HomeMy WebLinkAbout1.0 Application1
1
RECEIVED
GARFIELD COUNTY MAY 1 5 2006
Building & Planning Department
108 8th Street, Suite 201 GARI-�E� : ;,;OUNTY
Glenwood Springs, Colorado 81601 BUILDING & PLANNING
Telephone: 970.945.8212 Facsimile: 970.384.3470
www.garfield-county.com
Subdivision Application Form
GENERAL INFORMATION
(To be completed by the applicant.)
➢ Subdivision Name: Pioneer Glen Subdivision
➢ Type of Subdivision (check one of the following types):
Sketch Plan XX Preliminary Plan Final Plat
➢ Name of Property Owner (Applicant):Specialty Restaurants Corporation
D. Address:8191 East Kaiser Boulevard Telephone:714-279-6100
D. City: Anaheim State: CA
Zip Code:92808 FAX: 714-998-4861
➢ Name of Owner's Representative, if any (Attorney, Planner, etc):
Deric Walter - Boundaries Unlimited Inc.
➢ Address: 823 Blake Avenue, Ste. 102 Telephone: 970-945-5252
➢ City: Glenwood Springs State: CO
Zip Code:81601 FAX: 970-384-2833
➢ Name of Engineer: Deric Walter, PE - Boundaries Unlimited Inc.
➢ Address: Same Telephone:
➢ City: State: Zip Code: FAX:
➢ Name of Surveyor: Jeff Tuttle, PLS - Tuttle Survey Services
D. Address: 823 Blake Avenue, Ste. 102 Telephone: 970-928-9708
D. City: Glenwood Springs State: CO Zip Code:81601 FAX:
➢ Name of Planner:
D. Address: Telephone:
➢ City: State: Zip Code: FAX:
GENERAL
:- Location of Property: Section
- Practical Location / Address
Mesa RV Park. Parcel 1
INFORMATION continued...
24 Township 7S Range 96W
of Property: County Road 300, West of the Battlement
of the Lynch & Chanes Exemption Plat
D Current Size of Property to
1- Number of Tracts / Lots Created
D Property Current Land Use
1. Property's Current
2. Comprehensive Plan
Proposed Utility Service:
D Proposed Water Source:
D. Proposed Method of Sewage
D Proposed Public Access
D Easements: Utility:
Ditch:
D Total Development Area (fill
be Subdivided (in
within the Proposed
Designation:
Zone District: ARRD
acres): 35.08
Subdivision:
6
Map Designation:
Wells augmented through
Residential
WDWCD Area -A contracts
Disposal: ISDS
VIA: County Road #300
in the appropriate boxes below):
(1) Residential
Units 1Lots
Size (Acres)
Parking Provided
Single -Family
6
35.08
24
Duplex
Multi -Family
Mobile Home
Total
35.08
24
Floor Area (sq. ft.)
Size (Acres)
Parking Provided
(2) Commercial
(3) Industrial
(4) Public 1 Quasi -Public
(5) Open Space / Common Area
Total
➢ Base Fee: Sketch Plan - $325.00; Prelim Plan - $675.00; Final Plat - $200
> Plat Review Fee (see attached fee schedule)
paid on
2
May 8, 2006
BOUNDARIES
UNLIMITED INC.
Civil & Consulting Engineers
Garfield County
Building and Planning Department
109 8th Street, Suite 303
Glenwood Springs, CO 81601
Re: Pioneer Glen Subdivision -Sketch Plan and Supplemental Information
To Whom It May Concern:
On behalf of the owners of the proposed Pioneer Glen Subdivision, please find an enclosed application
for Sketch Plan Approval. We have also addressed the concerns listed in the Garfield County
Subdivision Regulations Section 3:40 for Sketch Plan Supplemental Information.
Enclosed you should also find an Application Form, a Letter of Authorization, an Agreement for
Payment Form and a check for fee payment in the amount of $325.00.
SUPPLEMENTAL INFORMATION:
A. Source and Amount of Water Supply
Potable and irrigation water for the proposed subdivision is anticipated to be supplied through the use
of new groundwater wells developed and augmented through an Area -A West Divide Water
Conservancy District contract. The amount of potable water requested will be for 6 single family
homes.
B. Proposed Type of Sewage Disposal
The Battlement Mesa Metropolitan District serves the Battlement Mesa RV Park which is located
approximately 100 -feet higher and to the east of the proposed subdivision. The nearest service line is
also located approximately 350 -feet from the nearest proposed residence. The Metropolitan District
has verbally indicated that the capacity of the existing system is already accounted for with their future
development plans and that they are not interested in providing out -of -district service to this site.
Therefore, each lot will utilize an Individual Sewage Disposal System which will be designed by a
Colorado registered professional engineer.
C. USDA Soil Conservation Service soil designations, with interpretation tables attached.
Information from the SCS Soil Survey of Rifle Area, Colorado (Parts of Garfield and Mesa Counties)
-has been attached. Approximately 16 -acres of the property are located within the Colorado River
floodplain. The remaining developable area is comprised of three soils type: Arvada Loam (6 to 20
percent slopes), Potts-Ildefonso Complex (12 to 25 percent slopes) and Nihill Channery Loam (1 to 6
823 Blake Avenue I Suite 102 Glenwood Springs
Colorado 81601 Ph: 970.945.5252 Fax: 970.384.2833
• •
percent slopes). Included in the attachment are several of the implementation tables from the Soil
Survey.
D. Statement assessing the impact of the proposed subdivision on lakes, streams and topography of
the site.
The development is intended to remain rural in nature. The Colorado River runs through the north
portion of the property and a drainage channel runs along the western boundary. The river is not
anticipated to be negatively impacted as the building sites will be located well outside of the 100 -yr
floodplain. A driveway crossing over the drainage channel may be constructed to provide access to
the building site for Lot 1. This crossing will likely utilize a 24" diameter culvert to convey
stormwater flows that currently pass under County Road #300. Roadside ditches will be implemented
to mitigate storm runoff. Sediment controls will be implemented to reduce the impact of the
development.
E. Statement assessing potential radiation hazards to the site.
Please refer to the attached letter from CTL Thompson, Inc. dated April 17, 2006
F. Evidence that all lots and parcels created by the subdivision will have access to a public right-of-
way, in conformance with the Colorado State Highway Access Code and applicable County
Regulations.
The site is bordered on the south by County Road #300, (Stone Quarry Road). A subdivision road will
connect all proposed lots to the CR#300 public right-of-way.
