HomeMy WebLinkAbout1.06 Traffic Study10. Traffic Study (pursuant to Section 4-203.L)
Pursuant to Section 4-203.L.2 of the Garfield County Land Use and Development Code, a Basic Traffic
Analysis has been prepared and is provided below.
Street System Map
Map 7 depicts: (1) existing and proposed internal roads, adjoining roads, and access points; (2) all County
roads within a 1 -mile radius of the development; and, (3) the nearest proximate intersections with State
or Federal highways likely to receive traffic impacts from the development. All construction activity will be
confined to the proposed lot. However, it is unknown where exactly on Lot 1 construction activities will
occur. That will be determined by the lot owner(s). Therefore, the location of construction activities have
not been shown on Map 7.
Existing Land Use, Traffic and Access
Existing Traffic Counts
The existing land uses on properties accessed via the graveled access road are agricultural uses (i.e.,
pastureland). Agriculture is not listed as a specific land use in the ITE Trip Generation Manual, 10th Edition
(2017) so no trip generation data is available to calculate approximate daily vehicle trips from existing
uses. Agriculture uses, such as pastureland, typically generate few vehicle trips. Therefore, the impact of
existing agricultural uses have minimal impact on adjacent roads.
Table 15 below provides Garfield and Eagle County's traffic counts for:
• Cattle Creek Road/County Road 113 (CR -113)
• Upper Cattle Creek Road/County Road 122 (CR -122)
• Red Canyon Road/County Road 115 (CR -115)
• Coulter Creek Road/County Road 121 (CR -121)
• Catherine Store Road/County Road 100 (CR -100)
• Crystal Springs Road/County Road 103 (CR -103)
Table 15 also includes traffic counts for State Highway 82 (CO -82) at the intersections of CR -113 and CO -
82, CR -103 and CO -82 and CR -122 and CO -82. These intersections are located approximately 8.6 -miles
southwest, 7.5 -miles southwest and 8.8 -miles southeast of Lot 1, respectively. These intersections are
identified as the most likely to receive any associated traffic impacts.
2018 traffic counts were not available at the time of this application.
Table 15. Existing Traffic Counts
Road Segment
Traffic Counts
(ADT1)
Location Measured
Year Measured
Measured By
CR -113
815
At beginning of road
2014
Garfield County
CR -113
421
At the Garfield/Eagle
County boundary
2016
Eagle County
CR -122
195
At the Garfield/Eagle
County boundary
2015
Eagle County
CR -122
10,783
North of intersection
with Co -82
2015
Eagle County
1ADT = Average Daily Traffic
50
Road Segment
Traffic Counts
(ADT1)
Location Measured
Year Measured
Measured By
CR -115
184
Half way
2014
Garfield County
CR -121
38
At beginning of road
2014
Garfield County
CR -100
1,353
North of CO -82
2014
Garfield County
CR -103
1,020
At beginning of road
2014
Garfield County
CO 82
25,000
North of intersection
with CR -113
2017
Colorado Department of
Transportation (CDOT)
CO -82
19,000
South of intersection
with CR -113
2017
Colorado Department of
Transportation (CDOT)
CO 82
21,000
At intersection with
CR -103
2017
Colorado Department of
Transportation (CDOT)
CO 82
21,000
East of intersection
with CR -122
2017
Colorado Department of
Transportation (CDOT)
CO 82
22,000
West of intersection
with CR -122
2017
Colorado Department of
Transportation (CDOT)
lADT = Average Daily Traffic
Existing Access
An existing graveled road is the sole access to the subject property. This access road begins at CR -113 and
terminates at the Restivo property (west of the proposed lot). The access point for this road is located on
the west side of CR -113 and is approximately 0.7 -miles north of the intersection of CR -113 and CR -122.
Garfield County issued a driveway permit (permit# 034-98D) for the access road on July 15, 1998. This
permit provides legal access from CR -113 to the property. A copy of the driveway permit is included on
the following pages.
There are no state highway or railroad crossing permits associated with this application.
