percentage of site-generated traffic that approaches the site from a given
direction and departs the site back to the original source. The project trip distribution is
illustrated in Figure 7.
4.3 Traffic Assignment
Project traffic assignment was obtained by applying the project trip distribution to the estimated
traffic generation of the development shown in Table 1. Total project traffic assignment is shown
in Figure 8.
4.4 Total (Background Plus Project) Traffic
Project traffic volumes were added to the background volumes to represent estimated traffic
conditions for the short-term 2025 and long-term 2040 horizons.Figure 9 illustrates the
background plus project traffic volumes for the 2025 horizon at the study key intersections. The
2040 total long-term horizon traffic volumes for the study area are shown in Figure 10.
40%
[4
0
%
]
40
%
[6
0
%
]
60%
10
0
%
[100%]
[6
0
%
]
7(
2
)
2(7)
3(
1
)
1(
3
)
1(
4
)
4(1)
1(
4
)
3(1)
10
(
5
)
15
(
1
0
)
5(5)
5(5)
10(10)
35
(
3
5
)
10
(
1
0
)
10
(
5
)
5(
1
0
)
10(10)
5(5)
65(85)
25
(
4
0
)
55
(
8
0
)
60
(
8
0
)
10
(
1
0
)
15(10)
5(0)
25(35)
10
(
5
)
20
(
1
0
)
10(10)
5(5)
10(10)
45
(
5
0
)
10
(
1
0
)
15
(
5
)
5(
1
5
)
10(10)
10(5)
85(115)
35
(
5
5
)
70
(
1
0
5
)
80
(
1
1
0
)
10
(
1
0
)
15(10)
5(0)
35(45)
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 19
5.0 TRAFFIC OPERATIONS ANALYSIS
Kimley-Horn’s analysis of traffic operations in the vicinity of the site was conducted to determine
potential capacity deficiencies in the 2025 and 2040 development horizons at the identified key
intersections. The acknowledged source for determining overall capacity is the Highway
Capacity Manual1.
5.1 Analysis Methodology
Capacity analysis results are listed in terms of Level of Service (LOS). LOS is a qualitative term
describing operating conditions a driver will experience while traveling on a particular street or
highway during a specific time interval. It ranges from A (very little delay) to F (long delays and
congestion). For intersections and roadways in this study area, standard traffic engineering
practice identifies overall LOS D for signalized intersections and LOS E for movements and
approaches of unsignalized intersections as the minimum threshold for acceptable operations.
Table 2 shows the definition of level of service for signalized and unsignalized intersections.
Table 2 – Level of Service Definitions
Level of
Service
Signalized Intersection
Average Total Delay
(sec/veh)
Unsignalized Intersection
Average Total Delay
(sec/veh)
A ≤ 10 ≤ 10
B > 10 and ≤ 20 > 10 and ≤ 15
C > 20 and ≤ 35 > 15 and ≤ 25
D > 35 and ≤ 55 > 25 and ≤ 35
E > 55 and ≤ 80 > 35 and ≤ 50
F > 80 > 50
Definitions provided from the Highway Capacity Manual, Sixth Edition, Transportation Research Board, 2016.
Study area intersections were analyzed based on average total delay analysis for unsignalized
intersections. Under the unsignalized analysis, the level of service (LOS) for a two-way stop-
controlled intersection is determined by the computed or measured control delay and is defined
for each minor movement. Level of service for a two-way stop-controlled intersection is not
defined for the intersection as a whole. Of note, level of service for a signalized and four-way
stop controlled intersection is defined for each approach and for the intersection.
1 Transportation Research Board,Highway Capacity Manual, Sixth Edition, Washington DC, 2016.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 20
5.2 Key Intersection Operational Analysis
Calculations for the level of service at the key intersections for the study area are provided in
Appendix D. The existing year analysis is based on the lane geometry and intersection control
shown in Figure 3.The existing peak hour factors were utilized in the existing, 2025 horizon,
and 2040 horizon analyses. Due to the low volumes at the key intersections, the existing peak
hour factors were used for the 2040 analysis instead of the recommended HCM urban area
peak hour factor of 0.92. Synchro traffic analysis software was used to analyze the study
intersections and access driveways for level of service.
CR-346/Frontage Road and CR-315
The existing unsignalized intersection of CR-346/Frontage Road and CR-315 operates with
yield control on the eastbound and westbound approaches. With the existing control and lane
configuration, the intersection is anticipated to operate acceptably throughout the 2040 horizon
with the addition of North Hangs Pit project traffic. Therefore, no improvements or modifications
are anticipated to be needed.Table 3 provides the results of the level of service at this
intersection.
Table 3 – CR-346/Frontage Road and CR-315 LOS Results
Scenario
AM Peak Hour PM Peak Hour
Delay
(sec/veh)LOS Delay
(sec/veh)LOS
2021 Existing
Northbound Left
Eastbound Approach
Westbound Approach
7.2
8.4
9.0
A
A
A
7.2
8.3
9.6
A
A
A
2025 Background
Northbound Left
Eastbound Approach
Westbound Approach
7.3
8.4
9.3
A
A
A
7.2
8.4
9.7
A
A
A
2025 Background Plus Project
Northbound Left
Eastbound Approach
Westbound Approach
7.3
8.4
9.6
A
A
A
7.2
8.4
9.6
A
A
A
2040 Background
Northbound Left
Eastbound Approach
Westbound Approach
7.3
8.4
9.3
A
A
A
7.2
8.4
9.7
A
A
A
2040 Background Plus Project
Northbound Left
Eastbound Approach
Westbound Approach
7.3
8.4
9.7
A
A
A
7.2
8.4
9.6
A
A
A
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 21
I-70 Westbound Ramp and CR-315
The existing unsignalized intersection of I-70 Westbound Ramp and CR-315 operates with stop
control on the westbound offramp approach. With the existing control and lane configuration, the
movements at this intersection are anticipated to operate acceptably throughout the 2040
horizon with the addition of project traffic.Table 4 provides the results of the level of service at
this intersection.
Table 4 – I-70 Westbound Ramp and CR-315 LOS Results
Scenario
AM Peak Hour PM Peak Hour
Delay
(sec/veh)LOS Delay
(sec/veh)LOS
2021 Existing
Northbound Left
Westbound Approach
7.4
9.6
A
A
7.5
9.6
A
A
2025 Background
Northbound Left
Westbound Approach
7.5
9.8
A
A
7.5
9.8
A
A
2025 Background Plus Project
Northbound Left
Westbound Approach
7.5
9.9
A
A
7.5
9.9
A
A
2040 Background
Northbound Left
Westbound Approach
7.5
10.3
A
B
7.5
10.4
A
B
2040 Background Plus Project
Northbound Left
Westbound Approach
7.5
10.4
A
B
7.6
10.6
A
B
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 22
I-70 Eastbound Ramp and CR-315
The existing unsignalized intersection of I-70 Eastbound Ramp and CR-315 operates with stop
control on the eastbound offramp approach. With the existing control and lane configuration, the
movements at this intersection are anticipated to operate acceptably throughout the 2040
horizon.Table 5 provides the results of the level of service at this intersection.
Table 5 – I-70 Eastbound Ramp and CR-315 LOS Results
Scenario
AM Peak Hour PM Peak Hour
Delay
(sec/veh)LOS Delay
(sec/veh)LOS
2021 Existing
Eastbound Approach
Southbound Left
9.0
7.5
A
A
8.9
7.5
A
A
2025 Background
Eastbound Approach
Southbound Left
9.2
7.6
A
A
9.0
7.5
A
A
2025 Background Plus Project
Eastbound Approach
Southbound Left
9.4
7.9
A
A
9.2
7.6
A
A
2040 Background
Eastbound Approach
Southbound Left
9.4
7.6
A
A
9.2
7.6
A
A
2040 Background Plus Project
Eastbound Approach
Southbound Left
9.6
8.0
A
A
9.4
7.7
A
A
5.3 CDOT Turn Bay Length Analysis
The threshold for requiring an access permit along Colorado Department of Transportation
(CDOT) roadways occurs when project traffic is anticipated to increase the existing access
traffic volumes by more than 20 percent. Based on traffic projections, the addition of project
traffic on the south of CR-346/Frontage Road and CR-315 is anticipated to increase existing
traffic by more than 20 percent. Therefore, an access permit is anticipated to be needed at this
intersection as development occurs.
CR-346/Frontage Road is categorized as an F-R roadway with an assumed 35 mile per hour
speed limit, as such turn lanes requirements are to be designed per the State Highway Access
Code (SHAC). According to the State Highway Access Code for category Frontage Road (F-R)
roadways the turn lane warrants are as follows:
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 23
· A left turn lane with storage length plus taper length is required for any access with a
projected peak hour left ingress turning volume greater than 25 vph. If the posted speed
is greater than 40 mph, a deceleration lane and taper is required for any access with a
projected peak hour left ingress turning volume greater than 10 vph. The taper length
will be included within the deceleration length.
· A right turn lane with storage length plus taper length is required for any access with a
projected peak hour right ingress turning volume greater than 50 vph. If the posted
speed is greater than 40 mph, a right turn deceleration lane with taper is required for
any access with a projected peak hour right ingress turning volume greater than 25 vph.
The taper length will be included within the deceleration length.
· A right turn acceleration lane with taper is required for any access with a projected peak
hour right turning volume greater than 50 vph when the posted speed on the highway is
greater than 40 mph and the highway has only one lane for through traffic in the
direction of the right turn. A right turn acceleration lane is not required on multi-lane
highways of this category. The taper length will be included within the required
acceleration length.
Based on the 2040 traffic volume projections, turn lane requirements at the intersection of CR-
346/Frontage Road and CR-315 are as follows:
· A westbound left turn lane is not warranted based on projected 2040 background plus
project traffic volumes being 10 westbound left turns during the peak hour and the
threshold being 25 vph.
· An eastbound right turn lane is not warranted based on projected 2040 background plus
project traffic volumes being 10 eastbound right turns during the peak hour and the
threshold being 50 vph.
· An eastbound acceleration lane along CR-346/Frontage Road from the CR-315
northbound right turn is not warranted based on projected 2040 background plus project
traffic volumes being 20 northbound right turns during the peak hour and the threshold
being 50 vph.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 24
5.4 Improvement Summary
Based on the results of the intersection operational analysis, the key intersection recommended
improvements and control are shown in Figure 11.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit Page 26
6.0 CONCLUSIONS AND RECOMMENDATIONS
Based on the analysis presented in this report, Kimley-Horn believes North Hangs Pit will be
successfully incorporated into the existing and future roadway network without the need for any
traffic improvements. All project intersections are expected to operate acceptably throughout the
2040 long-term study horizon with their existing lane configuration and control. However, based
on traffic projections, the addition of project traffic on the south of CR-346/Frontage Road and
CR-315 is anticipated to increase existing traffic by more than 20 percent. Therefore, an access
permit is anticipated to be needed at this intersection as development occurs.