G. Anticipated Source of electricity, natural gas, telephone and cable TV. services.
Electricity is anticipated to be provided by Holy Cross Energy
Natural gas is anticipated to be provided by Xcel Energy.
Telephone is anticipated to be provided by Qwest.
Comcast was not able to confirm that Cable TV is available to the Site. Therefore, satellite systems
are anticipated.
Sincerely,
Deric Walter, P.E.
BOUNDARIES UNLIMITED INC.
Consulting and Civil Engineers
Enc.
Cc: David Tallichet, Toby Guccini, Marc Hogan, Tom Zancanella
SPECIALTY RESTAURANTS CORPORATION
May 10, 2006
Garfield County
Building & Planning Department
108 8th Street, Suite 201
Glenwood Springs, CO 81601
Re: Battlement Mesa (Lot 1) Project
Dear Garfield County:
Specialty Restaurants Corporation is the owner of a 35 acre parcel in Garfield
County on County Road 300. We hereby authorize Deric J. Walter, P.E. and Boundaries
Unlimited Inc. and/or Eugene Baker of Baker Hogan Houx Architecture & Planning to
act as our land planners and representatives in connection with the above subdivision
applications.
Sincerely yours,
Dennis J.
V.P. / G.C.
8191 East Kaiser Boulevard, Anaheim, CA 92808
Telephone (714) 279-6100 FAX (714) 998-7574 (Executive) FAX (714) 998-4861 (Legal/Finance) FAX (714) 998-4962 (Accounting & Others)
FAX (714) 998-8496 (Purchasing) FAX (714) 998-7609 (Construction)
GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT
AGREEMENT FOR PAYMENT FORM
(Shall be submitted with application)
GARFIELD COUNTY (hereinafter COUNTY) and S l rk('kESTA#UTs Co/ZP J,ILLTcHET CE()
(hereinafter APPLICANT) agree as follows:
1. APPLICANT has submitted to COUNTY an application for 1 z * EE-
(hereinafter, THE PROJECT).
2. APPLICANT understands and agrees that Garfield County Resolution No. 98-09, as amended,
establishes a fee schedule for each type of subdivision or land use review applications, and the guidelines for
the administration of the fee structure.
3. APPLICANT and 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. APPLICANT agrees to make payment of the Base Fee, established for the PROJECT, and to
thereafter permit additional costs to be billed to APPLICANT. 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, APPLICANT shall pay additional billings to COUNTY to reimburse the COUNTY
for the processing of the PROJECT mentioned above. APPLICANT acknowledges that all billing shall be paid
prior to the final consideration by the COUNTY of any land use permit, zoning amendment, or subdivision
plan.
APPLICANT
elk9c�
Signatu -e
Date: Z' 46
Print Name
Mailing Address: 19 I E. 4r5a_
/1 -ANA )-l-Ezn1 , 92.808
10/2004
Page 4
SOIL SURVEY OF RIFLE AREA, COLORADO, PARTS OF GARFIELD AND MESA COUNTIES
Pioneer Glen Subdivision
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SOIL SURVEY OF RIFLE AREA, COLORADO, PARTS OF GARFIELD AND MESA COUNTIES
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Soil Survey of Rifle Area, Colorado, Paris of (iariicld and Mesa Counties Pioneer Glen Subdivision
Map Unit Legend Summary
Rifle Area, Colorado, Parts of Garfield and Mesa Counties
Map Unit
Symbol
Map Unit Name
Acres in AO1 Percent of AOI
4 Arvada loam, 6 to 20 percent slopes 0.6 1.4
34 Ildefonso stony loam, 25 to 45 percent 1.9 4.7
slopes
46 Nihill channery loam, 1 to 6 percent 10.7 26.7
slopes
58 Potts-Ildefonso complex, 12 to 25 percent 5.1
slopes
65
Torrifluvents, nearly level
72 Wann sandy loam, 1 to 3 percent slopes
12.8
10.4 25.9
1.9 4.7
9.5 23.8
USDA Natural Resources Web Soil Survey I .l 5/6/2006
WINN Conservation Service National Cooperative Sod Survey Page 3 of 3
RIFLE AREA, COLORADO 11
ment. Reducing brush improves the range if the grass
understory is adequate.
Cottontail rabbit and pheasant find shelter on this soil
if they can obtain food in surrounding areas.
Use of this soil for sanitary facilities, for community
development, and as a source of construction material is
limited by the high shrink -swell potential, slow permeabil-
ity, clayey textures, and salinity.
This soil is in capability subclass Vlls, irrigated and
nonirrigated.
4—Arvada loam, 6 to 20 percent slopes. This deep,
well drained, sloping soil is on fans and high terraces.
Elevation ranges from 5,100 to 6,200 feet. This soil
formed in highly saline alluvium derived from sandstone
and shale. The average annual precipitation is about 12
inches, average annual air temperature is about 48 de-
grees F, and the average frost -free period is about 120
days.
Typically, the surface layer is moderately alkaline, pale
brown loam about 3 inches thick. The subsoil is brown
silty clay loam about 14 inches thick. The substratum is
light brown or brown silty clay loam to a depth of 60
inches.
Included with this soil in mapping are small areas of
Limon, Kim, and Heidi soils.
Permeability is very slow, and available water capacity
is high. Effective rooting depth is 60 inches or more.
Organic matter content of the surface layer is low. Sur-
face runoff is moderately rapid, and the erosion hazard is
severe.
This soil is used mainly for wildlife habitat and limited
grazing.
The native vegetation on this soil is mainly sagebrush,
greasewood, and wheatgrass.
When range condition deteriorates, grasses decrease
and weedy forbs, cheatgrass, big sagebrush, and
greasewood increase. Properly managing grazing main-
tains and improves range condition. Seeding improves
range in poor condition. Western wheatgrass and tall
wheatgrass are suitable for seeding. Preparing a
seedbed and drilling the seed are good practices. Irrigat-
ing new seedings is necessary for successful establish-
ment. Brush should not be reduced because grass pro-
duction is low and some desirable native shrubs could
be destroyed.
Cottontail and pheasants find shelter on this soil if
they can obtain food in surrounding areas.
Use of this soil for sanitary facilities and as a source of
construction material is limited by the large amounts of
clay and salts. This soil is corrosive to steel and con-
crete. Community development is limited by high shrink -
swell potential, salinity, and steep slopes.
This soil is in capability subclass VI's, nonirrigated.