There are no recorded easement for the existing graveled road that provides access across the applicant's
property to the Restivo properties (parcels 218932400038 and 218932400040). A 30 -foot wide private
ingress/egress and utility easement for the existing access road is proposed in conjunction with this
application. Refer to the Final Plat included in this application.
51
Driveway Permit #034-98D issued by Garfield County Road & Bridge Department
1
Garfield County Road & Bridge Department
P.O. Box 2254
Glenwood Springs, CO 81602
Phone: 970-945-6111
Fax: 970-945-0934
King Lloyd, Supervisor
Today's Date: 07-15-1998
Please remit for the following permit(s): Date of Issue 07-15-98
PERMIT(s) #: 034-98 D
Name: MCNULTY, SARAH
Address: 7747 CO RD 100
City: CARBONDALE
Phone: 963-4829
Bond Holder:
ST: CO ZIP: 81623
Utility Cut Permits -#"s: From: - To; - Total Utility .00
Driveway Permits -#'s: From: 034-98 To: 034-98 Total Driveway 15.00
Over Size Permits -#'s: From: - To; - Total Over Size
Over Weight Permits -#"s: From: - To: -- Total Over Weight .00
.00
Please Put Permit #"s On Check
Paid ? (Yes or No) Check #:
52
1
1 District: I
1 Road: 113
1 Permit #: 034-98 D
1
GARFIELD COUNTY
APPLICATI 0 N F O R D R I V E WAY PERMI T
Application Date 07-15-1998
I, MCNULTY, SARAH (herein called "Applicant"), hereby requests
permission and authority from the Board of County Commissioners to construct e
driveway approach(es) on the right-of-way of Garfield County Road Number 113
adjacent to Applicant's property located on the WEST side of the road, a
distance of 10 MI mile(s) from INT HWY 82 & CR 113 for the purpose of
obtaining access to AG STRUCTURE
Applicant submits herewith for the consideration and approval
of the Board of County Commissioners, a sketch of the proposed instal-
lation showing all necessary specification detail including (1) front-
age of lot along road, (2) distance from centerline of road to
property line, (3) number of driveways requested, (4) width of pro-
posed driveway(s) and angle of approach, (5) distance from driveway
to road intersection, if any, (6) size and shape of area separating
driveways if more than one approach, and (7) setback distance of
building(s) and other structures or improvements.
GENERAL PROVISIONS
FIRST: The Applicant represents all parties in interest, and affirms
that the driveway approach(es) is to be constructed by him for the
bona fide purpose of securing access to his property and not for the
purpose of doing business or servicing vehicles on the road right-of-way.
SECOND: The Applicant shall furnish all labor and materials, perform
all work, and pay all costs in connection with the construction of the
driveway(s) and its appurtenances on the right-of-way. All work shall
be completed within 30 days of the Permit date.
THIRD: The type of construction shall be as designated and/or approved
by the Board of County Commissioners or their representative, and all
materials used shall be of satisfactory quality and subject to inspec-
tion and approval of the Board of County Commissioners or their
representative.
FOURTH: The traveling public shall be protected during the instal-
lation with proper warning signs and signals and the Board of County
Commissioners and their duly appointed agents and employees shall be
held harmless against any action for personal injury or property
damage sustained by reason of the exercise of the Permit.
53
f
SPECIFICATIONS
1. A driveway approach is understood to be that portion of the high-
way right-of-way between the pavement edge and the property line which
high -
‘.
s designed and used for the interchange of traffic: between the road-
way pavement and the abutting property.
2.At any intersection, a driveway shall be restricted for a suf-
ficient distance from the intersection to preserve the normal and safe
movement of traffic. (It is recommended for rural residence entrances
that a minimum intersection clearance of 50 feet be provided and for
rural commercial entrances a minimum of 100 feet be provided.)
3. All entrances and exits shall be so located and constructed that
vehicles approaching or using them will he able to obtain adequate
sight distance in both directions along the highway in order to maneuver
safely and without interfering with highway traffic.
4. The Applicant shall not be permitted to erect any sign or display
material, either fixed or movable, on or extending over any portion
of the highway right-of-way.
5. Generally, no more than one approach shall be allowed any parcel
or property the frontage of which is less than one hundred (100) feet.