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit
APPENDICES
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit
APPENDIX A
Intersection Count Sheets
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
1
0
0
0
0
1
0
WB 0.0%0.38
NB 0.0%0.36
Peak Hour: 8:00 AM 9:00 AM
HV %:PHF
EB 0.0%0.50
Date: 03/10/2021
Peak Hour Count Period: 7:00 AM 9:00 AM
UT LT TH RT
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
TotalUTLTTHRT
SB --
TOTAL 0.0%0.43
TH RT
7:00 AM 0 0 1 0 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
0 0 1 0 0 0
0 0 0 3 0
7:15 AM 0 0 0 2
0 0 2 0 0 0
0 0 0 1 0
7:45 AM 0 0 0 0
0 0 0 0 0 0
4 0
7:30 AM 0 0 0 0 0 1 0
0 1 0 0 0 0
1 9
8:00 AM 0 0 0 0 0 1 0
0 0 0 0 0 0000001
0 0 0 0 0 1
0 0 0 2 8
8:15 AM 0 0 0 1
0 0 0 0 1 0
0 0 0 3 8
8:45 AM 0 0 0 1
0 0 1 0 0 0
2 6
8:30 AM 0 0 0 2 0 0 0
0 0 0 0 0 0
10 17030000011004
Count Total 0 0 1 6 0 3 2 0 0 0 26 0
Peak
Hour
All 0 0 0
0 0 9 0 5 0
0 0 0 0 0 0000000
0 17 0
HV 0 0 0 0 0 0
6 0 4 0 0 0402100
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
0%----0%0%0%--0%-HV%---0%-
0 0
7:15 AM 1 0 0 0 1 0 0
0 0 0 0 0 0
West North South
7:00 AM 0 0 0 0 0 0
EB WB NB SB Total East
7:45 AM 0 0 1 0 1
0 0 0 0 0 0
0
7:30 AM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
8:15 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 1
8:00 AM 0 0 0 0 0 0
0 0 0 0 0 0
8:45 AM 0 0 0 0 0
0 0 0 0 0 0
0
8:30 AM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0000000
0 1
Peak Hr 0 0 0 0 0 0 0
0 0 0 0 0 0Count Total 1 0 1 0 2 0
0000000
0
0
00
0
0
0
0
0 0
N
CR 315
CR 316 FRONTAGE RD
CR 316
FRONTAGE RD
CR
3
1
5
CR 316
FRONTAGE RD
17TEV:
0.43PHF:
1
2 3
40
46
106
0
4
04
7 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
Total
Rolling
One HourEastboundWestbound
0 0 0 0 0
7:15 AM 0 0 0 1
0 0 0 0 0 0
TH RT
7:00 AM 0 0 0 0 0 0 0
UT LT TH RT UT LT
1 0
7:30 AM 0 0 0 0 0 0 0
0 0 0 0 0 0000000
0 0 0 0 0 1
0 0 0 0 0
7:45 AM 0 0 0 0
0 0 0 0 0 0
0 0 0 0 2
8:15 AM 0 0 0 0
0 0 0 0 0 0
1 2
8:00 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 1
8:30 AM 0 0 0 0 0 0 0
0 0 0 0 0 0000000
0 0 0 0 0 0
0 0 0 0 1
8:45 AM 0 0 0 0
0 0 0 0 0 0
0 0000000
0 0 0 2 0
Peak Hour 0 0 0 0
0 0 1 0 0 0Count Total 0 0 0 1 0 0 0
Westbound Northbound Southbound
LT TH RT LT TH RT LT
0 0
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
Total
Rolling
One HourEastbound
0 0 0 0 0 0000000
0 0 0 0
7:15 AM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
7:00 AM 0 0 0 0
0 0
7:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
7:30 AM 0 0 0 0 0 0
0 0 0 0 0 0
8:15 AM 0 0 0 0 0
0 0 0 0 0 0
0
8:00 AM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
8:45 AM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
8:30 AM 0 0 0 0 0 0
0 0 0 0 0 0
0000000
Count Total 0 0 0 0 0 0 0 0
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
0
0
0
0
0
0
0
WB 50.0%0.50
NB 0.0%0.50
Peak Hour: 4:30 PM 5:30 PM
HV %:PHF
EB 0.0%0.33
Date: 03/09/2021
Peak Hour Count Period: 4:00 PM 6:00 PM
UT LT TH RT
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
TotalUTLTTHRT
SB --
TOTAL 10.0%0.50
TH RT
4:00 PM 0 0 1 0 0 1 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
0 0 0 0 0 0
0 0 0 2 0
4:15 PM 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0
4:45 PM 0 0 0 0
0 0 0 0 0 0
0 0
4:30 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
2 4
5:00 PM 0 0 0 1 0 0 0
0 0 0 0 0 0001001
0 0 1 0 0 0
0 0 0 3 5
5:15 PM 0 0 0 3
0 0 2 0 0 0
0 0 0 0 10
5:45 PM 0 0 0 0
0 0 0 0 0 0
5 10
5:30 PM 0 0 0 0 0 0 0
0 1 0 0 0 0
2 10000000000002
Count Total 0 0 1 4 0 1 2 0 0 0 14 0
Peak
Hour
All 0 0 0
0 0 5 0 1 0
0 0 0 0 1 0100000
0 10 0
HV 0 0 0 0 0 0
3 0 1 0 0 0400200
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
0%----10%-50%--0%-HV%---0%-
0 0
4:15 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
West North South
4:00 PM 0 0 0 0 0 0
EB WB NB SB Total East
4:45 PM 0 1 0 0 1
0 0 0 0 0 0
0
4:30 PM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
5:15 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 0 0 0 0 0 0
0 0 0 0 0 0
5:45 PM 0 0 1 0 1
0 0 0 0 0 0
0
5:30 PM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0000000
0 0
Peak Hr 0 1 0 0 1 0 0
0 0 0 0 0 0Count Total 0 1 1 0 2 0
0000000
0
0
00
0
0
0
0
0 0
N
CR 315
CR 316 FRONTAGE RD
CR 316
FRONTAGE RD
CR
3
1
5
CR 316
FRONTAGE RD
10TEV:
0.5PHF:
2
0 2
10
13
44
0
4
04
5 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
Total
Rolling
One HourEastboundWestbound
0 0 0 0 0
4:15 PM 0 0 0 0
0 0 0 0 0 0
TH RT
4:00 PM 0 0 0 0 0 0 0
UT LT TH RT UT LT
0 0
4:30 PM 0 0 0 0 0 0 0
0 0 0 0 0 0000000
0 0 1 0 0 0
0 0 0 0 0
4:45 PM 0 0 0 0
0 0 0 0 0 0
0 0 0 0 1
5:15 PM 0 0 0 0
0 0 0 0 0 0
1 1
5:00 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 1
5:30 PM 0 0 0 0 0 0 0
0 0 0 0 0 0000000
0 0 0 0 0 1
0 0 0 0 1
5:45 PM 0 0 0 0
0 0 0 0 0 0
1 1000000
0 0 0 2 0
Peak Hour 0 0 0 0
0 0 1 0 0 0Count Total 0 0 0 0 0 0 1
Westbound Northbound Southbound
LT TH RT LT TH RT LT
1 0
Interval
Start
CR 316 FRONTAGE RD CR 316 FRONTAGE RD CR 315 0 15-min
Total
Rolling
One HourEastbound
0 0 0 0 0 0001000
0 0 0 0
4:15 PM 0 0 0 0 0
0 0 0 0 0 0
TH RT LT TH RT
4:00 PM 0 0 0 0
0 0
4:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
4:30 PM 0 0 0 0 0 0
0 0 0 0 0 0
5:15 PM 0 0 0 0 0
0 0 0 0 0 0
0
5:00 PM 0 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0
5:45 PM 0 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0
5:30 PM 0 0 0 0 0 0
0 0 0 0 0 0
0000000
Count Total 0 0 0 0 0 0 0 0
0 0 0000000Peak Hour 0 0 0 0 0
0 0 0 0 0 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
0
0
0
0
0
0
00000000
0 0
Peak Hour 0 12 6 1 19 0 0
0 0 0 0 0 0Count Total 0 19 7 1 27 0
0 0 00000008:45 AM 0 0 0 0 0
0 0 0 0 0 0
0
8:30 AM 0 2 1 0 3 0 0 0
0 0 0 0 0 0
0 0
8:15 AM 0 2 0 0 2 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 0 3 1 0 4 0
0 0 0 0 0 0
0 0 0
0
7:30 AM 0 3 3 0 6 0 0 0
0 0 0 0 0 0
0 3 0
EB WB NB SB Total East
7:45 AM 0 1 0 1 2
0 0 0
-21%0%HV%-----
0 0
7:15 AM 0 5 2 0 7 0 0
0 0 0 0 0 0
West North South
7:00 AM 0 3 0
9
28 3 0 0 0 00057410
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
----25%20%16%50%100%
Peak
Hour
All 0 0 0
1 0 42 12 0 0
0 0 0 1 19 0210600
4 97 0
HV 0 0 0 0 0
Count Total 0 0 0 0 0 96 5 0 0 9 165 0
18 84500001081003
0 0 2 16 83
8:45 AM 0 0 0 0
0 0 4 2 0 0
19 93
8:30 AM 0 0 0 0 0 8 0
1 0 0 0 0 10130004
0 0 1 31 97
8:15 AM 0 0 0 0
0 0 3 2 0 0
17 81
8:00 AM 0 0 0 0 0 24 1
0 0 0 0 0 2091005
0 0 1 26 0
7:45 AM 0 0 0 0
1 0 9 0 0 0
23 0
7:30 AM 0 0 0 0 0 14 1
1 0 0 0 0 001010011
0 0 1 15 0
7:15 AM 0 0 0 0
0 0 3 1 0 07:00 AM 0 0 0 0 0 10 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
TotalUTLTTHRT
Date: 03/11/2021
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 25.0%0.50
TOTAL 19.6%0.78
TH RT
WB 19.4%0.62
NB 19.4%0.65
Peak Hour: 7:15 AM 8:15 AM
HV %:PHF
EB --
0
0
0
0 0 0
000
0
0
0
0
0
0 0
N
CR 315
I-70 WB RAMP
I-70 WB RAMP
CR
3
1
5
I-70 WB RAMP
CR
3
1
5
97TEV:
0.78PHF:
4 0 0
4 4
0
1
4
57
62
00
0328
3157
0
0
0
0
0
36 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
19 0
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
Total
Rolling
One Hour
0 0 0 0 0 1092106
RTTHLT RTTHLTRT
0 0 1 27 0
Peak Hour 0 0 0 0
1 0 7 0 0 0Count Total 0 0 0 0 0 16 2
0 9000000000000
0 0 0 3 11
8:45 AM 0 0 0 0
0 0 1 0 0 0
2 14
8:30 AM 0 0 0 0 0 2 0
0 0 0 0 0 0020000
0 0 0 4 19
8:15 AM 0 0 0 0
0 0 1 0 0 0
2 18
8:00 AM 0 0 0 0 0 3 0
0 0 0 0 0 1010000
0 0 0 6 0
7:45 AM 0 0 0 0
1 0 3 0 0 0
7 0
7:30 AM 0 0 0 0 0 1 1
0 0 0 0 0 0041002
0 0 0 3 0
7:15 AM 0 0 0 0
0 0 0 0 0 0
TH RT
7:00 AM 0 0 0 0 0 3 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
0
0
0
0
0
0
00000000
0 0
Peak Hour 0 7 8 0 15 0 0
0 0 0 0 0 0Count Total 0 15 10 0 25 0
0 0 00000005:45 PM 0 3 1 0 4
0 0 0 0 0 0
0
5:30 PM 0 2 3 0 5 0 0 0
0 0 0 0 0 0
0 0
5:15 PM 0 0 2 0 2 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 0 2 2 0 4 0
0 0 0 0 0 0
0 0 0
0
4:30 PM 0 1 1 0 2 0 0 0
0 0 0 0 0 0
0 3 0
EB WB NB SB Total East
4:45 PM 0 2 0 0 2
0 0 0
-23%33%HV%-----
0 0
4:15 PM 0 3 0 0 3 0 0
0 0 0 0 0 0
West North South
4:00 PM 0 2 1
6
31 3 0 0 0 40077220
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
---0%-13%8%50%0%
Peak
Hour
All 0 0 0
2 0 65 4 0 0
0 0 0 0 15 0100710
0 119 0
HV 0 0 0 0 0
Count Total 0 0 0 0 0 150 6 0 4 1 232 0
29 1191000000230104
0 0 0 23 112
5:45 PM 0 0 0 0
0 0 8 0 0 0
36 118
5:30 PM 0 0 0 0 0 13 2
1 0 0 0 3 002000012
0 1 0 31 115
5:15 PM 0 0 0 0
1 0 7 1 0 0
22 113
5:00 PM 0 0 0 0 0 21 0
1 0 0 0 0 00121008
0 0 0 29 0
4:45 PM 0 0 0 0
0 0 11 0 0 0
33 0
4:30 PM 0 0 0 0 0 17 1
0 0 0 0 0 00241008
0 0 1 29 0
4:15 PM 0 0 0 0
0 0 7 0 0 04:00 PM 0 0 0 0 0 20 1
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
TotalUTLTTHRT
Date: 03/09/2021
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 0.0%0.33
TOTAL 12.6%0.83
TH RT
WB 8.6%0.84
NB 23.5%0.65
Peak Hour: 5:00 PM 6:00 PM
HV %:PHF
EB --
0
0
0
0 0 0
000
0
0
0
0
0
0 0
N
CR 315
I-70 WB RAMP
I-70 WB RAMP
CR
3
1
5
I-70 WB RAMP
CR
3
1
5
119TEV:
0.83PHF:
0 4 0
4 5
0
2
2
77
81
00
0331
3481
0
0
0
0
0
33 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
15 0
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
Total
Rolling
One Hour
1 0 0 0 0 0061007
RTTHLT RTTHLTRT
0 0 0 25 0
Peak Hour 0 0 0 0
0 0 9 1 0 0Count Total 0 0 0 0 0 13 2
4 15100000030000
0 0 0 5 13
5:45 PM 0 0 0 0
0 0 3 0 0 0
2 10
5:30 PM 0 0 0 0 0 1 1
0 0 0 0 0 0000002
0 0 0 4 11
5:15 PM 0 0 0 0
0 0 2 0 0 0
2 10
5:00 PM 0 0 0 0 0 2 0
0 0 0 0 0 0011000
0 0 0 2 0
4:45 PM 0 0 0 0
0 0 1 0 0 0
3 0
4:30 PM 0 0 0 0 0 1 0
0 0 0 0 0 0030000
0 0 0 3 0
4:15 PM 0 0 0 0
0 0 1 0 0 0
TH RT
4:00 PM 0 0 0 0 0 2 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
I-70 WB RAMP I-70 WB RAMP CR 315 CR 315 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
0
0
0
0
0
0
00000000
0 0
Peak Hour 4 0 13 9 26 0 0
0 0 0 0 0 0Count Total 5 0 21 16 42 0
0 0 00000008:45 AM 0 0 3 1 4
0 0 0 0 0 0
0
8:30 AM 1 0 1 1 3 0 0 0
0 0 0 0 0 0
0 0
8:15 AM 0 0 2 3 5 0 0
0 0 0 0 0 0
0 0 0
8:00 AM 1 0 1 2 4 0
0 0 0 0 0 0
0 0 0
0
7:30 AM 0 0 2 2 4 0 0 0
0 0 0 0 0 0
2 4 0
EB WB NB SB Total East
7:45 AM 2 0 7 3 12
0 0 0
--9%HV%-50%0%4%-
0 0
7:15 AM 1 0 3 2 6 0 0
0 0 0 0 0 0
West North South
7:00 AM 0 0 2
0
0 23 47 0 1 542300000
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
23%-0%17%-17%---
Peak
Hour
All 0 6 2
0 0 0 45 92 0
0 0 9 0 26 00000211
0 156 0
HV 0 3 0 1 0
Count Total 0 9 2 35 0 0 0 2 96 0 281 0
33 1316120090000000
0 14 0 34 148
8:45 AM 0 3 0 3
0 0 0 7 10 0
32 154
8:30 AM 0 0 0 3 0 0 0
3 11 0 0 14 0000000
0 16 0 32 156
8:15 AM 0 0 0 4
0 0 0 2 8 0
50 150
8:00 AM 0 1 1 4 0 0 0
6 14 0 0 19 0000000
0 11 0 40 0
7:45 AM 0 1 0 10
0 0 0 9 11 0
34 0
7:30 AM 0 1 1 7 0 0 0
6 14 0 1 8 0000000
1 5 0 26 0
7:15 AM 0 3 0 2
0 0 0 6 12 07:00 AM 0 0 0 2 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
TotalUTLTTHRT
Date: 03/10/2021
Peak Hour Count Period: 7:00 AM 9:00 AM
SB 16.4%0.72
TOTAL 16.7%0.78
TH RT
WB --
NB 18.6%0.88
Peak Hour: 7:15 AM 8:15 AM
HV %:PHF
EB 12.9%0.70
0
0
0
0 0 0
000
0
0
0
0
0
0 0
N
CR 315
I-70 EB RAMP
I-70 EB RAMP
CR
3
1
5
I-70 EB RAMP
CR
3
1
5
156TEV:
0.78PHF:
0 54 1
55 29
0
0
0
0
0
500
47230
7077
0
23
2
6
31
0 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
8:45 AM
0 0 0 0
0
8:30 AM
0000000
0 0
8:15 AM
0 0 0
0 0 0
0 0 0
0 0 0
0
8:00 AM
0000
0 0
7:45 AM
0 0 0 0
0
7:30 AM
00000007:15 AM 0
0 0
0 0 0
0 07:00 AM
RT
26 0
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
Total
Rolling
One Hour
2 11 0 0 9 0000000
RTTHLT RTTHLTRT
0 16 0 42 0
Peak Hour 0 3 0 1
0 0 0 4 17 0Count Total 0 3 0 2 0 0 0
4 16030010000000
0 1 0 3 24
8:45 AM 0 0 0 0
0 0 0 1 0 0
5 25
8:30 AM 0 0 0 1 0 0 0
0 2 0 0 3 0000000
0 2 0 4 26
8:15 AM 0 0 0 0
0 0 0 0 1 0
12 26
8:00 AM 0 1 0 0 0 0 0
2 5 0 0 3 0000000
0 2 0 4 0
7:45 AM 0 1 0 1
0 0 0 0 2 0
6 0
7:30 AM 0 0 0 0 0 0 0
0 3 0 0 2 0000000
0 2 0 4 0
7:15 AM 0 1 0 0
0 0 0 1 1 0
TH RT
7:00 AM 0 0 0 0 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
to
to
Two-Hour Count Summaries
Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count.