6—Ascalon fine sandy loam, 1 to 6 percent slopes.
This deep, well drained, nearly level to gently sloping soil
is on mesas, alluvial fans, and terraces. Elevation ranges
from 5,000 to 6,500 feet. The soil formed in alluvium
derived from sandstone and shale. The average annual
precipitation is about 14 inches, the average annual air
temperature is about 48 degrees F, and the average
frost -free period is about 120 days.
Typically, the surface layer is brown fine sandy loam
about 5 inches thick. The subsoil is brown and yellowish
brown sandy clay loam about 30 inches thick. The sub-
stratum is very pale brown sandy clay loam to a depth of
60 inches.
Included with this soil in mapping are small areas of
Olney and Potts soils that have slopes of 1 to 6 percent.
Permeability is moderate, and available water capacity
is moderate. Effective rooting depth is 60 inches. Sur-
face runoff is slow, and the erosion hazard is moderate.
This soil is used mainly for irrigated crops, hay, and
pasture. Some areas are used for grazing and wildlife
habitat.
This soil is irrigated mainly by corrugations. Sprinklers
are also suitable. This soil erodes easily. Such practices
as minimum tillage, grassed waterways, and tail water
control reduce the danger of excessive erosion. Drop
structures in irrigation ditches control water and prevent
excessive ditch erosion.
The native vegetation on this soil is mainly need-
Ieandthread, wheatgrasses, and sagebrush.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing maintains and improves range condi-
tion. Reducing brush also improves the range. Seeding
improves range in poor condition. Pubescent wheat -
grass, western wheatgrass, and big bluegrass are suit-
able for seeding. Preparing a seedbed and drilling the
seed are good practices.
This soil has potential as habitat for pheasant, cotton-
tail rabbit, mourning dove, and squirrel. These animals
mostly obtain food and shelter in areas of crops and hay.
This soil has few limitations for community develop-
ment. Low strength and frost action affect structures and
roads. Community sewage systems will be needed if the
population density increases.
This soil is in capability subclasses Ille, irrigated, and
IVe, nonirrigated.
6—Ascalon fine sandy loam, 6 to 12 percent
slopes. This deep, well drained, moderately sloping to
rolling soil is on mesas, terraces, sides of valleys, and
alluvial fans. Elevation ranges from 5,000 to 6,500 feet.
The soil formed in alluvium derived from sandstone and
shale. The average annual precipitation is about 14
inches, the average annual air temperature is about 48
degrees F, and the average frost -free period is about
120 days.
Typically, the surface layer is brown fine sandy loam
about 5 inches thick. The subsoil is brown and yellowish
28
Permeability of the Morval soil is moderate, and availa-
ble water capacity is moderate. Effective rooting depth is
60 inches. Surface runoff is medium, and the erosion
hazard is moderate.
The Tridell soil is deep and well drained. Typically, the
surface layer is brown stony loam 10 inches thick. The
upper part of the underlying material is brown very stony
loam 11 inches thick, and the lower part is pinkish white
very stony loam to a depth of 60 inches.
Permeability of the Tridell soil is moderately rapid, and
available water capacity is low. Effective rooting depth is
60 inches. Surface runoff is medium, and the erosion
hazard is moderate.
Included with these soils in mapping are small areas of
Villa Grove and Zoltay soils on the steeper parts of the
landscape. These areas make up about 15 percent of
the map unit.
These soils are used mainly for grazing.
The native vegetation on the Morval soil is mainly
needleandthread, wheatgrass, and sagebrush. The
native vegetation on the Tridell soil is mainly pinyon,
Utah juniper, and some Rocky Mountain juniper and an
understory mostly of wheatgrass, Indian ricegrass, need-
leandthread, junegrass, serviceberry, bitterbrush, moun-
tainmahogany, and big sagebrush.
When range condition deteriorates, forbs and shrubs
increase. Properly managing grazing maintains and im-
proves range condition. Seeding improves range in poor
condition on gently sloping Morval soils. Bluebunch
wheatgrass, western wheatgrass, and needleandthread
are suitable for seeding. Preparing a seedbed and drilling
the seed are good practices. Reducing brush improves
range that is producing more shrubs than are normally
found in the potential plant community. Properly manag-
ing the vegetation on the Tridell soil maintains wood
production and grazing. Selectively thinning pinyon and
juniper improves grazing and provides firewood, posts,
and Christmas trees.
The Tridell soil is suited to production of pinyon and
Utah juniper. It can produce 8 cords of wood per acre
when trees more than 4.5 feet tall reach an average
diameter (at one foot) of 5 inches. Special care is
needed to prevent erosion during harvest. The low avail-
able water capacity affects survival of seedlings.
Mule deer, wild turkey, and squirrel find habitat on
these soils.
Community development is limited by large stones. Cut
slopes are difficult to revegetate because of the stones
and because of the shrink -swell potential and frost
action of the Morval soil.
This complex is in capability subclass Vle, nonirrigated.
46—Nihill channery loam, 1 to 6 percent slopes.
This deep, well drained, nearly level to gently sloping soil
is on alluvial fans and sides of valleys. Elevation ranges
from 5,000 to 6,500 feet. The soil formed in alluvium
derived from Green River shale and sandstone. The
SOIL SURVEY
average annual precipitation is about 13 inches, the
average annual air temperature is about 48 degrees F,
and the average frost -free period is about 125 days.
Typically, the surface layer is light gray and very pale
brown channery loam about 11 inches thick. The upper
part of the underlying material is very pale brown very
channery loam about 14 inches thick, and the lower part
is very pale brown extremely channery sandy loam and
extremely channery loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Arvada and Ildefonso soils. The Arvada soils are nearly
level, and Ildefonso soils are steeper. These areas make
up 10 to 15 percent of the map unit.
Permeability is moderately rapid, and available water
capacity is low. Effective rooting depth is 60 inches.
Surface runoff is slow, and the erosion hazard is moder-
ate.
This soil is used mainly for grazing and wildlife habitat.
Some small areas are in irrigated hay and pasture.
This soil is usually irrigated by flooding. Sprinklers are
also suitable. Since this soil is droughty, frequent irriga-
tion is needed to grow hay or pasture. Drop structures in
irrigation ditches prevent ditch erosion. Keeping the irri-
gation run short prevents too deep percolation.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing maintains and improves range condi-
tion. Reducing brush improves the range. Seeding im-
proves range in poor condition. Crested wheatgrass,
western wheatgrass, and Russian wildrye are suitable for
seeding. Preparing a seedbed and drilling the seed are
good practices.