Additional entrances or exits for parcels or property having a frontage
in excess of one hundred (100) feet shall be permitted only after
showing of actual convenience and necessity.
6. All driveways shall be so located that the flared portion adjacent
to the traveled way will not encroach upon adjoining property.
7. No commercial driveway shall have a width greater than thirty (30)
feet measured at right angles to the centerline of the driveway, except
as increased by permissible radii. No noncommercial driveway shall
have a width greater than twenty (20) feet measured at right angles to
the centerline of the driveway, except as increased by permissible radii.
8. The axis of an approach to the road may be at a right angle to the
centerline of the highway and of any angle between ninety (90) degrees
and sixty (60) degrees but shall not be less than sixty (60) degrees.
Adjustment will be made according to the type of traffic to be served
and other physical conditions.
9. The construction of parking or servicing areas on the highway
right-of-way is specifically prohibited. Off -the -road parking facil-
ities should be provided by commercial establishments for customers"
vehicles.
10. The grade of entrance and exit shall slope downward and away from
the road surface at the same rate as the normal shoulder slope and for
a distance equal to the width of the shoulder but in no case less than
twenty (20) feet from the pavement edge. Approach grades are restricted
to not more than 10 percent (106).
11. All driveways and approaches shall be so constructed that they
shall not interfere with the drainage system of the street or highway.
The Applicant will be required to provide, at his own expense, drain-
age structures at entrances and exits which will become an integral
part of the existing drainage system. The dimensions of all drainage
structures must be approved by the Board of County Commissioners or
their representative prior to installation.
NOTE: This permit shall be made available at the site where and when work is
being done. A work sketch or drawing of the proposed driveway(s) must accompan
application. No permit will be issued without drawing, blueprint, or sketch.
54
FIFTH: The Applicant shall assume responsibility for the removal or
clearance of snow, ice or sleet upon any portion of the driveway ap-
proach(es) even though deposited on the driveway(s) in the course of
the County snow removal operations.
SIXTH: In the event it becomes necessary to remove any right-of-way
fence, the posts on either side of the entrance shall be securely
braced before the fence is cut to prevent any slacking of the remain-
ing fence, and all posts and wire removed shall be turned over to the
District Road Supervisor of the Board of County Commissioners.
SEVENTH: No revisions or additions shall be made to the driveway(s)
or its appurtenances on the right--of-way without the written permis-
sion of the Board of County Commissioners.
EIGHTH; Provisions and specifications outlined herein shall apply on
all roads under the jurisdiction of the Board of County Commissioners
of Garfield County, Colorado, and the Specifications, set forth on the
attached hereof and incorporated herein as conditions hereof.
SPECIAL CONDITIONS
RESPONSIBLE FOR TWO YEARS FROM DATE OF COMPLETION
15" CULVERT
PLACE 3/4" ROAD BASE LAST 12" OF DRIVE -WAY
In signing this application and upon receiving authorization and
permission to install the driveway approach(es) described herein the
Applicant signifies that he has read, understands and accepts the
foregoing provisions and conditions and agrees to construct the drive-
way(s)
rive-
ways) in accordance with the accompanying specification plan reviewed
and approved by the Board of County Commissier,_�
c
(L -
Witness: Signe
PERMIT GRANTED THIS DAY OF
PROVISIONS, SPECIFICAT 0 S, AND CONDIT • S ST
For Board of County Commissio
BY:
(Signature of Applicant)
(Address)
19
ULATED H
ersCarf
n
J\� rf
Telephone Number)
, SUBJECT TO THE
N.
eld County, Colorado
55
Other Traffic Information
There are no road segments identified on, or contained within, an approved Municipal Street Plan within
a one -mile radius of the proposed lot.
Proposed Land Use, Traffic and Access
Lot 1 will be developed with one (1) single-family home. Estimated daily vehicle trips have been
calculated using trip generation data obtained from the ITE Trip Generation Manual, 10th Edition (2017).
According to the ITE manual, an estimated 10 daily trips are generated per single-family detached home
(ITE Land Use Code 210). It is expected that residential development on Lot 1. will generate 10 daily
vehicle trips.