Total
0
0
0
0
0
0
0
0
0
00000000
0 0
Peak Hour 1 0 6 6 13 0 0
0 0 0 0 0 0Count Total 6 0 10 13 29 0
0 0 00000005:45 PM 1 0 1 2 4
0 0 0 0 0 0
0
5:30 PM 1 0 3 1 5 0 0 0
0 0 0 0 0 0
0 0
5:15 PM 0 0 2 1 3 0 0
0 0 0 0 0 0
0 0 0
5:00 PM 1 0 2 2 5 0
0 0 0 0 0 0
0 0 0
0
4:30 PM 0 0 2 2 4 0 0 0
0 0 0 0 0 0
1 3 0
EB WB NB SB Total East
4:45 PM 0 0 0 1 1
0 0 0
--14%HV%-0%-3%-
0 0
4:15 PM 1 0 0 3 4 0 0
0 0 0 0 0 0
West North South
4:00 PM 2 0 0
0
0 35 71 0 1 733000000
0
Interval
Start
Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg)
EB WB NB SB Total
1%-0%8%-6%---
Peak
Hour
All 0 3 0
0 0 0 60 106 0
0 0 6 0 13 0000051
0 213 0
HV 0 0 0 1 0
Count Total 0 9 0 55 0 0 0 2 152 0 384 0
44 1884900230000000
0 13 0 31 196
5:45 PM 0 2 0 6
0 0 0 6 5 0
56 213
5:30 PM 0 2 0 5 0 0 0
12 11 0 1 22 0000000
0 22 0 57 212
5:15 PM 0 1 0 9
0 0 0 7 20 0
52 196
5:00 PM 0 0 0 8 0 0 0
7 21 0 0 12 0000000
0 17 0 48 0
4:45 PM 0 2 0 10
0 0 0 9 19 0
55 0
4:30 PM 0 0 0 3 0 0 0
9 11 0 1 24 0000000
0 19 0 41 0
4:15 PM 0 1 0 9
0 0 0 6 10 04:00 PM 0 1 0 5 0 0 0
UT LT TH RT UT LT
Rolling
One HourEastboundWestboundNorthboundSouthbound
UT LT TH RT
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
TotalUTLTTHRT
Date: 03/09/2021
Peak Hour Count Period: 4:00 PM 6:00 PM
SB 8.1%0.80
TOTAL 6.1%0.93
TH RT
WB --
NB 5.7%0.95
Peak Hour: 4:30 PM 5:30 PM
HV %:PHF
EB 3.0%0.69
0
0
0
0 0 0
000
0
0
0
0
0
0 0
N
CR 315
I-70 EB RAMP
I-70 EB RAMP
CR
3
1
5
I-70 EB RAMP
CR
3
1
5
213TEV:
0.93PHF:
0 73 1
74 38
0
0
0
0
0
720
71350
10
6
10
3
0
30
0
3
33
0 0
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
www.idaxdata.com
Two-Hour Count Summaries - Heavy Vehicles
Two-Hour Count Summaries - Bikes
Note: U-Turn volumes for bikes are included in Left-Turn, if any.
0 0
0 0 0
0 0 0
0 0 0
0 0 0
000 0 0 0
000 0 0 0
0000
0
0
0
00
0
THLT
00000000
0
00
0
0
0 0 0
0 0 0
0
THLT
0000000
0 00000
0 0
0 0
Peak Hour
0 0Count Total
0
000000000
0 0
5:45 PM
0 0 0 0
0
5:30 PM
0000000
0 0
5:15 PM
0 0 0
0 0 0
0 0 0
0 0 0
0
5:00 PM
0000
0 0
4:45 PM
0 0 0 0
0
4:30 PM
00000004:15 PM 0
0 0
0 0 0
0 04:00 PM
RT
13 0
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
Total
Rolling
One Hour
5 1 0 0 6 0000000
RTTHLT RTTHLTRT
0 13 0 29 0
Peak Hour 0 0 0 1
0 0 0 7 3 0Count Total 0 3 0 3 0 0 0
4 17100020000000
0 1 0 5 14
5:45 PM 0 1 0 0
0 0 0 1 2 0
3 13
5:30 PM 0 1 0 0 0 0 0
2 0 0 0 1 0000000
0 2 0 5 14
5:15 PM 0 0 0 0
0 0 0 2 0 0
1 12
5:00 PM 0 0 0 1 0 0 0
0 0 0 0 1 0000000
0 2 0 4 0
4:45 PM 0 0 0 0
0 0 0 1 1 0
4 0
4:30 PM 0 0 0 0 0 0 0
0 0 0 0 3 0000000
0 1 0 3 0
4:15 PM 0 0 0 1
0 0 0 0 0 0
TH RT
4:00 PM 0 1 0 1 0 0 0
UT LT TH RT UT LT
Northbound Southbound
UT LT TH RT UT LT TH RT
Interval
Start
I-70 EB RAMP I-70 EB RAMP CR 315 CR 315 15-min
Total
Rolling
One HourEastboundWestbound
SouthboundNorthboundWestboundEastbound
Project Manager: (415) 310-6469 project.manager.ca@idaxdata.com
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit
APPENDIX B
Trip Generation Worksheets
Type of Material Sales Per Year Units Working Days Truck Capacity Units Round Trips Per Day
Aggregate 100,000 Tons 260 25 Tons 16
Kimley-Horn and Associates, Inc.
196171000 – North Hangs Pit
APPENDIX C
Intersection Analysis Worksheets
HCM 6th TWSC 2021 Existing AM.syn
1: CR-315 & CR-316/Frontage Rd 03/30/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 5.9
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 4 2 1 0 6 0 4 0 0 0
Future Vol, veh/h 0 0 4 2 1 0 6 0 4 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 43 43 43 43 92 43 92 43 92 92 92
Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2
Mvmt Flow 0 0 9 5 2 0 14 0 9 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 38 1 39 34 - 1 0 0 9 0 0
Stage 1 - 1 - 33 33 - - - - - - -
Stage 2 - 37 - 6 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.12 6.52 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.12 5.52 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.12 5.52 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.518 4.018 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 854 1084 966 859 0 1622 - - 1611 - -
Stage 1 0 895 - 983 868 0 - - - - - -
Stage 2 0 864 - 1016 895 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 846 1084 952 851 - 1622 - - 1611 - -
Mov Cap-2 Maneuver - 846 - 952 851 - - - - - - -
Stage 1 - 895 - 974 860 - - - - - - -
Stage 2 - 856 - 1007 895 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9 4.3 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 916 1611 - -
HCM Lane V/C Ratio 0.009 - - 0.009 0.008 - - -
HCM Control Delay (s)7.2 0 - 8.4 9 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - - 0 0 0 - -
HCM 6th TWSC 2021 Existing PM.syn
1: CR-315 & CR-316/Frontage Rd 03/30/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 7
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 4 0 2 0 3 0 1 0 0 0
Future Vol, veh/h 0 0 4 0 2 0 3 0 1 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 50 50 50 50 92 50 92 50 92 92 92
Heavy Vehicles, % 2 2 2 50 50 2 2 2 2 2 2 2
Mvmt Flow 0 0 8 0 4 0 6 0 2 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 15 1 18 14 - 1 0 0 2 0 0
Stage 1 - 1 - 13 13 - - - - - - -
Stage 2 - 14 - 5 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.6 7 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.6 6 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.6 6 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.95 4.45 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 879 1084 886 794 0 1622 - - 1620 - -
Stage 1 0 895 - 896 798 0 - - - - - -
Stage 2 0 884 - 906 808 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 875 1084 877 791 - 1622 - - 1620 - -
Mov Cap-2 Maneuver - 875 - 877 791 - - - - - - -
Stage 1 - 895 - 892 795 - - - - - - -
Stage 2 - 880 - 899 808 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.3 9.6 5.4 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 791 1620 - -
HCM Lane V/C Ratio 0.004 - - 0.007 0.005 - - -
HCM Control Delay (s)7.2 0 - 8.3 9.6 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - - 0 0 0 - -
HCM 6th TWSC 2025 Background AM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 5 5 5 0 10 0 5 0 0 0
Future Vol, veh/h 0 0 5 5 5 0 10 0 5 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 43 43 43 43 92 43 92 43 92 92 92
Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2
Mvmt Flow 0 0 12 12 12 0 23 0 12 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 59 1 59 53 - 1 0 0 12 0 0
Stage 1 - 1 - 52 52 - - - - - - -
Stage 2 - 58 - 7 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.12 6.52 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.12 5.52 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.12 5.52 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.518 4.018 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 832 1084 937 838 0 1622 - - 1607 - -
Stage 1 0 895 - 961 852 0 - - - - - -
Stage 2 0 847 - 1015 895 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 820 1084 917 826 - 1622 - - 1607 - -
Mov Cap-2 Maneuver - 820 - 917 826 - - - - - - -
Stage 1 - 895 - 948 840 - - - - - - -
Stage 2 - 835 - 1004 895 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.3 4.8 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 869 1607 - -
HCM Lane V/C Ratio 0.014 - - 0.011 0.027 - - -
HCM Control Delay (s)7.3 0 - 8.4 9.3 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - -0 0.1 0 - -
HCM 6th TWSC 2025 Background PM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 5 0 5 0 5 0 5 0 0 0
Future Vol, veh/h 0 0 5 0 5 0 5 0 5 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 50 50 50 50 92 50 92 50 92 92 92
Heavy Vehicles, % 2 2 2 50 50 2 2 2 2 2 2 2
Mvmt Flow 0 0 10 0 10 0 10 0 10 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 31 1 31 26 - 1 0 0 10 0 0
Stage 1 - 1 - 25 25 - - - - - - -
Stage 2 - 30 - 6 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.6 7 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.6 6 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.6 6 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.95 4.45 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 862 1084 868 782 0 1622 - - 1610 - -
Stage 1 0 895 - 883 788 0 - - - - - -
Stage 2 0 870 - 904 808 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 857 1084 856 777 - 1622 - - 1610 - -
Mov Cap-2 Maneuver - 857 - 856 777 - - - - - - -
Stage 1 - 895 - 878 783 - - - - - - -
Stage 2 - 865 - 896 808 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.7 3.6 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 777 1610 - -
HCM Lane V/C Ratio 0.006 - - 0.009 0.013 - - -
HCM Control Delay (s)7.2 0 - 8.4 9.7 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - - 0 0 0 - -
HCM 6th TWSC 2025 Total AM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 5.7
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 5 10 5 0 10 0 15 0 0 0
Future Vol, veh/h 0 0 5 10 5 0 10 0 15 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 43 43 43 43 92 43 92 43 92 92 92
Heavy Vehicles, % 2 2 2 42 2 2 2 2 10 2 2 2
Mvmt Flow 0 0 12 23 12 0 23 0 35 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 82 1 71 65 - 1 0 0 35 0 0
Stage 1 - 1 - 64 64 - - - - - - -
Stage 2 - 81 - 7 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.52 6.52 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.52 5.52 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.52 5.52 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.878 4.018 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 808 1084 831 826 0 1622 - - 1576 - -
Stage 1 0 895 - 856 842 0 - - - - - -
Stage 2 0 828 - 920 895 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 796 1084 813 814 - 1622 - - 1576 - -
Mov Cap-2 Maneuver - 796 - 813 814 - - - - - - -
Stage 1 - 895 - 843 829 - - - - - - -
Stage 2 - 816 - 910 895 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.6 2.9 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 813 1576 - -
HCM Lane V/C Ratio 0.014 - - 0.011 0.043 - - -
HCM Control Delay (s)7.3 0 - 8.4 9.6 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - -0 0.1 0 - -
HCM 6th TWSC 2025 Total PM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 5 10 5 0 5 0 10 0 0 0
Future Vol, veh/h 0 0 5 10 5 0 5 0 10 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 50 50 50 50 92 50 92 50 92 92 92
Heavy Vehicles, % 2 2 2 50 50 2 2 2 41 2 2 2
Mvmt Flow 0 0 10 20 10 0 10 0 20 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 41 1 36 31 - 1 0 0 20 0 0
Stage 1 - 1 - 30 30 - - - - - - -
Stage 2 - 40 - 6 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.6 7 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.6 6 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.6 6 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.95 4.45 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 851 1084 861 776 0 1622 - - 1596 - -
Stage 1 0 895 - 877 784 0 - - - - - -
Stage 2 0 862 - 904 808 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 846 1084 849 771 - 1622 - - 1596 - -
Mov Cap-2 Maneuver - 846 - 849 771 - - - - - - -
Stage 1 - 895 - 872 779 - - - - - - -
Stage 2 - 857 - 896 808 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.6 2.4 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 821 1596 - -
HCM Lane V/C Ratio 0.006 - - 0.009 0.037 - - -
HCM Control Delay (s)7.2 0 - 8.4 9.6 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 - -0 0.1 0 - -
HCM 6th TWSC 2040 Background AM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 10 5 5 0 10 0 10 0 0 0
Future Vol, veh/h 0 0 10 5 5 0 10 0 10 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 43 43 43 43 92 43 92 43 92 92 92
Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2
Mvmt Flow 0 0 23 12 12 0 23 0 23 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 70 1 71 59 - 1 0 0 23 0 0
Stage 1 - 1 - 58 58 - - - - - - -
Stage 2 - 69 - 13 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.12 6.52 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.12 5.52 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.12 5.52 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.518 4.018 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 821 1084 920 832 0 1622 - - 1592 - -
Stage 1 0 895 - 954 847 0 - - - - - -
Stage 2 0 837 - 1007 895 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 810 1084 891 820 - 1622 - - 1592 - -
Mov Cap-2 Maneuver - 810 - 891 820 - - - - - - -
Stage 1 - 895 - 941 835 - - - - - - -
Stage 2 - 825 - 985 895 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.3 3.6 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 854 1592 - -
HCM Lane V/C Ratio 0.014 - - 0.021 0.027 - - -
HCM Control Delay (s)7.3 0 - 8.4 9.3 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 -- 0.1 0.1 0 - -
HCM 6th TWSC 2040 Background PM.syn
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.6
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 10 0 5 0 5 0 5 0 0 0
Future Vol, veh/h 0 0 10 0 5 0 5 0 5 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 50 50 50 50 92 50 92 50 92 92 92
Heavy Vehicles, % 2 2 2 50 50 2 2 2 2 2 2 2
Mvmt Flow 0 0 20 0 10 0 10 0 10 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 31 1 36 26 - 1 0 0 10 0 0
Stage 1 - 1 - 25 25 - - - - - - -
Stage 2 - 30 - 11 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.6 7 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.6 6 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.6 6 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.95 4.45 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 862 1084 861 782 0 1622 - - 1610 - -
Stage 1 0 895 - 883 788 0 - - - - - -
Stage 2 0 870 - 899 808 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 857 1084 841 777 - 1622 - - 1610 - -
Mov Cap-2 Maneuver - 857 - 841 777 - - - - - - -
Stage 1 - 895 - 878 783 - - - - - - -
Stage 2 - 865 - 882 808 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.7 3.6 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 777 1610 - -
HCM Lane V/C Ratio 0.006 - - 0.018 0.013 - - -