Mule deer, cottontail rabbit, chukar, and squirrel find
habitat on this soil.
This soil has few limitations for community develop-
ment. Community sewage facilities will be needed if pop-
ulation density increases.
This soil is in capability subclasses IVe, irrigated, and
Vle, nonirrigated.
47—Nihill channery loam, 6 to 25 percent slopes.
This deep, well drained, moderately sloping to hilly soil is
on alluvial fans and sides of valleys. Elevation ranges
from 5,000 to 6,500 feet. This soil formed in alluvium
derived from Green River shale and sandstone. The
average annual precipitation is about 13 inches, the
average annual air temperature is about 48 degrees F,
and the average frost -free period is about 125 days.
Typically, the surface layer is light gray and very pale
brown channery loam about 11 inches thick. The upper
part of the underlying material is very pale brown very
channery loam about 7 inches thick, and the lower part
is very pale brown extremely channery sandy loam and
extremely channery loam to a depth of 60 inches.
RIFLE AREA, COLORADO
The native vegetation on this soil, because it faces
north and east, is mainly Gambel oak, serviceberry,
snowberry, and elk sedge.
When range condition deteriorates, shrubs increase.
Properly managing grazing maintains and improves
range condition.
Elk, mule deer, coyote, and grouse find habitat on this
soil.
Use of this soil for community development and as a
source of construction material is limited by depth to
rock and steep slopes.
This soil is in capability subclass Vile, nonirrigated.
53—Parachute-Rhone loams, 5 to 30 percent
slopes. These gently sloping to steep soils are on ridge
crests and mountainsides. Elevation ranges from 7,600
to 8,600 feet. The Parachute soil formed in residuum
from sandstone or maristone, and the Rhone soil formed
in residuum from hard, fine-grained sandstone. The aver-
age annual precipitation is about 20 inches, the average
annual air temperature is about 40 degrees F, and the
frost -free period is Tess than 75 days.
The Parachute soil makes up about 55 percent of the
map unit, the Rhone soil makes up about 30 percent,
and soils of minor extent make up 15 percent. The
Parachute soil is mostly on ridge crests, and the Rhone
soil is in gently sloping to moderately sloping areas on
mountainsides.
The Parachute soil is moderately deep and well
drained. Typically, the surface layer is grayish brown
foam about 5 inches thick. The upper part of the subsoil
is very dark grayish brown and brown loam about 13
inches thick, and the lower part is light yellowish brown
extremely channery loam about 11 inches thick. Hard,
fractured sandstone is at a depth of 29 inches (fig. 9).
Permeability of the Parachute soil is moderate, and
available water capacity is low. Effective rooting depth is
.20 to 40 inches. Surface runoff is medium, and the
erosion hazard is moderate.
The Rhone soil is deep and well drained. Typically, the
upper part of the surface layer is brown loam about 8
inches thick, and the lower part is brown sandy clay
loam about 20 inches thick. The underlying material is
brown very channery sandy clay loam about 24 inches
thick. Fractured sandstone is at a depth of 52 inches.
Permeability of the Rhone soil is moderate, and availa-
ble water capacity is moderate to high. Effective rooting
depth is 40 to 60 inches. Surface runoff is slow, and the
erosion hazard is slight.
included with these soils in mapping are areas of Irigul
soils on ridge crests. These areas make up about 10
percent of the map unit.
These soils are used mainly for grazing and wildlife
habitat.
The native vegetation on these soils is mainly needle -
grass, elk sedge, and sagebrush.
31
When range condition deteriorates, forbs and shrubs
increase. Properly managing grazing maintains and im-
proves range condition. Seeding improves range in poor
condition where slope is less than 15 percent. Intermedi-
ate wheatgrass, slender wheatgrass, and mountain and
smooth brome are suitable for seeding. Preparing a
seedbed and drilling the seed are good practices. Re-
ducing brush on slopes of less than 15 percent improves
deteriorated range, but removing brush may damage
deer habitat.
Many deer and some snowshoe hare and blue grouse
find habitat on these soils.
Use of this soil for community development or as a
source of construction material is limited by depth to
rock and steep slopes.
This complex is in capability subclass Vie, nonirrigated.
54—Potts loam, 1 to 3 percent slopes. This deep,
well drained soil is on mesas, benches, and sides of
valleys. Elevation ranges from 5,000 to 7,000 feet. This
soil formed in alluvium derived from sandstone, shale, or
basalt. The average annual precipitation is about 14
inches, the average annual air temperature is about 46
degrees F, and the average frost -free period is about
120 days.
Typically, the surface layer is brown loam about 4
inches thick. The subsoil is reddish brown clay loam
about 24 inches thick. The substratum is pinkish white
loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Olney, Kim, and Ildefonso soils that have slopes of 1 to
3 percent. These areas make up 10 to 15 percent of the
map unit.
Permeability is Moderate, and available water capacity
is high. Effective rooting depth is 60 inches or more.
Surface runoff is slow, and the erosion hazard is slight.
This soil is used mainly for irrigated crops and hay and
for dryland farming. Alfalfa, small grains, and grass -
legume hay are grown.
This soil is usually irrigated by flooding. Drop struc-
tures in irrigation ditches, grassed waterways, and mini-
mum tillage control erosion. Irrigation water should be
carefully managed to avoid piping. Cover crops or stub-
ble mulching also help to limit erosion losses in dry -
farmed areas.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
Pheasant, mourning dove, cottontail rabbit, some mule
deer, and squirrel find habitat on this soil.
Community development and recreation are limited by
low strength and shrink -swell potential. Dwellings and
roads can be designed to compensate for these limita-
tions. Community sewage systems will be needed if the
population density increases.
This soil is in capability subclasses Ille, irrigated, and
Ilic, nonirrigated.
32
55—Potts loam, 3 to 6 percent slopes. This deep,
well drained, moderately sloping soil is on mesas, bench-
es, and sides of valleys. Elevation ranges from 5,000 to
7,000 feet. This soil formed in alluvium derived from
sandstone, shale, or basalt. The average annual precipi-
tation is about 14 inches, the average annual air tem-
perature is about 46 degrees F, and the average frost -
free period is about 120 days.
Typically, the surface layer is brown loam about 4
inches thick. The subsoil is reddish brown clay loam
about 24 inches thick. The substratum is pinkish white
loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Olney, Kim, and Ildefonso soils that have slopes of 3 to
6 percent. These areas make up 10 to 15 percent of the
map unit.