Table 16 shows how these trips could impact traffic counts on CR -113, CR -122, CR -100, CR -103 and the
CO -82 intersections. It is not anticipated that traffic generated by the single-family home would regularly
travel along CR -121. CR -121 does not appear to lead to destinations that would be frequented by
residents of Lot 1. Therefore, projected traffic counts were not included for CR -121.
Table 16. Projected Traffic Counts when Lot 1 Development Completed
Road Segment
Existing Traffic
Counts (ADT')
Projected Traffic
Counts (ADT')
% Increase in
Traffic Counts
Location Measured
CR -113
815
825
1.23%
At beginning of road
CR -113
421
431
2.38%
At the Garfield/Eagle
County boundary
CR -122
195
205
5.13%
At the Garfield/Eagle
County boundary
CR 122
10,783
10,793
0.093%
North of intersection
with CO -82
CR -115
184
194
5.43%
Half way
CR -121
38
N/A
N/A
At beginning of road
CR -100
1,353
1,363
0.74%
North of CO -82
CR -103
1,020
1,030
0.98%
At beginning of road
CO -82
25,000
25,010
0.04%
North of intersection
with CR -113
CO -82
19,000
19,010
0.053%
South of intersection
with CR -113
CO -82
21,000
21,010
0.048%
At intersection with
CR -103
CO -82
21,000
21,010
0.048%
East of intersection
with CR -122
CO -82
22,000
22,010
.045%
West of intersection
with CR -122
'ADT = Average Daily Traffic
Proposed Access
Access to Lot 1 will be the same as under existing conditions. A 30 -foot wide private ingress/egress and
utility easement will be provided, as noted on the Final Plat, to allow the lot owner(s) to use the graveled
access road and have legal access across the applicant's property to Lot 1. This easement will also allow
the owner(s) of the Restivo properties to have legal access across both the applicant's property and Lot 1.
An Easement Agreement will be used to address on-going maintenance of the access road. A draft of the
Easement Agreement is included as Appendix D.
56
A 30 -foot wide private ingress/egress and utility easement for the benefit of Lot 1 will be provided to
allow for the lot owner(s) to have legal access from the access road to their property across land held by
the applicant. Refer to the Final Plat included in this application.
Construction Phasing
Temporary access points are not anticipated during the construction of on-site infrastructure to support
residential development (ex. a driveway) on Lot 1 and the subsequent construction of a single dwelling
unit on the property. Access to Lot 1 from CR -113 is permitted by the Garfield County Road and Bridge
Department (evidence of this the driveway permit included in this application); therefore, no additional
permits will be required. There will be no road closures or traffic interruptions.
During the construction phase, it is expected that daily trips generated by construction activity on Lot 1
will be those typically associated with the construction of a single-family home. It is anticipated that this
construction activity will be short in duration (approximately 8-12 months) and have minimal impact on
County Roads and CO -82 intersections. Therefore, projections of those trips have not been included in
this application. A request for a partial waiver from the submission requirements of Section 4-203.L has
been included in this application.
Staging and storage areas will be confined to Lot 1, as will all construction activity.
Average Daily Traffic Count Information
Map 8 depicts existing and projected average daily traffic counts for on CR -113, CR -122, CR -100, CR -103
and the CO -82 intersections.
Thresholds Requiring a Detailed Traffic Analysis
Pursuant to Section 4-203.L.1.b of the Garfield County Land Use and Development Code, a Detailed
Traffic Analysis is required if:
■ Traffic volumes projected at any intersection with a state or federal highway exceed current
volumes by 20%.
■ Traffic volumes projected on any county road segment exceed current volumes by 20%.
■ Traffic volumes on any road segment identified or contained within an approved Municipal Street
Plan within a 1 -mile radius exceed current volumes by 30%.
This Basic Traffic Analysis demonstrates that none of the thresholds requiring a Detailed Traffic Analysis
are exceeded.
57
Map 7. Street System
McNulty Rural Land Development Exemption
deg wa;sAs laans
58
Map 8. Existing and Projected Traffic Counts
McNulty Rural Land Development Exemption
Existing and Projected Traffic Counts Map
59