HCM Control Delay (s)7.2 0 - 8.4 9.7 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 -- 0.1 0 0 - -
HCM 6th TWSC Scenario 1
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 5.4
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 10 10 5 0 10 0 20 0 0 0
Future Vol, veh/h 0 0 10 10 5 0 10 0 20 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 43 43 43 43 92 43 92 43 92 92 92
Heavy Vehicles, % 2 2 2 42 2 2 2 2 10 2 2 2
Mvmt Flow 0 0 23 23 12 0 23 0 47 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 94 1 83 71 - 1 0 0 47 0 0
Stage 1 - 1 - 70 70 - - - - - - -
Stage 2 - 93 - 13 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.52 6.52 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.52 5.52 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.52 5.52 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.878 4.018 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 796 1084 816 819 0 1622 - - 1560 - -
Stage 1 0 895 - 849 837 0 - - - - - -
Stage 2 0 818 - 913 895 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 784 1084 789 807 - 1622 - - 1560 - -
Mov Cap-2 Maneuver - 784 - 789 807 - - - - - - -
Stage 1 - 895 - 836 824 - - - - - - -
Stage 2 - 806 - 893 895 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.7 2.4 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 795 1560 - -
HCM Lane V/C Ratio 0.014 - - 0.021 0.044 - - -
HCM Control Delay (s)7.3 0 - 8.4 9.7 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 -- 0.1 0.1 0 - -
HCM 6th TWSC
1: CR-315 & CR-316/Frontage Rd 03/01/2023
Scenario 1 Baseline Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 6.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 10 10 5 0 5 0 10 0 0 0
Future Vol, veh/h 0 0 10 10 5 0 5 0 10 0 0 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 92 50 50 50 50 92 50 92 50 92 92 92
Heavy Vehicles, % 2 2 2 50 50 2 2 2 41 2 2 2
Mvmt Flow 0 0 20 20 10 0 10 0 20 0 0 0
Major/Minor Minor2 Minor1 Major1 Major2
Conflicting Flow All - 41 1 41 31 - 1 0 0 20 0 0
Stage 1 - 1 - 30 30 - - - - - - -
Stage 2 - 40 - 11 1 - - - - - - -
Critical Hdwy - 6.52 6.22 7.6 7 - 4.12 - - 4.12 - -
Critical Hdwy Stg 1 - 5.52 - 6.6 6 - - - - - - -
Critical Hdwy Stg 2 - 5.52 - 6.6 6 - - - - - - -
Follow-up Hdwy - 4.018 3.318 3.95 4.45 - 2.218 - - 2.218 - -
Pot Cap-1 Maneuver 0 851 1084 855 776 0 1622 - - 1596 - -
Stage 1 0 895 - 877 784 0 - - - - - -
Stage 2 0 862 - 899 808 0 - - - - - -
Platoon blocked, %- - - -
Mov Cap-1 Maneuver - 846 1084 835 771 - 1622 - - 1596 - -
Mov Cap-2 Maneuver - 846 - 835 771 - - - - - - -
Stage 1 - 895 - 872 779 - - - - - - -
Stage 2 - 857 - 882 808 - - - - - - -
Approach EB WB NB SB
HCM Control Delay, s 8.4 9.6 2.4 0
HCM LOS A A
Minor Lane/Major Mvmt NBL NBT NBREBLn1WBLn1 SBL SBT SBR
Capacity (veh/h)1622 - - 1084 813 1596 - -
HCM Lane V/C Ratio 0.006 - - 0.018 0.037 - - -
HCM Control Delay (s)7.2 0 - 8.4 9.6 0 - -
HCM Lane LOS A A - A A A - -
HCM 95th %tile Q(veh) 0 -- 0.1 0.1 0 - -
HCM 6th TWSC 2021 Existing AM.syn
2: CR-315 & I-70 WB Ramps 03/22/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 8.3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 57 4 1 28 3 0 0 0 4
Future Vol, veh/h 0 0 0 57 4 1 28 3 0 0 0 4
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 2 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, % 2 2 2 19 19 19 19 19 19 25 25 25
Mvmt Flow 0 0 0 73 5 1 36 4 0 0 0 5
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 79 81 4 5 0 - - - 0
Stage 1 76 76 - - - - - - -
Stage 2 3 5 - - - - - - -
Critical Hdwy 6.59 6.69 6.39 4.29 - - - - -
Critical Hdwy Stg 1 5.59 5.69 - - - - - - -
Critical Hdwy Stg 2 5.59 5.69 - - - - - - -
Follow-up Hdwy 3.671 4.171 3.471 2.371 - - - - -
Pot Cap-1 Maneuver 883 778 1032 1512 - 0 0 - -
Stage 1 906 800 - - - 0 0 - -
Stage 2 978 859 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 862 0 1032 1512 - - - - -
Mov Cap-2 Maneuver 862 0 - - - - - - -
Stage 1 884 0 - - - - - - -
Stage 2 978 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.6 6.7 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1512 - 864 - -
HCM Lane V/C Ratio 0.024 - 0.092 - -
HCM Control Delay (s)7.4 0 9.6 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.3 - -
HCM 6th TWSC 2021 Existing PM.syn
2: CR-315 & I-70 WB Ramps 03/22/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 8.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 77 2 2 31 3 0 0 4 0
Future Vol, veh/h 0 0 0 77 2 2 31 3 0 0 4 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 2 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 83 83 83 83 83 83 83 83 83 83 83 83
Heavy Vehicles, % 2 2 2 9 9 9 24 24 24 2 2 2
Mvmt Flow 0 0 0 93 2 2 37 4 0 0 5 0
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 83 83 4 5 0 - - - 0
Stage 1 78 78 - - - - - - -
Stage 2 5 5 - - - - - - -
Critical Hdwy 6.49 6.59 6.29 4.34 - - - - -
Critical Hdwy Stg 1 5.49 5.59 - - - - - - -
Critical Hdwy Stg 2 5.49 5.59 - - - - - - -
Follow-up Hdwy 3.581 4.081 3.381 2.416 - - - - -
Pot Cap-1 Maneuver 902 794 1059 1484 - 0 0 - -
Stage 1 928 817 - - - 0 0 - -
Stage 2 1000 878 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 879 0 1059 1484 - - - - -
Mov Cap-2 Maneuver 879 0 - - - - - - -
Stage 1 905 0 - - - - - - -
Stage 2 1000 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.6 6.8 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1484 - 883 - -
HCM Lane V/C Ratio 0.025 - 0.111 - -
HCM Control Delay (s)7.5 0 9.6 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.4 - -
HCM 6th TWSC 2025 Background AM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8.3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 65 5 5 35 5 0 0 0 5
Future Vol, veh/h 0 0 0 65 5 5 35 5 0 0 0 5
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, % 2 2 2 19 19 19 19 19 19 25 25 25
Mvmt Flow 0 0 0 83 6 6 45 6 0 0 0 6
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 99 102 6 6 0 - - - 0
Stage 1 96 96 - - - - - - -
Stage 2 3 6 - - - - - - -
Critical Hdwy 6.59 6.69 6.39 4.29 - - - - -
Critical Hdwy Stg 1 5.59 5.69 - - - - - - -
Critical Hdwy Stg 2 5.59 5.69 - - - - - - -
Follow-up Hdwy 3.671 4.171 3.471 2.371 - - - - -
Pot Cap-1 Maneuver 860 757 1029 1511 - 0 0 - -
Stage 1 887 784 - - - 0 0 - -
Stage 2 978 858 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 834 0 1029 1511 - - - - -
Mov Cap-2 Maneuver 834 0 - - - - - - -
Stage 1 860 0 - - - - - - -
Stage 2 978 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.8 6.5 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1511 - 845 - -
HCM Lane V/C Ratio 0.03 - 0.114 - -
HCM Control Delay (s)7.5 0 9.8 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.4 - -
HCM 6th TWSC 2025 Background PM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 85 5 5 35 5 0 0 5 0
Future Vol, veh/h 0 0 0 85 5 5 35 5 0 0 5 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 83 83 83 83 83 83 83 83 83 83 83 83
Heavy Vehicles, % 2 2 2 9 9 9 24 24 24 2 2 2
Mvmt Flow 0 0 0 102 6 6 42 6 0 0 6 0
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 96 96 6 6 0 - - - 0
Stage 1 90 90 - - - - - - -
Stage 2 6 6 - - - - - - -
Critical Hdwy 6.49 6.59 6.29 4.34 - - - - -
Critical Hdwy Stg 1 5.49 5.59 - - - - - - -
Critical Hdwy Stg 2 5.49 5.59 - - - - - - -
Follow-up Hdwy 3.581 4.081 3.381 2.416 - - - - -
Pot Cap-1 Maneuver 887 781 1057 1482 - 0 0 - -
Stage 1 916 807 - - - 0 0 - -
Stage 2 999 877 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 862 0 1057 1482 - - - - -
Mov Cap-2 Maneuver 862 0 - - - - - - -
Stage 1 890 0 - - - - - - -
Stage 2 999 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.8 6.6 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1482 - 871 - -
HCM Lane V/C Ratio 0.028 - 0.131 - -
HCM Control Delay (s)7.5 0 9.8 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.5 - -
HCM 6th TWSC 2025 Total AM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 7.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 65 5 10 35 10 0 0 5 10
Future Vol, veh/h 0 0 0 65 5 10 35 10 0 0 5 10
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, % 2 2 2 19 19 19 19 19 19 25 85 35
Mvmt Flow 0 0 0 83 6 13 45 13 0 0 6 13
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 116 122 13 19 0 - - - 0
Stage 1 103 103 - - - - - - -
Stage 2 13 19 - - - - - - -
Critical Hdwy 6.59 6.69 6.39 4.29 - - - - -
Critical Hdwy Stg 1 5.59 5.69 - - - - - - -
Critical Hdwy Stg 2 5.59 5.69 - - - - - - -
Follow-up Hdwy 3.671 4.171 3.471 2.371 - - - - -
Pot Cap-1 Maneuver 841 738 1020 1494 - 0 0 - -
Stage 1 880 778 - - - 0 0 - -
Stage 2 967 847 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 816 0 1020 1494 - - - - -
Mov Cap-2 Maneuver 816 0 - - - - - - -
Stage 1 854 0 - - - - - - -
Stage 2 967 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.9 5.8 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1494 - 838 - -
HCM Lane V/C Ratio 0.03 - 0.122 - -
HCM Control Delay (s)7.5 0 9.9 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.4 - -
HCM 6th TWSC 2025 Total PM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 7.8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 85 5 10 35 10 0 0 10 5
Future Vol, veh/h 0 0 0 85 5 10 35 10 0 0 10 5
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 83 83 83 83 83 83 83 83 83 83 83 83
Heavy Vehicles, % 2 2 2 9 9 49 24 44 24 2 8 17
Mvmt Flow 0 0 0 102 6 12 42 12 0 0 12 6
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 111 114 12 18 0 - - - 0
Stage 1 96 96 - - - - - - -
Stage 2 15 18 - - - - - - -
Critical Hdwy 6.49 6.59 6.69 4.34 - - - - -
Critical Hdwy Stg 1 5.49 5.59 - - - - - - -
Critical Hdwy Stg 2 5.49 5.59 - - - - - - -
Follow-up Hdwy 3.581 4.081 3.741 2.416 - - - - -
Pot Cap-1 Maneuver 869 763 947 1467 - 0 0 - -
Stage 1 911 802 - - - 0 0 - -
Stage 2 990 867 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 844 0 947 1467 - - - - -
Mov Cap-2 Maneuver 844 0 - - - - - - -
Stage 1 885 0 - - - - - - -
Stage 2 990 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 9.9 5.9 0
HCM LOS A
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1467 - 854 - -
HCM Lane V/C Ratio 0.029 - 0.141 - -
HCM Control Delay (s)7.5 0 9.9 - -
HCM Lane LOS A A A - -
HCM 95th %tile Q(veh)0.1 - 0.5 - -
HCM 6th TWSC 2040 Background AM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 85 10 5 45 5 0 0 0 10
Future Vol, veh/h 0 0 0 85 10 5 45 5 0 0 0 10
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, % 2 2 2 19 19 19 19 19 19 25 25 25
Mvmt Flow 0 0 0 109 13 6 58 6 0 0 0 13
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 129 135 6 13 0 - - - 0
Stage 1 122 122 - - - - - - -
Stage 2 7 13 - - - - - - -
Critical Hdwy 6.59 6.69 6.39 4.29 - - - - -
Critical Hdwy Stg 1 5.59 5.69 - - - - - - -
Critical Hdwy Stg 2 5.59 5.69 - - - - - - -
Follow-up Hdwy 3.671 4.171 3.471 2.371 - - - - -
Pot Cap-1 Maneuver 826 725 1029 1501 - 0 0 - -
Stage 1 863 763 - - - 0 0 - -
Stage 2 974 852 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 794 0 1029 1501 - - - - -
Mov Cap-2 Maneuver 794 0 - - - - - - -
Stage 1 829 0 - - - - - - -
Stage 2 974 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 10.3 6.7 0
HCM LOS B
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1501 - 804 - -
HCM Lane V/C Ratio 0.038 - 0.159 - -
HCM Control Delay (s)7.5 0 10.3 - -
HCM Lane LOS A A B - -
HCM 95th %tile Q(veh)0.1 - 0.6 - -
HCM 6th TWSC 2040 Background PM.syn
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8.8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 115 5 5 50 5 0 0 10 0
Future Vol, veh/h 0 0 0 115 5 5 50 5 0 0 10 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 83 83 83 83 83 83 83 83 83 83 83 83
Heavy Vehicles, % 2 2 2 9 9 9 24 24 24 2 2 2
Mvmt Flow 0 0 0 139 6 6 60 6 0 0 12 0
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 138 138 6 12 0 - - - 0
Stage 1 126 126 - - - - - - -
Stage 2 12 12 - - - - - - -
Critical Hdwy 6.49 6.59 6.29 4.34 - - - - -
Critical Hdwy Stg 1 5.49 5.59 - - - - - - -
Critical Hdwy Stg 2 5.49 5.59 - - - - - - -
Follow-up Hdwy 3.581 4.081 3.381 2.416 - - - - -
Pot Cap-1 Maneuver 839 740 1057 1475 - 0 0 - -
Stage 1 883 778 - - - 0 0 - -
Stage 2 993 872 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 805 0 1057 1475 - - - - -
Mov Cap-2 Maneuver 805 0 - - - - - - -
Stage 1 847 0 - - - - - - -
Stage 2 993 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 10.4 6.9 0
HCM LOS B
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1475 - 813 - -
HCM Lane V/C Ratio 0.041 - 0.185 - -
HCM Control Delay (s)7.5 0 10.4 - -
HCM Lane LOS A A B - -
HCM 95th %tile Q(veh)0.1 - 0.7 - -
HCM 6th TWSC Scenario 1
2: CR-315 & I-70 WB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 85 10 10 45 10 0 0 5 15
Future Vol, veh/h 0 0 0 85 10 10 45 10 0 0 5 15
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, % 2 2 2 19 19 19 19 19 19 25 85 35
Mvmt Flow 0 0 0 109 13 13 58 13 0 0 6 19
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 145 154 13 25 0 - - - 0
Stage 1 129 129 - - - - - - -
Stage 2 16 25 - - - - - - -
Critical Hdwy 6.59 6.69 6.39 4.29 - - - - -
Critical Hdwy Stg 1 5.59 5.69 - - - - - - -
Critical Hdwy Stg 2 5.59 5.69 - - - - - - -
Follow-up Hdwy 3.671 4.171 3.471 2.371 - - - - -
Pot Cap-1 Maneuver 809 708 1020 1486 - 0 0 - -
Stage 1 857 758 - - - 0 0 - -
Stage 2 964 842 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 777 0 1020 1486 - - - - -
Mov Cap-2 Maneuver 777 0 - - - - - - -
Stage 1 824 0 - - - - - - -
Stage 2 964 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 10.4 6.2 0
HCM LOS B
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1486 - 797 - -
HCM Lane V/C Ratio 0.039 - 0.169 - -
HCM Control Delay (s)7.5 0 10.4 - -
HCM Lane LOS A A B - -
HCM 95th %tile Q(veh)0.1 - 0.6 - -
HCM 6th TWSC
2: CR-315 & I-70 WB Ramps 03/01/2023
Scenario 1 Baseline Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 8.4
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 0 0 0 115 5 10 50 10 0 0 15 5
Future Vol, veh/h 0 0 0 115 5 10 50 10 0 0 15 5