Permeability is moderate, and available water capacity
is high. Effective rooting depth is 60 inches or more.
Surface runoff is slow, and the erosion hazard is moder-
ate.
This soil is used mainly for irrigated crops and hay and
for dryland farming (fig. 10). Alfalfa, small grains, and
grass -legume hay are grown. Small areas are used for
grazing.
These soils are usually irrigated by flooding. Drop
structures in irrigation ditches, grassed waterways, and
minimum tillage prevent serious erosion. Irrigation water
should be carefully managed to avoid piping and erosion.
Cover crops or stubble mulching also help to limit ero-
sion in dryfarmed areas.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing maintains and improves range condi-
tion. Reducing brush improves the range. Seeding im-
proves range in poor condition. Crested wheatgrass,
western wheatgrass, and Russian wildrye are suitable for
seeding. Preparing a seedbed and drilling the seed are
good practices.
Pheasant, mourning dove, cottontail rabbit, some mule
deer, and squirrel find habitat on this soil.
Community development and recreation are limited by
low strength and the shrink -swell potential. Dwellings
and roads can be designed to overcome these limita-
tions. Community sewage systems will be needed if the
population density increases.
This soil is in capability subclasses II le, irrigated, and
IVe, nonirrigated.
56—Potts loam, 6 to 12 percent slopes. This deep,
well drained, moderately sloping to rolling soil is on
mesas, benches, and sides of valleys. Elevation ranges
from 5,000 to 7,000 feet. This soil formed in alluvium
derived from sandstone, shale, or basalt. The average
annual precipitation is about 14 inches, the average
SOIL SURVEY
annual air temperature is about 46 degrees F, and the
average frost -free period is about 120 days.
Typically, the surface layer is brown loam about 4
inches thick. The subsoil is reddish brown clay loam
about 24 inches thick. The substratum is pinkish white
loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Kim, Olney, and Ildefonso soils that have slopes of 6 to
12 percent. These areas make up 10 to 15 percent of
the map unit.
Permeability is moderate, and available water capacity
is high. Effective rooting depth is 60 inches or more.
Surface runoff is medium, and the erosion hazard is
severe.
This soil is used mainly for grazing, wildlife habitat, and
some dryland farming (fig. 10). Wheat, barley, and oats
are grown.
Minimum contour tillage and stubble mulching help to
prevent excessive erosion.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing improves and maintains range condi-
tion. Reducing brush improves range. Seeding improves
range in poor condition. Crested wheatgrass, western
wheatgrass, and Russian wildrye are suitable for seed-
ing. Preparing a seedbed and drilling the seed are good
practices.
Community development and recreation are limited by
low strength, shrink -swell potential, and slope. Dwellings
and roads can be designed to overcome these limita-
tions. Community sewage systems will be needed if the
population density increases.
This soil is in capability subclass IVe, irrigated and
nonirrigated.
57—Potts-Ildefonso complex, 3 to 12 percent
slopes. These gently sloping to rolling soils are on
mesas and sides of valleys. Elevation ranges from 5,000
to 6,500 feet. The Potts soil formed in alluvium derived
from sandstone, shale, or basalt. The Ildefonso soil
formed in very strongly calcareous, basaltic alluvium and
small amounts of eolian material. The average annual
precipitation is about 14 inches, the average annual air
temperature is about 46 degrees F, and the average
frost -free period is about 120 days.
The Potts soil makes up about 60 percent of the map
unit, and the lldefonso soils makes up about 30 percent.
The Potts soil is on slightly concave positions, and the
Ildefonso soil is on the breaks of steeper slopes.
The Potts soil is deep and well drained. Typically, the
surface layer is brown loam about 4 inches thick. The
subsoil is reddish brown clay loam about 24 inches thick.
The substratum is pinkish white loam that extends to a
depth of 60 inches.
RIFLE AREA, COLORADO 33
Permeability of the Potts soil is moderate, and availa-
ble water capacity is high. Effective rooting depth is 60
inches or more. Surface runoff is slow, and the erosion
hazard is moderate.
The Ildefonso soil is deep and well drained. Typically,
the surface layer is brown stony loam about 8 inches
thick. The underlying material is white, calcareous very
stony loam that extends to a depth of 60 inches.
Permeability of the Ildefonso soil is moderately rapid,
and available water capacity is low. Effective rooting
depth is about 60 inches. Surface runoff is slow, and the
erosion hazard is moderate.
Included with this soil in mapping are small areas of
Olney and Kim soils that have slopes of 3 to 12 percent.
These areas make up 5 to 15 percent of the map unit.
These soils are used mainly for limited grazing and
wildlife habitat.
The native vegetation on the Potts soil is mainly
wheatgrass, needleandthread, and sagebrush. The
native vegetation on the Ildefonso soil is mainly pinyon
and Utah juniper and an understory of Indian ricegrass,
wheatgrass, junegrass, serviceberry, bitterbrush, and sa-
gebrush.
When the understory vegetation deteriorates, grasses
almost disappear and forbs and shrubs increase. Proper-
ly managing grazing maintains and improves range con-
dition on both soils. Seeding improves range on the
Potts soil if it is in poor condition. Crested wheatgrass,
western wheatgrass, and Russian wildrye are suitable for
seeding. Preparing a seedbed and drilling the seed are
good practices. Reducing brush on the Potts soil im-
proves the range. Properly managing the vegetation on
the Ildefonso soil maintains wood production and graz-
ing. Selectively thinning pinyon and juniper improves
grazing and provides firewood, posts, and Christmas
trees.
The Ildefonso soil is suited to production of pinyon and
Utah juniper. It can produce 9 cords of wood per acre
when trees more than 4.5 feet tall reach an average
diameter (at one foot) of 5 inches. The low available
water capacity affects survival of tree seedlings.
Mule deer, wild turkey, chukar, gray squirrel, cottontail
rabbit, and some pheasant find habitat on these soils.
Community development is limited on the Potts soil by
low strength, shrink -swell potential, and slope. Communi-
ty development is limited on the Ildefonso soil by steep
slopes.
This complex is in capability subclass Vie, nonirrigated.
58—Potts-Ildefonso complex, 12 to 25 percent
slopes. These strongly sloping to hilly soils are on
mesas, alluvial fans, and sides of valleys. Elevation
ranges from 5,000 to 6,500 feet. The Potts soil formed in
alluvium derived from sandstone, shale, or basalt. The
Ildefonso soil formed in very strongly calcareous, basaltic
alluvium and small amounts of eolian material. The aver-
age annual precipitation is about 14 inches, the average
annual air temperature is about 46 degrees F, and the
average frost -free period is about 120 days.
The Potts soil makes up about 60 percent of this unit,
and the Ildefonso soil makes up about 30 percent. The
Potts soil is in slightly concave positions, and the Ilde-
fonso soil is on the breaks of steeper slopes.
The Potts soil is deep and well drained. Typically, the
surface layer is brown loam about 4 inches thick. The
subsoil is reddish brown clay loam about 24 inches thick.
The substratum is pinkish white loam to a depth of 60
inches.
Permeability of the Potts soil is moderate, and availa-
ble water capacity is high. Effective rooting depth is 60
inches or more. Surface runoff is medium, and the ero-
sion hazard is moderate.
The Ildefonso soil is deep and well drained. Typically,
the surface layer is brown stony loam about 8 inches
thick. The underlying material is white, calcareous very
stony loam to a depth of 60 inches.
Permeability of the Ildefonso soil is moderately rapid,
and available water capacity is low. Effective rooting
depth is about 60 inches. Surface runoff is medium, and
the erosion hazard is moderate.
included with this soil in mapping are small areas of
Morval and Lazear soils. The Morval soils are at the
higher elevations. The Lazear soils are shallow and are
on ridge crests and steep mountainsides. These areas
make up 10 to 18 percent of the map unit.
These soils are used mainly for limited grazing and
wildlife habitat.
The native vegetation on the Potts soil is mainly
wheatgrass, needleandthread, and sagebrush. The
native vegetation on the Ildefonso soil is mainly pinyon
and Utah juniper and an understory of Indian ricegrass,
wheatgrass, junegrass, serviceberry, bitterbrush, and sa-
gebrush.
When the understory vegetation deteriorates, grasses
almost disappear and forbs and shrubs increase. Proper-
ly managing grazing maintains and improves range con-
dition on both soils. Seeding improves range in poor
condition in less sloping areas of the Potts soil. Blue -
bunch wheatgrass, western wheatgrass, and need-
leandthread are suitable for seeding. Preparing the
seedbed and drilling the seed are good practices. Con-
trolling brush on the Potts soil improves range that is
producing more shrubs than are normally found in the
potential plant community. Properly managing the under -
story vegetation on the Ildefonso soil maintains wood
production and grazing. Selectively thinning pinyon and
juniper improves grazing and provides firewood, posts,
and Christmas trees.
The Ildefonso soil is suited to production of pinyon and
Utah juniper. It can produce 9 cords of wood per acre
when trees more than 4.5 feet tall reach an average
diameter (at one foot) of 5 inches. The low available
water capacity affects survival of tree seedlings.
36
more. Organic matter content is high. Surface runoff is
slow, and the erosion hazard is slight. This soil is occa-
sionally flooded for brief periods between April and Sep-
tember.
This soil is used mainly for grazing, wildlife habitat, and
limited irrigated hay. Good management of water and
fertilizer maintains or improves the production of native
hay.
The native vegetation on this soil is mainly wildrye,
wheatgrass, needlegrass, and small amounts of forbs
and shrubs.
When range condition deteriorates, dandelion, yarrow,
rabbitbrush, big sagebrush, and Kentucky bluegrass in-
crease. Properly managing grazing maintains and im-
proves range condition. Basin wildrye, slender wheat -
grass, and western wheatgrass are suitable for seeding.
Preparing a seedbed and drilling the seed are good
practices. Fencing protects this more productive soil.
This soil is lower than surrounding soils and usually con-
tains the water supply for livestock. Reducing brush im-
proves the range.
Mule deer, snowshoe hare, elk, coyote, and blue
grouse find habitat on this soil.
Community development is limited by flooding. This
soil is a good source of topsoil.
This soil is in capability subclass VIe, nonirrigated.
64—Tanna silty clay loam, 25 to 45 percent slopes.
This moderately deep, well drained soil is on mountain-
sides. Elevation ranges from 6,500 to 7,600 feet. This
soil formed in material weathered from shale. The aver-
age annual precipitation is about 17 inches, the average
annual air temperature is about 43 degrees F, and the
average frost -free period is about 100 days.
Typically, the surface layer is grayish brown silty clay
loam about 9 inches thick. The subsoil is light brownish
gray clay and Tight gray silty clay about 15 inches thick.
The substratum is light gray channery clay loam about 6
inches thick. Weathered shale is at a depth of 30 inches.
Included with this soil in mapping are small areas of
Dollard clay and shale outcrop on steep and very steep
mountainsides. These areas make up 10 to 15 percent
of the map unit.
Permeability is slow, and available water capacity is
low. Effective rooting depth is 20 to 40 inches. Surface
runoff is rapid, and the erosion hazard is severe.
This soil is used mainly for wildlife habitat and limited
grazing.
The native vegetation on this soil is mainly Gambel
oak, serviceberry, snowberry, and elk sedge.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, Kentucky
bluegrass, weeds, and annual plants are numerous.
Properly managing grazing maintains and improves
range condition.
Mule deer, wild turkey, and cottontail rabbit find habitat
on this soil.
SOIL SURVEY
Use of this soil for community development, for sani-
tary facilities, and as a source of construction material is
limited by steep slopes, high clay content, low strength,
depth to bedrock and shrink -swell potential. Road con-
struction and building foundations can be designed to
reduce the effects of shrinking and swelling. A good
drainage system reduces soil slumping.
This soil is in capability subclass Vile, nonirrigated.
65—Torrifluvents, nearly level. This broadly defined
unit consists of deep, well drained to somewhat poorly
drained, nearly level soils on flood plains adjacent to the
Colorado and Roaring Fork Rivers and their major tribu-
taries. Slope is 0 to 6 percent. The soils formed in
alluvium.
These soils are stratified and vary widely in texture
and depth. The surface layer ranges from loamy sand
and fine sandy loam to silty loam and clay loam. The
underlying layers are generally sandy loam or loam strati-
fied with sand, gravel, and cobbles. In some areas gravel
and cobbles are on or near the surface.
The water table fluctuates between depths of 2 and 4
feet and in some years is near the surface during spring
runoff from snowmelt. These soils are subject to brief,
occasional flooding late in spring and early in summer.