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Free Free Free Stop Stop Stop Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 1 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 83 83 83 83 83 83 83 83 83 83 83 83
Heavy Vehicles, % 2 2 2 9 9 49 24 44 24 2 8 17
Mvmt Flow 0 0 0 139 6 12 60 12 0 0 18 6
Major/Minor Minor1 Major1 Major2
Conflicting Flow All 153 156 12 24 0 - - - 0
Stage 1 132 132 - - - - - - -
Stage 2 21 24 - - - - - - -
Critical Hdwy 6.49 6.59 6.69 4.34 - - - - -
Critical Hdwy Stg 1 5.49 5.59 - - - - - - -
Critical Hdwy Stg 2 5.49 5.59 - - - - - - -
Follow-up Hdwy 3.581 4.081 3.741 2.416 - - - - -
Pot Cap-1 Maneuver 823 723 947 1459 - 0 0 - -
Stage 1 877 774 - - - 0 0 - -
Stage 2 984 861 - - - 0 0 - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 789 0 947 1459 - - - - -
Mov Cap-2 Maneuver 789 0 - - - - - - -
Stage 1 841 0 - - - - - - -
Stage 2 984 0 - - - - - - -
Approach WB NB SB
HCM Control Delay, s 10.6 6.3 0
HCM LOS B
Minor Lane/Major Mvmt NBL NBTWBLn1 SBT SBR
Capacity (veh/h)1459 - 800 - -
HCM Lane V/C Ratio 0.041 - 0.196 - -
HCM Control Delay (s)7.6 0 10.6 - -
HCM Lane LOS A A B - -
HCM 95th %tile Q(veh)0.1 - 0.7 - -
HCM 6th TWSC 2021 Existing AM.syn
3: CR-315 & I-70 EB Ramps 03/22/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 1.8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 6 2 23 0 0 0 0 23 47 1 54 0
Future Vol, veh/h 6 2 23 0 0 0 0 23 47 1 54 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 16979 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, %13 13 13 2 2 2 19 19 19 16 16 16
Mvmt Flow 8 3 29 0 0 0 0 29 60 1 69 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 130 160 69 - 0 0 89 0 0
Stage 1 71 71 -- - - - - -
Stage 2 59 89 -- - - - - -
Critical Hdwy 6.53 6.63 6.33 - - - 4.26 - -
Critical Hdwy Stg 1 5.53 5.63 -- - - - - -
Critical Hdwy Stg 2 5.53 5.63 -- - - - - -
Follow-up Hdwy 3.617 4.117 3.417 - - - 2.344 - -
Pot Cap-1 Maneuver 839 713 964 0 - - 1423 - 0
Stage 1 925 815 -0 - - - - 0
Stage 2 936 800 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 838 0 964 - - - 1423 - -
Mov Cap-2 Maneuver 838 0 -- - - - - -
Stage 1 925 0 -- - - - - -
Stage 2 935 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9 0 0.1
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 935 1423 -
HCM Lane V/C Ratio -- 0.043 0.001 -
HCM Control Delay (s) - -9 7.5 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.1 0 -
HCM 6th TWSC 2021 Existing PM.syn
3: CR-315 & I-70 EB Ramps 03/22/2021
Synchro 10 Report
Page 1
Intersection
Int Delay, s/veh 1.4
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 3 0 30 0 0 0 0 35 71 1 73 0
Future Vol, veh/h 3 0 30 0 0 0 0 35 71 1 73 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 16979 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 93 93 93 93 93 93 93 93 93 93 93 93
Heavy Vehicles, % 3 3 3 2 2 2 6 6 6 8 8 8
Mvmt Flow 3 0 32 0 0 0 0 38 76 1 78 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 156 194 78 - 0 0 114 0 0
Stage 1 80 80 -- - - - - -
Stage 2 76 114 -- - - - - -
Critical Hdwy 6.43 6.53 6.23 - - - 4.18 - -
Critical Hdwy Stg 1 5.43 5.53 -- - - - - -
Critical Hdwy Stg 2 5.43 5.53 -- - - - - -
Follow-up Hdwy 3.527 4.027 3.327 - - - 2.272 - -
Pot Cap-1 Maneuver 833 699 980 0 - - 1439 - 0
Stage 1 941 826 -0 - - - - 0
Stage 2 944 799 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 832 0 980 - - - 1439 - -
Mov Cap-2 Maneuver 832 0 -- - - - - -
Stage 1 941 0 -- - - - - -
Stage 2 943 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 8.9 0 0.1
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 964 1439 -
HCM Lane V/C Ratio -- 0.037 0.001 -
HCM Control Delay (s) -- 8.9 7.5 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.1 0 -
HCM 6th TWSC 2025 Background AM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 2.2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 10 5 25 0 0 0 0 25 55 5 60 0
Future Vol, veh/h 10 5 25 0 0 0 0 25 55 5 60 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, %13 13 13 2 2 2 19 19 19 16 16 16
Mvmt Flow 13 6 32 0 0 0 0 32 71 6 77 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 157 192 77 - 0 0 103 0 0
Stage 1 89 89 -- - - - - -
Stage 2 68 103 -- - - - - -
Critical Hdwy 6.53 6.63 6.33 - - - 4.26 - -
Critical Hdwy Stg 1 5.53 5.63 -- - - - - -
Critical Hdwy Stg 2 5.53 5.63 -- - - - - -
Follow-up Hdwy 3.617 4.117 3.417 - - - 2.344 - -
Pot Cap-1 Maneuver 809 684 954 0 - - 1406 - 0
Stage 1 908 800 -0 - - - - 0
Stage 2 928 789 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 806 0 954 - - - 1406 - -
Mov Cap-2 Maneuver 806 0 -- - - - - -
Stage 1 908 0 -- - - - - -
Stage 2 924 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.2 0 0.6
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 906 1406 -
HCM Lane V/C Ratio -- 0.057 0.005 -
HCM Control Delay (s) -- 9.2 7.6 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
HCM 6th TWSC 2025 Background PM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 1.6
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 5 0 35 0 0 0 0 40 80 5 80 0
Future Vol, veh/h 5 0 35 0 0 0 0 40 80 5 80 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 93 93 93 93 93 93 93 93 93 93 93 93
Heavy Vehicles, % 3 3 3 2 2 2 6 6 6 8 8 8
Mvmt Flow 5 0 38 0 0 0 0 43 86 5 86 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 182 225 86 - 0 0 129 0 0
Stage 1 96 96 -- - - - - -
Stage 2 86 129 -- - - - - -
Critical Hdwy 6.43 6.53 6.23 - - - 4.18 - -
Critical Hdwy Stg 1 5.43 5.53 -- - - - - -
Critical Hdwy Stg 2 5.43 5.53 -- - - - - -
Follow-up Hdwy 3.527 4.027 3.327 - - - 2.272 - -
Pot Cap-1 Maneuver 805 672 970 0 - - 1420 - 0
Stage 1 925 814 -0 - - - - 0
Stage 2 935 787 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 802 0 970 - - - 1420 - -
Mov Cap-2 Maneuver 802 0 -- - - - - -
Stage 1 925 0 -- - - - - -
Stage 2 931 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9 0 0.4
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 945 1420 -
HCM Lane V/C Ratio -- 0.046 0.004 -
HCM Control Delay (s) - -9 7.5 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.1 0 -
HCM 6th TWSC 2025 Total AM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 2.6
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 15 5 25 0 0 0 0 25 55 10 60 0
Future Vol, veh/h 15 5 25 0 0 0 0 25 55 10 60 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, %14 13 13 2 2 2 19 19 19 50 16 16
Mvmt Flow 19 6 32 0 0 0 0 32 71 13 77 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 171 206 77 - 0 0 103 0 0
Stage 1 103 103 -- - - - - -
Stage 2 68 103 -- - - - - -
Critical Hdwy 6.54 6.63 6.33 - -- 4.6 - -
Critical Hdwy Stg 1 5.54 5.63 -- - - - - -
Critical Hdwy Stg 2 5.54 5.63 -- - - - - -
Follow-up Hdwy 3.626 4.117 3.417 - - - 2.65 - -
Pot Cap-1 Maneuver 792 672 954 0 - - 1237 - 0
Stage 1 892 789 -0 - - - - 0
Stage 2 925 789 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 783 0 954 - - - 1237 - -
Mov Cap-2 Maneuver 783 0 -- - - - - -
Stage 1 892 0 -- - - - - -
Stage 2 915 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.4 0 1.1
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 882 1237 -
HCM Lane V/C Ratio -- 0.065 0.01 -
HCM Control Delay (s) -- 9.4 7.9 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
HCM 6th TWSC 2025 Total PM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 1.9
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 10 0 35 0 0 0 0 40 80 10 80 0
Future Vol, veh/h 10 0 35 0 0 0 0 40 80 10 80 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 93 93 93 93 93 93 93 93 93 93 93 93
Heavy Vehicles, %22 3 3 2 2 2 6 6 6 12 8 8
Mvmt Flow 11 0 38 0 0 0 0 43 86 11 86 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 194 237 86 - 0 0 129 0 0
Stage 1 108 108 -- - - - - -
Stage 2 86 129 -- - - - - -
Critical Hdwy 6.62 6.53 6.23 - - - 4.22 - -
Critical Hdwy Stg 1 5.62 5.53 -- - - - - -
Critical Hdwy Stg 2 5.62 5.53 -- - - - - -
Follow-up Hdwy 3.698 4.027 3.327 - - - 2.308 - -
Pot Cap-1 Maneuver 752 662 970 0 - - 1397 - 0
Stage 1 869 804 -0 - - - - 0
Stage 2 889 787 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 746 0 970 - - - 1397 - -
Mov Cap-2 Maneuver 746 0 -- - - - - -
Stage 1 869 0 -- - - - - -
Stage 2 882 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.2 0 0.8
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 909 1397 -
HCM Lane V/C Ratio -- 0.053 0.008 -
HCM Control Delay (s) -- 9.2 7.6 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
HCM 6th TWSC 2040 Background AM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 2.1
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 10 5 35 0 0 0 0 35 70 5 80 0
Future Vol, veh/h 10 5 35 0 0 0 0 35 70 5 80 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, %13 13 13 2 2 2 19 19 19 16 16 16
Mvmt Flow 13 6 45 0 0 0 0 45 90 6 103 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 205 250 103 - 0 0 135 0 0
Stage 1 115 115 -- - - - - -
Stage 2 90 135 -- - - - - -
Critical Hdwy 6.53 6.63 6.33 - - - 4.26 - -
Critical Hdwy Stg 1 5.53 5.63 -- - - - - -
Critical Hdwy Stg 2 5.53 5.63 -- - - - - -
Follow-up Hdwy 3.617 4.117 3.417 - - - 2.344 - -
Pot Cap-1 Maneuver 759 634 923 0 - - 1367 - 0
Stage 1 883 780 -0 - - - - 0
Stage 2 907 764 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 755 0 923 - - - 1367 - -
Mov Cap-2 Maneuver 755 0 -- - - - - -
Stage 1 883 0 -- - - - - -
Stage 2 902 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.4 0 0.4
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 880 1367 -
HCM Lane V/C Ratio -- 0.073 0.005 -
HCM Control Delay (s) -- 9.4 7.6 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
HCM 6th TWSC 2040 Background PM.syn
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 1.5
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 5 0 45 0 0 0 0 55 105 5 110 0
Future Vol, veh/h 5 0 45 0 0 0 0 55 105 5 110 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 93 93 93 93 93 93 93 93 93 93 93 93
Heavy Vehicles, % 3 3 3 2 2 2 6 6 6 8 8 8
Mvmt Flow 5 0 48 0 0 0 0 59 113 5 118 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 244 300 118 - 0 0 172 0 0
Stage 1 128 128 -- - - - - -
Stage 2 116 172 -- - - - - -
Critical Hdwy 6.43 6.53 6.23 - - - 4.18 - -
Critical Hdwy Stg 1 5.43 5.53 -- - - - - -
Critical Hdwy Stg 2 5.43 5.53 -- - - - - -
Follow-up Hdwy 3.527 4.027 3.327 - - - 2.272 - -
Pot Cap-1 Maneuver 742 611 931 0 - - 1369 - 0
Stage 1 895 788 -0 - - - - 0
Stage 2 906 755 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 739 0 931 - - - 1369 - -
Mov Cap-2 Maneuver 739 0 -- - - - - -
Stage 1 895 0 -- - - - - -
Stage 2 902 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.2 0 0.3
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 907 1369 -
HCM Lane V/C Ratio -- 0.059 0.004 -
HCM Control Delay (s) -- 9.2 7.6 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
HCM 6th TWSC Scenario 1
3: CR-315 & I-70 EB Ramps 03/01/2023
Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 2.4
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 15 5 35 0 0 0 0 35 70 10 80 0
Future Vol, veh/h 15 5 35 0 0 0 0 35 70 10 80 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 78 78 78 78 78 78 78 78 78 78 78 78
Heavy Vehicles, %14 13 13 2 2 2 19 19 19 50 16 16
Mvmt Flow 19 6 45 0 0 0 0 45 90 13 103 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 219 264 103 - 0 0 135 0 0
Stage 1 129 129 -- - - - - -
Stage 2 90 135 -- - - - - -
Critical Hdwy 6.54 6.63 6.33 - -- 4.6 - -
Critical Hdwy Stg 1 5.54 5.63 -- - - - - -
Critical Hdwy Stg 2 5.54 5.63 -- - - - - -
Follow-up Hdwy 3.626 4.117 3.417 - - - 2.65 - -
Pot Cap-1 Maneuver 743 623 923 0 - - 1201 - 0
Stage 1 868 769 -0 - - - - 0
Stage 2 904 764 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 735 0 923 - - - 1201 - -
Mov Cap-2 Maneuver 735 0 -- - - - - -
Stage 1 868 0 -- - - - - -
Stage 2 894 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.6 0 0.9
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 857 1201 -
HCM Lane V/C Ratio -- 0.082 0.011 -
HCM Control Delay (s) -- 9.6 8 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.3 0 -
HCM 6th TWSC
3: CR-315 & I-70 EB Ramps 03/01/2023
Scenario 1 Baseline Synchro 11 Report
Page 1
Intersection
Int Delay, s/veh 1.8
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Vol, veh/h 10 0 45 0 0 0 0 55 105 10 110 0
Future Vol, veh/h 10 0 45 0 0 0 0 55 105 10 110 0
Conflicting Peds, #/hr 0 0 0 0 0 0 0 0 0 0 0 0
Sign Control Stop Stop Stop Free Free Free Free Free Free Free Free Free
RT Channelized - - None - - None - - None - - None
Storage Length - - - - - - - - - - - -
Veh in Median Storage, # - 0 - - 0 - - 0 - - 0 -
Grade, %- 0 - - 0 - - 0 - - 0 -
Peak Hour Factor 93 93 93 93 93 93 93 93 93 93 93 93
Heavy Vehicles, %22 3 3 2 2 2 6 6 6 12 8 8
Mvmt Flow 11 0 48 0 0 0 0 59 113 11 118 0
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 256 312 118 - 0 0 172 0 0
Stage 1 140 140 -- - - - - -
Stage 2 116 172 -- - - - - -
Critical Hdwy 6.62 6.53 6.23 - - - 4.22 - -
Critical Hdwy Stg 1 5.62 5.53 -- - - - - -
Critical Hdwy Stg 2 5.62 5.53 -- - - - - -
Follow-up Hdwy 3.698 4.027 3.327 - - - 2.308 - -
Pot Cap-1 Maneuver 691 601 931 0 - - 1347 - 0
Stage 1 840 779 -0 - - - - 0
Stage 2 862 755 -0 - - - - 0
Platoon blocked, %- - -
Mov Cap-1 Maneuver 685 0 931 - - - 1347 - -
Mov Cap-2 Maneuver 685 0 -- - - - - -
Stage 1 840 0 -- - - - - -
Stage 2 854 0 -- - - - - -
Approach EB NB SB
HCM Control Delay, s 9.4 0 0.6
HCM LOS A
Minor Lane/Major Mvmt NBT NBREBLn1 SBL SBT
Capacity (veh/h)- - 874 1347 -
HCM Lane V/C Ratio -- 0.068 0.008 -
HCM Control Delay (s) -- 9.4 7.7 0
HCM Lane LOS - - A A A
HCM 95th %tile Q(veh) -- 0.2 0 -
COLORADO DEPARTMENT OF TRANSPORTATION
STATE HIGHWAY ACCESS PERMIT APPLICATION
Issuing authority application
acceptance date:
Page 1 of 2 CDOT Form #137 01/10Previous editions are obsolete and may not be used
Instructions:- Contact the Colorado Department of Transportation (CDOT) or your local government to determine your issuing authority.
- Contact the issuing authority to determine what plans and other documents are required to be submitted with your application.
- Complete this form (some questions may not apply to you) and attach all necessary documents and Submit it to the issuing authority.
- Submit an application for each access affected.
- If you have any questions contact the issuing authority.
- For additional information see CDOT’s Access Management website at http://www.dot.state.co.us/AccessPermits/index.htm
2) Applicant or Agent for permittee (if different from property owner)
Street address
Phone #
Mailing address
City, state & zip Phone # (required)
county subdivision block lot section township range
6) What side of the highway?
N S E W
5) What State Highway are you requesting access from?
4) Legal description of property: If within jurisdictional limits of Municipality, city and/or County, which one?
3) Address of property to be served by permit (required)
City, state & zip
1) Property owner (Permittee)
8) What is the approximate date you intend to begin construction?
9) Check here if you are requesting a:
new access temporary access (duration anticipated: ) improvement to existing access
change in access use removal of access relocation of an existing access (provide detail)
7) How many feet is the proposed access from the nearest mile post?
_____________ feet ( N S E W) from:_____________
13) Are there other existing or dedicated public streets, roads, highways or access easements bordering or within the property?
no yes, if yes - list them on your plans and indicate the proposed and existing access points.
12) Does the property owner own or have any interests in any adjacent property?
no yes, if yes - please describe:
11) Do you have knowledge of any State Highway access permits serving this property, or adjacent properties in which you have a property interest?
no yes, if yes - what are the permit number(s) and provide copies:and/or, permit date:
15) If you are requesting commercial or industrial access please indicate the types and number of businesses and provide the floor area square footage of each.
business/land use square footage business square footage
16) If you are requesting residential developement access, what is the type (single family, apartment, townhouse) and number of units?
type number of units type number of units
17) Provide the following vehicle count estimates for vehicles that will use the access. Leaving the property then returning is two counts.
# of passenger cars and light trucks at peak hour volumes # of multi unit trucks at peak hour volumes
# of single unit vehicles in excess of 30 ft.# of farm vehicles (field equipment)Total count of all vehicles
How many feet is the proposed access from the nearest cross street?
_____________ feet ( N S E W) from:_______________________________
10) Provide existing property use
14) If you are requesting agricultural field access - how many acres will the access serve?
E-mail address E-mail address if available
Indicate if your counts are
peak hour volumes or average daily volumes.
Please print
or type
If an access permit is issued to you, it will state the terms and conditions for its use. Any changes in the use of the
permitted access not consistent with the terms and conditions listed on the permit may be considered a violation of the
permit.
The applicant declares under penalty of perjury in the second degree, and any other applicable state or federal
laws, that all information provided on this form and submitted attachments are to the best of their knowledge
true and complete.
I understand receipt of an access permit does not constitute permission to start access construction work.
Applicant or Agent for Permittee signature Date
Property owner signature Date
If the applicant is not the owner of the property, we require this application also to be signed by the property owner or
their legally authorized representative (or other acceptable written evidence). This signature shall constitute agreement
with this application by all owners-of-interest unless stated in writing. If a permit is issued, the property owner, in most
cases, will be listed as the permittee.
Page 2 of 2 CDOT Form #137 01/10
Print name
Print name
Previous editions are obsolete and may not be used
18) Check with the issuing authority to determine which of the following documents are required to complete the review of your application.
a) Property map indicating other access, bordering roads and streets.
b)Highway and driveway plan profile.
c)Drainage plan showing impact to the highway right-of-way.
d)Map and letters detailing utility locations before and after
development in and along the right-of-way.
e)Subdivision, zoning, or development plan.
f)Proposed access design.
g)Parcel and ownership maps including easements.
h)Traffic studies.
i)Proof of ownership.
1- It is the applicant’s responsibility to contact appropriate agencies and obtain all environmental clearances that apply
to their activities. Such clearances may include Corps of Engineers 404 Permits or Colorado Discharge Permit System
permits, or ecological, archeological, historical or cultural resource clearances. The CDOT Environmental Clearances
Information Summary presents contact information for agencies administering certain clearances, information about
prohibited discharges, and may be obtained from Regional CDOT Utility/Special Use Permit offices or accessed via the
CDOT Planning/Construction-Environmental-Guidance webpage http://www.dot.state.co.us/environmental/Forms.asp.
2- All workers within the State Highway right of way shall comply with their employer’s safety and health policies/
procedures, and all applicable U.S. Occupational Safety and Health Administration (OSHA) regulations - including, but not
limited to the applicable sections of 29 CFR Part 1910 - Occupational Safety and Health Standards and 29 CFR Part 1926
- Safety and Health Regulations for Construction.
Personal protective equipment (e.g. head protection, footwear, high visibility apparel, safety glasses, hearing protection,
respirators, gloves, etc.) shall be worn as appropriate for the work being performed, and as specified in regulation. At a
minimum, all workers in the State Highway right of way, except when in their vehicles, shall wear the following personal
protective equipment: High visibility apparel as specified in the Traffic Control provisions of the documentation
accompanying the Notice to Proceed related to this permit (at a minimum, ANSI/ISEA 107-1999, class 2); head protection
that complies with the ANSI Z89.1-1997 standard; and at all construction sites or whenever there is danger of injury to
feet, workers shall comply with OSHA’s PPE requirements for foot protection per 29 CFR 1910.136, 1926.95, and
1926.96. If required, such footwear shall meet the requirements of ANSI Z41-1999.
Where any of the above-referenced ANSI standards have been revised, the most recent version of the standard shall
apply.
3- The Permittee is responsible for complying with the Revised Guidelines that have been adopted by the Access Board
under the American Disabilities Act (ADA). These guidelines define traversable slope requirements and prescribe the
use of a defined pattern of truncated domes as detectable warnings at street crossings. The new Standards Plans and
can be found on the Design and Construction Project Support web page at:
<http://www.dot.state.co.us/DesignSupport/>, then click on Design Bulletins.
INSTRUCTIONS FOR COMPLETING APPLICATION FOR ACCESS PERMIT
(CDOT FORM NO. 137)
January 2010
To construct, relocate, close, or modify access(es) to a State Highway or when there are changes in use of
such access point(s), an application for access permit must be submitted to the Colorado Department of
Transportation (CDOT) or the local jurisdiction serving as the issuing authority for State Highway Access
Permits. Contact the CDOT Regional Access Unit in which the subject property is located to determine
where the application must be submitted. The following link will help you determine which CDOT Region
office to contact:
http://www.dot.state.co.us/AccessPermits/PDF/Region_Address_and_Map.pdf
All applications are processed and access permits are issued in accordance to the requirements and
procedures found in the most current version of the State Highway Access Code (Access Code). Copies
of the Access Code and the application form are available from the CDOT Headquarters, Access Unit
located at 4201 East Arkansas Avenue, Denver, CO 80222 and in each of the six Regional CDOT offices.
The locations of CDOT Regional Offices, the Access Code and the application form are also available
from CDOT’s web site at:
http://www.dot.state.co.us/AccessPermits/index.htm
Please complete all information requested accurately. Access permits granted based on applications found
to contain false information may be revoked. An incomplete application will not be accepted. If additional
information, plans and documents are required, attach them to the application. Keep a copy of your
submittal for your records. Please note that only the original signed copy of the application will be accepted.
Do not send or enclose any permit fee at this time. A permit fee will be collected if an access permit is
issued. The following is a brief description of the information to be provided on each enumerated space on
the application form (CDOT Form 137, 2010).
1.Property Owner (Permittee): Please provide the full name, mailing address and telephone
number and the E-mail address (if available) of the legal property owner (owner of the surface rights).
Please provide a telephone number where the Permittee can be reached during business hours (8:00
a.m. to 5:00 p.m.). Having a contract on the property is not a sufficient legal right to that property for
purposes of this application. If the access is to be on or across an access easement, then a copy of the
easement MUST accompany this application. If federal land is involved, provide the name of the
relevant federal agency AND attach copy of federal authorization for property use.
2.Agent for permittee: If the applicant (person completing this application) is different than the
property owner (Permittee), provide entity name (if applicable), the full name of the person serving as
the Agent, mailing address, telephone number, and the E-mail address (if available). Please provide a
telephone number where the Agent can be reached during business hours (8:00 a.m. to 5:00 p.m.).
Joint applications such as owner/lessee may be submitted. Corporations must be licensed to do business
in Colorado: All corporations serving as, or providing, an Agent as the applicant must be licensed to do
business in Colorado.
Instructions for completing Application for Access Permit (CDOT Form #137), January 2010
Page 1
3.Address of Property to be Served: Provide if property to be served has an official street
address. If the access is a public road, note the name (or future name) of the road.
4.Legal Description of Property: Fill in this item to the extent it applies. This information is
available at your local County Courthouse, or on your ownership deed(s). A copy of the deed may be
required as part of this application in some situations. To determine applicability, check with the
CDOT’s Regional Access Manager or issuing authority staff.
5.State Highway: Provide the State Highway number from which the access is requested.
6.Highway Side: Mark the appropriate box to indicate what side of the highway the requested
access is located.
7.Access Mile Point: Without complete information, we may not be able to locate the proposed
access. To obtain the distance in feet, drive the length between the mile point and the proposed access,
rounding the distance on the odometer to the nearest tenth of a mile; multiply the distance by 5,280 feet
to obtain the number of feet from the mile point. Then enter the direction (i.e. north, south, east, west)
from the mile point to the proposed access. Finally, enter the mile point number. It is helpful in rural or
undeveloped areas if some flagging is tied to the right-of-way fence at the desired location of the access.
Also, if there is a cross street or road close to the proposed access, note the distance in feet (using the
same procedures noted above) from that cross street or road.
8.Access Construction Date: Fill in the date on which construction of the access is planned to
begin.
9.Access Request: Mark items that apply. More than one item may be checked.
10.Existing property use: Describe how the property is currently being used. For example,
common uses are Single Family Residential, Commercial or Agricultural.
11.Existing Access: Does the property have any other legal alternatives to reach a public
road other than the access requested in this application? Note the access permit number(s) for any
existing state highway access point(s) along with their issue date(s). If there are no existing access
point(s), mark the “no” box.
12.Adjacent Property: Please mark the appropriate box. If the “yes” box is marked, provide a
brief description of the property (location of the property in relation to the property for which this
access application is being made).
13.Abutting Streets: If there are any other existing or proposed public roads or easements
abutting the property, they should be shown on a map or plan attached to this application.
14.Agricultural Acres: Provide number of acres to be served.
Instructions for completing Application for Access Permit (CDOT Form #137), January 2010
Page 2
15.Access Use: List the land uses and square footage of the site as it will be when it is fully
developed. The planned land uses as they will be when the site is fully developed are used to project
the amount of traffic that the site will generate, peak hour traffic levels and the type of vehicles that can
be expected as a result of the planned land uses. There may be exceptional circumstances that would
allow phased installation of access requirements. This is at the discretion of the CDOT Regional Access
Unit or issuing authority staff.