Included in mapping are small isolated areas of Wann
soils that have slopes of 1 to 3 percent. Small areas of
soils that are moderately to severely affected by alkali
are identified by an alkali spot symbol. Small, isolated
areas where water stands at or near the surface all year
are identified by wet spot and marsh spot symbols.
These areas make up 15 percent of the map unit.
These soils are used for wildlife habitat, recreation,
and some grazing.
The native vegetation is mainly cottonwood, willow,
tamarisk and water -tolerant grasses, sedges, and rushes.
In many areas these soils are suited to production of
Fremont cottonwood. The soils are capable of producing
230 board feet of timber per acre from a fully stocked,
even -aged stand of 40 -year-old trees.
Where these soils are accessible, they provide shelter
and forage for livestock.
Mule deer, cottontail rabbit, coyote, bobcat, ducks,
geese, and other native birds find food and shelter on
these soils. Where feasible, planting food plots, trees
and shrubs, and nesting cover enhances the habitat for
upland wildlife. Where the water table is high, open
water for waterfowl and fish can be developed by blast-
ing or by excavating.
These soils have potential for recreation. Wildlife is
abundant, and the nearby rivers can be used for rafting
and canoeing. Community development is very limited by
flooding, the seasonal high water table, and variable
texture. Onsite investigation is necessary.
These soils are in capability subclass Vllw, nonirrigat-
ed.
RIFLE AREA, COLORADO 39
and big bluegrass are suitable for seeding. Preparing a
seedbed and drilling the seed are good practices.
Cottontail rabbit, mourning dove, wild turkey, and mule
deer find habitat on this soil.
Community development and recreation are limited by
steep slopes, low strength, and clayey texture.
This soil is in capability subclass Vle, nonirrigated.
71—Villa Grove-Zoltay loams, 15 to 30 percent
slopes. These moderately steep to hilly soils are on
mountainsides and alluvial fans. Elevation ranges from
7,500 to 7,600 feet. The Villa Grove soil formed in mixed
alluvium, and the Zoltay soil formed in basaltic alluvium.
The average annual precipitation is about 16 inches, the
average annual air temperature is about 43 degrees F,
and the average frost -free period is about 100 days.
The Villa Grove soil makes up about 50 percent of the
map unit, and the Zoltay soil makes up about 40 per-
cent. The Villa Grove soil is in the steeper areas, and the
Zoltay soil is in the less sloping areas.
The Villa Grove soil is deep and well drained. Typical-
ly, the surface layer is dark grayish brown loam about 4
inches thick. The upper part of the subsoil is brown clay
loam about 11 inches thick, and the lower part is brown
loam about 33 inches thick. The substratum is pale
brown loam to a depth of 60 inches.
Permeability of the Villa Grove soil is moderately slow,
and available water capacity is high. Effective rooting
depth is 60 inches or more. Surface runoff is slow, and
the erosion hazard is slight.
The Zoltay soil is deep and well drained. Typically, the
surface layer is dark grayish brown loam about 19 inches
thick. The subsoil is brown cobbly clay or cobbly clay
loam about 35 inches thick. The substratum is pinkish
gray cobbly clay to a depth of 60 inches.
Permeability of the Zoltay soil is slow, and available
water capacity is high. Effective rooting depth is 60
inches or more. Surface runoff is medium, and the ero-
sion hazard is moderate.
Included with these soils in mapping are small areas of
Vale, Potts, and Morval soils. The Vale and Potts soils
are on small, isolated remnants of mesas. The Morval
soils are on small undulations that have slopes of 3 to
12 percent. These areas make up 10 percent of the map
unit.
These soils are used mainly for grazing, wildlife habi-
tat, and some irrigated pasture.
The native vegetation on these soils is mainly Gambel
oak, serviceberry, snowberry, and elk sedge.
When range condition deteriorates, forbs and shrubs
increase. When the range is in poor condition, Kentucky
bluegrass, undesirable weeds, and annual plants are nu-
merous. Properly managing grazing maintains and im-
proves range condition. Controlling brush and seeding
improve forage production in the less sloping areas. Pu-
bescent wheatgrass, western wheatgrass, and big blue-
grass are suitable for seeding. Preparing a seedbed and
drilling the seed are good practices.
Many deer and some cottontail rabbit, squirrel, and
grouse find habitat on this soil.
Community development and recreation are limited by
moderately steep slopes, shrink -swell potential, and low
strength.
This complex is in capability subclass Vie, nonirrigated.
72—Wann sandy loam, 1 to 3 percent slopes. This
deep, somewhat poorly drained, nearly level to gently
sloping, low-lying soil is on terraces and bottom land in
valleys. Elevation ranges from 5,000 to 6,500 feet. The
soil formed in alluvium derived primarily from sandstone
and shale. The average annual precipitation is about 12
inches, the average annual air temperature is about 48
degrees F, and the average frost -free period is about
120 days.
Typically, the upper part of the surface layer is dark
grayish brown sandy loam about 8 inches thick, and the
lower part is dark grayish brown fine sandy loam about 4
inches thick. The upper part of the underlying material is
mottled, light brownish gray fine sandy loam and sandy
loam about 24 inches thick, and the lower part is mottled
light brownish gray coarse sandy loam to a depth of 60
inches.
Included with this soil in mapping are small areas of
Kim and Arvada soils and Torrifluvents. These soils have
slopes of 1 to 3 percent. These areas make up 5 to 18
percent of the map unit.
Permeability is moderately rapid, and available water
capacity is high. Effective rooting depth varies with the
level of the water table but is usually about 2 feet.
Surface runoff is slow, and the erosion hazard is moder-
ate. Depth to the water table ranges from 2 to 3 feet.
The level of the water table varies with the amount of
irrigation water applied to this soil and surrounding soils.
Water ponds in spring. This soil is occasionally flooded
for brief periods between April and July.
This soil is used mainly for grazing, grass or legume
hay, and pasture.
Tile drains and improved water management increase
the potential for crops. This soil is usually irrigated by
furrows or flooding. Sprinklers are also well suited.
The native vegetation on this soil is mainly alkali saca-
ton, sattgrass, wheatgrass, sedges, and rabbitbrush.
When range condition deteriorates, shrubs and salt -
grass increase. When the range is in poor condition,
undesirable weeds and annual plants are abundant.
Properly managing grazing maintains and improves
range condition. Alkali sacaton and western wheatgrass
are suitable for seeding. Preparing a seedbed and drilling
the seed are good practices. Controlling brush improves
range that is producing more woody shrubs than is nor-
mally found in the potential plant community, but care
should be taken to leave stands of fourwing sattbush.