16.Estimated Traffic Count: Provide a reasonable estimate of the traffic volume expected to use
the access. Note the type of vehicles that will use the access along with the volume (number of vehicles
in and out at either the peak hour or average daily rates) for each type of vehicle. A vehicle leaving the
property and then returning counts as two trips. If 40 customers are expected to visit the business daily,
there would be 80 trips in addition to the trips made by all employees and other visitors (such as
delivery and trash removal vehicles). If the PDF on-line version of this application is being used, the
fields for each type of vehicle will automatically be added together to populate the last field on the page.
17.Documents and Plans: The CDOT Regional Access Manager or issuing authority staff will
determine which of these items must be provided to make the application complete. Incomplete
applications will not be accepted. If an incomplete application is received via U.S. mail or through
means other than in the hand of the Access Manager or issuing authority staff, it will not be processed.
It is the responsibility of the applicant to verify with the CDOT Regional Access Manager or
issuing authority staff whether the application is complete at the time of submission.
Signature: Generally, if the applicant is not the property owner, then the property owner or a legally
authorized representative must sign the application. With narrow exceptions, proof of the property
owner ’s consent is required to be submitted with the application (proof may be a power of attorney or a
similar consent instrument). The CDOT Regional Access Manager or issuing authority staff will
determine if the exception provided in the Access Code (2.3 (3) (b)) is applicable.
If CDOT is the issuing authority for this application, direct your questions to the CDOT Regional Access
Manager or the issuing authority staff serving the subject property.
http://www.dot.state.co.us/AccessPermits/PDF/Region_Address_and_Map.pdf
If the application is accepted, it will be reviewed by the CDOT Regional Access Manager or the issuing
authority staff. If an Access Permit is issued, be sure to read all of the attached Terms and Conditions
before signing and returning the Access Permit. The Terms and Conditions may require that additional
information be provided prior to issuance of the Notice to Proceed.
The CDOT Regional Access Manager (or issuing authority staff) MUST be contacted prior to commencing
work on any Access Permit project. A Notice to Proceed that authorizes the Permittee to begin
access related construction MUST be issued prior to working on the access in the State Highway
right-of-way. The Notice to Proceed may also have Terms and Conditions that must be fulfilled before
work may begin on the permitted access.
Instructions for completing Application for Access Permit (CDOT Form #137), January 2010
Page 3
North Hangs Mine
February 2023 35
Water Supply/Distribution Plan
The proposed North Hangs Mine will not be served by a Water Service Entity. All potable water
onsite will be provided in the form of bottled water or similar service provided by Western Slope
Materials to its employees. Therefore, a waiver according to Section 4-118 and 4-202.M of the
Garfield County LDC are requested.
It is anticipated that five employees will work at the North Hangs Mine. The US Mine Safety and
Health Administration (MSHA) does not specify an amount of water for employees at a mine.
Given the hours of operation of 7 am to 7 pm, Monday thru Saturday, 3 gallons of water per
employee per day, Western Slope Materials will need to provide 18 gallons of water per week
per employee or 90 gallons total per week. Western Slope Materials regularly provides such
water supply to its current employees at Grand River Sand and Gravel to the southeast via a
potable water contract. This practice would continue at the North Hangs Mine.
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Wastewater Man./Treatment Plan
The North Hangs Mine will not be served by an existing public collection system and treatment
facilities; portable toilets will be maintained onsite. Therefore, a waiver according to Sections 4-
118 and 4-202.N of the Garfield County LDC are requested.
Wastewater services are not available from the City of Rifle or the Town of Silt. Mining of the
site means an on-site wastewater treatment system (OWTS) is impractical. Portable toilets,
serviced by a contractor, will provide sufficient wastewater systems for employees. Additionally,
these toilets will be removed following mining and reclamation at the end of operation life,
meaning no demolition or close-out of them will be needed.
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Floodplain Analysis
See the attached floodplain analysis.
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Article 7 Standards
Divisions 1, 2, 3, and portions of 10 of Article 7 of the Garfield County LDC are applicable to the
North Hangs Mine. Divisions 1, 2, and 3 are addressed in this section, or this section directs to
the portions of the SUP and/or CDRMS permit application where the standards is addressed.
The applicable portions of Division 10, 7-1001 Industrial Uses and 7-1002 Gravel Extraction are
addressed in their own sections.
1. Division 1. General Approval Standards
7-101 Zone District Standards
The North Hangs Mine is currently zoned Rural. This zone district provides for the use of natural
resources. Gravel operations are allowed via the Major Impact Review land use permit process.
7-102 Comprehensive Plan and Intergovernmental Agreements
The Garfield County Comprehensive Plan Future Land Use Map (FLUM) designates the North
Hangs Mine as part of the Urban Growth Area for the Town of Silt. This means that the Town of
Silt input and insight during the review process will be a key component of the Garfield County
review of this special use permit.
The Town of Silt identifies this property as “Public/Quasi Public Parks & Open Space” in its
Comprehensive Plan. It should be noted that the area to the south of I-70, which hosts an active
gravel pit, is also identified as “Public/Quasi Public Parks & Open Space”. Land to the west,
north, and southwest is all identified as “Natural Resource Extraction/Future Public Quasi-Public
Parks & Open Space”, which is a designation intended to cover areas with active gravel pits as
well as logical locations of future mines on existing deposits.
Given the presence of the Colorado River between the property and the Town of Silt, and the
fact that growth around Silt tends to be concentrated north of the River, the development of the
North Hangs Mine into an active gravel pit and then lakes with wetlands will fit into Town goals.
The mined out North Hangs Mine will provide quality recreation space and wildlife habitat upon
reclamation. The wildlife benefits will come before mining is even finished, as delineated in the
mining plans for the operation. The applicant has reached out and met with the Town of Silt to
create additional transparency during the permitting process.
7-103 Compatibility
The North Hangs Mine is situated amongst industrial, agricultural, and major transport land
uses. The existing Grand River Sand & Gravel operation (also known as the Silt Pit) is located
to the southeast, across from I-70. Interstate 70 is the primary adjacent land use to the south
and east. The Colorado River and associated riparian areas lie along the north and east sides of
the North Hangs property, providing substantial buffer between the operation and local
residences and businesses in Silt. The Shidelerosa farm owns the agricultural land to the west.
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Agricultural activities are thoroughly compatible with sand and gravel mines. Major
transportation corridors are essentially industrial uses themselves, which are compatible with
adjacent sand and gravel mines. The nearest residential and commercial properties are at least
half a mile away in the Town of Silt.
The North Hangs Mine is compatible with surrounding land uses and activity.
7-104 Source of Water
The North Hangs Mine will consume water in two primary ways: potable water for employees
and water used in operations. Potable water is addressed under the Water Supply/Distribution
Plan earlier in this application. Water for use in operations involves water for dust control,
material washing, and water evaporation from exposed groundwater following reclamation.
Water for dust control and material washing will be covered either by an augmentation plan or
substitute water supply plan through the Colorado Division of Water Resources. Water supply
for either an SWSP or augmentation plan may be one of the following:
• Conversion or purchase of water rights for use as an augmentation and industrial water
supply.
• Purchase of water for augmentation from a reservoir.
• A combination of the above two options
Water supply for operations must be secured and in place in order to secure a gravel well permit
from the Colorado Division of Water Resources. A gravel well permit from CDWR is required to
legally operate a mine such as the North Hangs Mine.
The North Hangs Mine Major Impact Review land use change permit is being pursued in
advance of finalizing the water source for operations. The mine will not be opening for several
years, and thus there is time for Western Slope Materials to procure necessary water supply for
the operation.
Prior to mining operations at the North Hangs Mine, Western Slope Materials will provide
Garfield County with proof of a gravel well permit, including proof of water supply for
operations.
7-105 Central Water Distribution and Wastewater Systems.
See the Water Supply/Distribution Plan and Wastewater Man./Treatment Plan sections earlier in
this application.
7-106 Public Utilities
Utilities required at the North Hangs Mine are minimal. A power transmission line is available to
supply power to portable plants and the scale. No natural gas systems will be required onsite.
Map C-1 shows the location of all known utility easements, and no new easements are
proposed.
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7-107 Access and Roadways
The North Hangs Mine will have legal and physical access to North County Road 346, as shown
on Map C-2. Details regarding the access improvements needed can be found in the Traffic
Study section of this application. No roadways are needed for the operation, and the mine will
not be open to the public.
7-108 Use of Land Subject to Natural Hazards
The North Hangs Mine property is not subject to any potential natural hazards like falling rock,
landslides, mud flows, or radiation. Flooding and the presence of a high water table will not
negatively affect the mining operation. The Floodplain Analysis section clearly demonstrates
that mining activity will not exacerbate flood risks in the area. The presence of a high water table
will not interfere with mining or damage and proposed structures. Dewatering activities will move
groundwater out to the Colorado River during mining. Once mining and reclamation area
complete, the high water table will lead to high quality groundwater lakes and associated
wetland habitat.
See the Geologic Hazard section for more information.
7-109 Fire Protection
A water tank for dust control and fire suppression will be maintained onsite at the fuel farm. The
tank will be at least 2500 gallons.
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2. Division 2. General Resource Protection Standards
7-201 Agricultural Lands
The North Hangs Mine will not limit the viability of existing agricultural operations on adjacent
land or adversely affect them. Fences will be maintained around the property to prevent the
uncontrolled migration of livestock.
The Bernudy Ditch that passes through the site will be maintained in its current form until a
reroute pipe is constructed. At that time the ditch will be mined out. Access to the ditch will be
maintained throughout mining and reclamation. Prior to any mining in the ditch footprint or
setback, a new ditch easement for the pipe reroute will be recorded with Garfield County along
with approval of the ditch reroute from the Bernudy Ditch owners.
7-202 Wildlife Habitat Areas
Western Slope Materials consulted with a professional biologist in developing the North Hangs
Mine plans and designs. The analysis of this professional can be found in the Impact Analysis –
Environmental Impacts section of this application.
No critical wildlife habitats will be affected by this operation.
7-203 Protection of Waterbodies
A minimum setback of 100’ is maintained from the Colorado River in the maximum extents of
mining shown on Map C-2. During the majority of the mine’s life, this setback will be 250’+. Prior
to mining within the 250’ setback, Western Slope Materials will provide Garfield County with
inflow/outflow structure designs that are approved by the CDRMS. These structures will be
constructed as part of final mining and reclamation, if Western Slope Materials mines within 250’
of the Colorado River. Map C-4 also shows the setbacks in a snapshot of operations.
7-204 Drainage and Erosion
A CDPHE discharge permit will be secured for all discharge activities at the North Hangs Mine.
Drainage and stormwater runoff is addressed in detail in Exhibit G of the CDRMS application in
Appendix 4 as well as the Stormwater Runoff sub-section of Section 7-1002 Gravel Extraction
further on in this application.
7-205 Environmental Quality
Air permits will be secured from CDPHE prior to operations onsite. All hazardous materials will
be stored in accordance with all applicable State and Federal regulations.
7-206 Wildfire Hazards
The North Hangs Mine will not increase the hazards associated with wildfire in this area.
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7-207 Natural and Geologic Hazards
The North Hangs Mine is not in an avalanche, landslide, alluvial fan, or rockfall hazard area. No
development will occur on steep slopes, on expansive soils, on corrosive rock, in mudflow
areas, or over faults.
7-208 Reclamation
The detailed reclamation plan for the North Hangs Mine can be found within Exhibit E of the
CDRMS permit application in Appendix 4.
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3. Division 3. Site Planning and Development Standards
7-301 Compatible Design
The North Hangs Mine is designed to be compatible with surrounding land uses. Buffers and
setbacks ensure that mining activity does not negatively impact agricultural activity to the west,
the Colorado River to the north and east, and I-70 to the east and south. As shown in the Noise
Analysis in Appendix 1, all operations will be in complete compliance with State noise statutes.
7-302 Off-Street Parking and Loading Standards
Over 250,000 square feet of open ground will be available within the Processing Area to
accommodate parking and loading for the North Hangs Mine. All parking areas will be graveled
to minimize dust generation. As the operation access is located at the end of a county road,
vehicle ingress/egress, parking, and loading, will not interfere with any offsite traffic flow
patterns.
7-303 Landscaping Standards
The North Hangs Mine is an industrial use, and is therefore exempt from this section.
7-304 Lighting Standards
Lighting will only be for emergency repairs and maintenance at North Hangs. It will always be
downcast and limited in use.
7-305 Snow Storage Standards
With over 250,000 square feet of open ground within the processing area, the North Hangs
Mine will have more than enough space to store snow and allow for employee (estimated at 5
people) parking. Snowmelt will be handled by stormwater control measures onsite. See the
SWMP.
7-306 Trail and Walkway Standards
No trails or walkways are proposed at North Hangs Mine.
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Section 7-1001 Industrial Uses
The North Hangs Mine complies with all components of Section 7-1001 of the Garfield County
Land Development Code.
1. Residential Subdivisions
The North Hangs Mine is not located in or adjacent to any platted subdivision.
2. Setbacks
All activity on the North Hangs Mine is at least 100 feet from adjacent residential property lines.
3. Concealing and Screening
Almost all storage, fabrication, service, and repair operations on the North Hangs Mine will be
screened by trees and distance from neighboring properties. Stockpiles will be screened as
much as possible due to physical limits of the site. Topsoil storage will take place in stockpiles
and/or berms along the site perimeter, and while those will be visible, they will be vegetated and
landscaped to blend into the environment.
4. Storing
All materials will be stored in a manner that prevents their off-property transfer by forseeable
natural cause or force. This includes watering of material stockpiles, vegetation of long term
topsoil stockpiles, and de-peaking of piles as needed. Mine Safety and Health Administration
(MSHA) regulations will be followed for all storage onsite. No storage will be within 100 feet of a
property line. Petroleum products will be stored in accordance with EPA rules and the SPCC
plan for the site.
5. Industrial Wastes
No industrial wastes will be produced onsite.
6. Noise
North Hangs Mine operations will operate within state noise limits.
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7. Ground Vibration
Operations at the North Hangs Mine will not produce ground vibration that is perceptible without
instruments at the property line. Sand and gravel mining will not involve blasting and vibrations
associated with processing plants are perceived only as sound.
8. Hours of Operation
Hours of operation at the North Hangs Mine will be limited to Monday thru Saturday, 7am to 7
pm.
9. Interference, Nuisance, or Hazard
The North Hangs Mine will be operated in a manner so that it does not emit heat, glare,
radiation, or fumes that substantially interfere with the existing use of adjoining property or that
constitutes a public nuisance or hazard.
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Section 7-1002 Gravel Extraction
1. Water Quantity and Quality Impacts/ Floodplain Impacts
The North Hangs Mine shall comply with the applicable standards of section 3-301, Floodplain
Overlay Regulations, and will be subject to section 4-109, Development in 100-Year Floodplain.
The following sections will discuss specific items in more detail.
Flammable or Explosive Solids or Gases
No flammable or explosive solids or gases will be stored on site.
Storage of Materials
Stockpiles of materials will be located within the processing and stockpiling area and will be
contained within stormwater berms to prevent the movement of materials offsite. No materials
will be stored or placed outside of stormwater berms. No permanent overburden or product piles
will be generated during the course of the North Hangs Mine operation. Topsoil will be either
used immediately for reclamation or placed in temporary stockpiles in the stockpile area, until
needed for reclamation.
Floodplain/Floodway
The North Hangs Mine affected area is located adjacent to the Colorado River. The disturbance
area of the site will be a minimum of 100 feet from the river during mining. The entire site is
within the Federal Emergency Management Administration (FEMA) Floodplain Zone A (100-YR
event). No floodway is mapped in this area, according to FEMA. The 100-year floodplain is
shown on Exhibit C and F maps. A Floodplain Analysis can be found earlier in this application.
Dewatering pathways and methodologies are detailed on Map C-2 of the CDRMS application.
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2. Air Quality
The CDPHE regulates both air pollution and fugitive dust that are sourced from businesses in
Colorado. A general air permit will be obtained for fugitive dust, and any required Air Pollutant
Emission Notices (APEN) will be submitted prior to the commencement of mining.
Air Quality Protection
. The following best management practices will be in place for the operation:
• All mining will occur below the existing topography, which will act to limit the migration of
dust and air pollution from the site.
• Disturbance footprint will be limited to the smallest for feasible operations
• Crushing and screening equipment will be equipped with water sprays in order to keep
material wet
• Haul roads, processing and stockpiles floor, and the mining area floor will be watered as
needed
• Haul roads and processing and stockpiles floor will be graveled once they have been
constructed
• Product stockpiles will be maintained moist either from processing or from truck watering
• Product stockpiles will be de-peaked.
• Topsoil stockpiles to be in place longer than 90 days will be seeded with the permanent
seed mix
• Site access will be paved to the main entrance
• Topsoiled reclaimed slopes will be seeded in the first favorable season following the
placement of topsoil
• All internal roads will be gravel
If additional dust suppression is needed at any time, additional watering will take place. This will
be determined by the Facility Manager. In the event of a dust ‘incident’, the Facility Manager will
determine if the incident can be corrected via additional controls or if operation shut down is
needed. The Facility Manager, and his/her designees will be responsible for maintaining a day-
to-day, hour-by-hour sense of the conditions on site and their propensity to generate dust.
Similarly, the Facility Manager would be aware that high afternoon temperatures during the
summer dry out watered areas of the site faster and increase the likelihood of dust generation at
that time of day. Therefore, the Facility Manager would task the water truck to spray active
areas of the site additional times in the hot summer afternoon. It is in this flexible manner that
the dust coming from the North Hangs Mine can and will be minimized. The fact that the
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majority of the excavation will be conducted below the water table will also greatly reduce the
generation of air pollution.
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3. Noise/Vibration
Prior to the initiation of mining activities, Hankard Environmental Inc (HEI) conducted a noise
impact analysis for the proposed North Hangs Mine. Hankard Environmental Inc. gathered
detailed information regarding the noise sources, including makes and models of mining
equipment, crushers, screens, etc., as well as existing and future topography, and mining and
reclamation details. Based on this data, source noise levels were drawn from the HEI
measurement database of similar equipment. Where data was limited, HEI made assumptions
based on their experience and/or gather publicly available GIS data. Noise source
measurements were also conducted by HEI and are included in the attached report. Hankard
Environmental Inc. created a map of the applicable noise limits surrounding the Project per CRS
§25-12 for review and approval by the North Hangs Mine. Hankard Environmental Inc. created
noise models (i.e.: pre-mining, full-mining, reclamation) as necessary to determine the worst-
case model. Mitigation was modeled as needed for the worst-case model. The noise models
include point predictions at noise sensitive receptors and noise level contours. Noise models
were created using SoundPLAN v8.2 software that applied the International Organization for
Standardization 9613-2. See the attached HEI report for further details and results of the noise
impact analysis.
A variety of best management practices will be employed to mitigate noise and vibration
impacts. They include:
• No use of explosives
• Non-beeping back up alarms
• Containing all mining activity behind the topsoil berm and the natural and augmented
screen of trees as much as possible
• Containing all processing activity behind berms as much as possible
• Locating all processing plants as far away from neighbors as possible
• All mining will be conducted below the existing grade
• Mining and plant activities are limited to daylight hours (half an hour before sunrise to
half an hour after sunset)
• Haul trucks will not use J-brakes
In the event that equipment or activity generates nuisance noise in a manner that was
unanticipated, such activity or equipment will be taken offline until it can be operated in a non-
nuisance manner. The Facility Manager can be contacted by anyone in the area or by any
Garfield County personal that detects a nuisance noise. Contractor equipment will be required
to operate under the same constraints as that of the operator.
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4. Visual Mitigation
Due to the fact that the North Hangs Mine is larger than 30 acres, it will be sequenced in a
logical manner so as to minimize the visual impact of the operation. This will entail beginning the
mining in the south portion of the permit area and progressing northwards. In order to minimize
the visual impacts, reclamation will occur as soon as possible in all mined out areas, and will
begin no later than 6 months after the commencement of a new phase of mining. Additionally,
landscaping along the south side of the operation will be developed in advance of mining
operations.
Visual renders were created of the North Hangs site to demonstrate what the mine will
potentially look like through all phases of mining and reclamation. Photos were captured at six
key observation points to demonstrate what is visible of the mine from the nearest neighbors
and adjacent highway with the visual mitigation measures in place. Four of the observation
points are located along the adjacent I-70 highway to the south as these are the closest views
the public will see of the North Hangs mine. These locations are dispersed along the spread of
the site in the areas where the mine is most visible to show what the public will see as they drive
by. The remaining two observation points are located to the north of the site along Highway 6
where the closest neighbors will be able to see the mine.
The site is most visible to the public from I-70. Screening from trees will hide the majority of the
processing area near the site entrance. The trees that will be used for screening during mining
will be transplanted from the existing vegetation on site prior to mining. Transplanting large
vegetation maximizes its effectiveness as a screening tool. Some smaller vegetation will be
planted from seed as well and provide infill screening over time. In the areas without berms and
trees in place, the pit will be visible from the road. However, the topography will provide natural
cover from the activities occurring on the mining floor.
The key observation point (KOP) locations and the directions they were taken in are shown in
Figure 7. For each location, renders were created to show mining and final reclamation. Each
key observation point is described in more detail below.
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Figure 7. Key Observation Point Locations Surrounding North Hangs
KOP 6
KOP 3
KOP 5
KOP 4
KOP 1
KOP 2
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Key Observation Point 1
The first key observation point is located on westbound I-70 near the site entrance facing west.
This location is facing the western portion of the processing area with the mining area in the
background. During mining, transplanted trees near the site entrance screen the view of the
processing area and pit. After reclamation, the lake will be visible in the distance with screening
from the trees placed during mining and as well as newly planted trees. The original image is
shown in Figure 8 while the renders are shown in Figure 9. KOP 1 Mining Render and Figure
10.
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Figure 8. KOP 1 Baseline Photo
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Figure 9. KOP 1 Mining Render
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Figure 10. KOP 1 Reclamation Render
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Key Observation Point 2
The second key observation point is at the same location as KOP 1 on westbound I-70 facing
east. This point is in view of the processing area and site entrance, with the mining area in the
background. The background vegetation will be thinned out and more of the ridge in the
distance will become visible as the trees within the mining area are removed. After final
reclamation, the eastern portion of the reclamation pond and some wetlands will be visible
through the trees. The original photo from this view is shown in Figure 11 while the renders of
mining and reclamation conditions are shown in Figure 12. and Figure 13.
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Figure 11. KOP 2 Baseline Photo
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Figure 12. KOP 2 Mining Render
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Figure 13. KOP 2 Final Reclamation Render
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Key Observation Point 3
The third key observation point is located at the western end of the site along westbound I-70,
facing west. This point is facing the southwest portion of the site where the southern portion of
the pit will extend. After final reclamation, the area will show rangeland and wetlands. The
original photo of this observation point can be seen in Figure 14 while the renders can be seen
in Figure 15. And Figure 16.
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Figure 14. KOP 3 Baseline Photo
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Figure 15. KOP 3 Mining Render
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Figure 16. KOP 3 Reclamation Render
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Key Observation Point 4
The fourth key observation point is located on the eastern side of the site on eastbound I-70
facing northeast. It is facing the northeastern portion of the mine and the furthest east portion of
the processing area. The original photo of this observation point can be seen in Figure 14
Figure 17 while the renders of mining and reclamation can be seen in Figure 15. and Figure 16.
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Figure 17. KOP 4 Baseline Photo
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Figure 18. KOP 4 Mining Render
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Figure 19. KOP 4 Reclamation Render
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Key Observation Point 5
The fifth key observation point is located on the ridge to the north of the site along Highway 6.
The North Hangs site can be seen in the distance to the southwest. This location represents the
view from residents on the western end of the Town of Silt. As shown in the photo, the
topography along the south side of Highway 6 obscures a significant amount of the view. The
eastern half of the site is visible from the nearest neighbor showing most of the processing area
and the eastern portion of the pit. Because the site is barely visible in the distance, few changes
between the different areas of mining will be visible. After final reclamation, the entire visible
area is rangeland and wetlands. The original photo of this observation point can be seen in
Figure 20. while the renders of mining and reclamation are shown in Figure 21. and Figure 22.
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Figure 20. KOP 5 Baseline Photo
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Figure 21. KOP 5 Mining Render
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Figure 22. – KOP 5 Final Reclamation Render
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Key Observation Point 6
The sixth observation point is located on the ridge off Highway 6 to the northwest of the site.
The photo was taken from the driveway of the other nearest neighbor that can view the mine.
The North Hangs site can be seen in the distance to the southeast. The western side of the site
can be seen in this direction showing the site during mining. After reclamation the lake is
primarily what will be seen from this view. The original photo from this observation point can be
seen in Figure 23. while the renders of mining and reclamation can be seen in Figure 24.
through Figure 25.
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Figure 23. KOP 6 Baseline Photo
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Figure 24. KOP 6 Mining Render
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Figure 25. KOP 6 Reclamation Render
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Screening Trees
Trees will be planted in two locations on the site in order to provide a visual screen for the Town
of Silt and the I-70 corridor. Trees will be planted to in-fill the existing trees on the north side of
the site along the Colorado River in order to mitigate the visual impacts to the Town of Silt.
These infill trees will be planted near the Colorado River in locations that will not be affected by
mining. Trees will also be planted along the south edge of the processing area and stockpile
area to mitigate the visual impacts to the I-70 corridor. These trees will be a mix of new seeding
and transplanted trees removed from areas to be mined. See Map F-1 for the locations of tree
plantings. In addition to the installation of screening trees, the phasing of the mining operation
will contribute to the mitigation of the visual impacts of the operation. Mining will maintain the
natural tree stands on the site along the Colorado River. Tree removal will be limited to those
trees that are within the proposed mining areas.
5. County Road System
Prior to the commencement of mining activities, a traffic study was conducted by Kimley-Horn
and Associates Inc. (Kimley-Horn) for the proposed North Hangs Mine, a copy of which is
attached to this application. Based on the analysis presented in the report, Kimley-Horn believes
North Hangs Mine will be successfully incorporated into the existing and future roadway network
without the need for any traffic improvements. All project intersections are expected to operate
acceptably throughout the 2037 study horizon with their existing lane configuration and control.
Operational practices to control traffic will include:
• Installation of any improvements at the intersection of North County Road 346 and
Mamm Creek Road (County Road 315) as required by Garfield County
• Maintenance of signage and speed limits for truck traffic entering and leaving the County
Road 346
• Usage of a one-way traffic routing in the facilities area to minimize customer truck travel
distance and time
• Maintenance of a designated parking area away from stockpiles and internal traffic
• Usage of a designated maintenance area for all minor equipment maintenance such as
greasing and refueling in the facilities area
• Tracking pads will be used at all entrances to the site to ensure sediment and mud
control
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6. Compatibility with Surrounding Land Uses
The North Hangs Mine is compatible with the surrounding land uses which include; an existing
gravel pit, the I-70 transportation corridor, and rangeland. The final uses of the North Hangs
Mine after reclamation will be rangeland, a groundwater lake, and wetlands. These uses are
also compatible with the current surrounding land uses.
7. Revegetation and Reclamation
Revegetation and Reclamation of the North Hangs Mine will be conducted as described in
Exhibit E of the CDRMS permit application in Appendix 4.
Prior to mining, a weed survey will be conducted and an inventory of county and state-listed
weeds along with a detailed weed management plan will be provided to Garfield County.
8. Wildlife/Vegetation
Prior to the commencement of mining activities, a wildlife/vegetation study was conducted for
the proposed North Hangs Mine by Steve D. Dahmer, Principal Ecologist at Environmental
Solutions, Inc., a copy of which is attached to this mitigation plan. The proposed project will
result in removal of a significant amount of rock and gravel resources below the existing grade,
which will result in the creation of one large groundwater lake on the Property. As part of the
mitigation measures, pond depth, shoreline slopes and layout as well as submerged slopes will
all be designed to establish a variety of habitat types to meet requirements of a diverse array of
wildlife species. This will include creation of fish habitat, including deepwater habitats, as well as
perennial wetland vegetation communities, both emergent and wet-meadow types. Mitigation
will include planting of a broad selection of wetland and upland species to maximize the
productivity and diversity of habitats on the Property. Creation of the lake will result in increased
diversity by adding a variety of fish habitat, including deep water, and a great deal of “edge”,
which is how biologists define the convergence of two or more habitat types. In general, the final
use of the site will increase the value of the Property as a wildlife area.
9. Section 7-1002.I.1. Waiver
Western Slope Materials requests a waiver from the requirement outlined in Section 7-1002(I) of
the Garfield County LUDC. Several Local, State, and Federal permits cannot be applied for
without conditional land use approval from Garfield County. These permits are:
- Colorado Div. of Water Resources Water Augmentation Plan
- US Army Corps of Engineers Wetlands Permit
- Colorado Dept. of Transportation Access Permit
- Colorado Dept. of Public Health and Environment Discharge Permit
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- Colorado Dept. of Public Health and Environment Fugitive Dust Permit
- Garfield County Floodplain Permit
Western Slope Materials will not begin operations without all applicable permits in place at the
North Hangs site.
North Hangs Mine
February 2023
Appendix 1 – Noise Analysis
North Hangs Mine
February 2023
Appendix 2 – Environmental Impact Analysis
North Hangs Mine
February 2023
Appendix 3 – Geologic Hazard Analysis
North Hangs Mine
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Appendix – Noise Study
North Hangs Mine
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Appendix 4 – CDRMS Application
North Hangs Mine
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Appendix 5 – SPCC Plan
North Hangs Mine
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Appendix 6 – Stormwater Management Plan
North Hangs Mine
February 2023
Appendix 7 – Other Items
Wetland Delineation
Town of Silt Letter