RIFLE AREA, COLORADO 97
TABLE 6. --RANGELAND PRODUCTIVITY AND CHARACTERISTIC PLANT COMMUNITIES
[Only the soils that support rangeland vegetation suitable for grazing are listed]
Soil name and
map symbol
Range site name
1 Total
production ;
;Kind of year
1 ;Brushy Loam ;Favorable
Almy Variant ; ;Normal
Unfavorable
4
2*:
Arle ;Loamy Slopes
1
;
Ansari ;Loamy Breaks
Rock outcrop.
1
3 ;Salt Flats
Arvada ;
4 ;Alkaline Slopes
Arvada
5, 6
Ascalon
7*:
Ascalon
;Deep Loam
;
;Deep Loam
;
See footnote at end of table.
;Favorable
1Normal
;Unfavorable
;
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
1
1Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
1Normal
;Unfavorable
1 Characteristic vegetation 1Compo-
Dry ; Isition
weight 1
Lb7acre; 1 Pct
3,000 ;Mountain brome 1 20
2,000 ;Gambel oak 1 20
1,500 ;Elk sedge 1 10
;Slender wheatgrass 1 5
;Western wheatgrass ---1 5
;Mountain snowberry 1 5
;Nodding bromegrass 1 5
;Utah serviceberry 1 5
;Aspen peavine 1 5
;Big sagebrush 1 5
;Mountain snowberry 1 5
;Saskatoon serviceberry 1 5
; ;
; ;
1,200 ;Western wheatgrass 1 20
900 ;Indian ricegrass 1 15
500 ;Bluebunch wheatgrass 1 15
1Gambel oak ; 10
1Needleandthread 1 8
;Utah serviceberry 1 7
;True mountainmahogany 1 7
;Big sagebrush 1 5
850 ;Indian ricegrass 1
i
1
700 ;Western wheatgrass
500 ;Pinyon
;Juniper
;Big sagebrush
900
650
500 Inland saltgrass
Winterfat
Bottlebrush squirreltail
;Gardner saltbush
1Greasewood
;Utah serviceberry
1Needleandthread
•
;Western wheatgrass
Alkali sacaton
1 700 ;Big sagebrush
1 500 ;Greasewood
1 400 1Galleta
;Shadscale
1 1Bottlebrush squirreltail
1 ;Western wheatgrass
; ;
1 1,800 1Needleandthread
1 1,500 ;Western wheatgrass
1 700 1Bluebunch wheatgrass
;Big sagebrush
1 ;Utah serviceberry
; ;
; ;
1 1,800 1Needleandthread
1 1,500 ;Western wheatgrass
1 700 1Bluebunch wheatgrass
;Big sagebrush
;Utah serviceberry
1
1 20
1 20
1 10
20
15
15
5
5
5
5
10
10
10
5
5
5
5
1 10
1 5
1 5
1
1 20
1 15
1 10
1 10
1 5
1
1 20
1 15
10
1 10
1 5
RIFLE AREA, COLORADO 101
TABLE 6. --RANGELAND PRODUCTIVITY AND CHARACTERISTIC PLANT COMMUNITIES --Continued
Soil name and
map symbol
Range site name
; Tota production
, 1 ,
;Kind of year Dry I
weight I
Characteristic vegetation
;Compo-
sition
45*:
Morval
46, 47
Ni hill
49, 50, 51
Olney
52
Parachute
53*:
Parachute
Rhone
;Deep Loam
1
1 ,
;Rolling Loam
;Roiling Loam
,
,
;Brushy Loam
54, 55, 56
Potts
57*, 58*, 59*:
Potts
;Mountain Loam
,
I
;Mountain Loam
Rolling Loam
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
,
1Favorable
;Normal
;Unfavorable
;Rolling Loam
;Favorable
;Normal
;Unfavorable
See footnote at end of table.
;Favorable
;Normal
1Unfavorable
;Favorable
;Normal
;Unfavorable
Lb/acre,
1,800 ;Western wheatgrass
1,500 1Needleandthread
700 ;Big sagebrush
1,000
IBluebunch wheatgrass
;Utah serviceberry
1
;Western wheatgrass
800 IBluebunch wheatgrass
1 500 ;Big sagebrush
;Needleandthread
1,000
;Indian ricegrass
;Low rabbitbrush
;Western wheatgrass
800 IBluebunch wheatgrass
500 ;Big sagebrush
3,000
2,000
1,500
1,800
1,500
1,200
;Needleandthread
;Indian ricegrass
1Rabbitbrush
Pet
20
1 15
10
10
5
20
15
15
10
;Utah serviceberry
;Gambel oak
;Elk sedge
;Mountain brome
;Columbia needlegrass
;Letterman needlegrass
;Idaho fescue
10
5
;Mountain snowberry
;Big sagebrush
;Letterman needlegrass
;Columbia needlegrass
IElk sedge
;Big sagebrush
;Idaho fescue
Bluebunch wheatgrass
Big bluegrass
Utah serviceberry
;Mountain snowberry
;Douglas rabbitbrush
1,800 ;Letterman needlegrass
1,500 ;Columbia needlegrass
1,200 ;Big sagebrush
1,000
800
500
Elk sedge
IBluebunch wheatgrass
;Idaho fescue
;Big bluegrass
Utah serviceberry
Mountain snowberry
Douglas rabbitbrush
'Western wheatgrass
'Needleandthread
IBluebunch wheatgrass
;Big sagebrush
;Indian ricegrass
;Low rabbitbrush
;Squirreltail
1,000 ;Western wheatgrass
800 ;Needleandthread
20
15
15
10
10
5
15
15
10
10
5
5
5
5
5
1 15
1 10
1 10
1 10
1 5
1 5
1 5
1 5
1 5
1 5
1 15
1 10
1 10
I 10
I 5
1 5
1 5
1 5
1 5
1 5
1
1
1 25
1 15
1 15
1 10
1 10
5
5
500 IBluebunch wheatgrass
;Big sagebrush
;Indian ricegrass
;Low rabbitbrush
1Squirreltail
1 25
1 15
1 10
10
10
1 5
1 5
1
102
TABLE 6. --RANGELAND PRODUCTIVITY AND CHARACTERISTIC PLANT COMMUNITIES --Continued
SOIL SURVEY
Soil name and
map symbol
Range site name
60
Rhone
:Mountain Loam
61 :Brushy Loam
Rhone
63 ;Mountain
Mountain Swale
Silas ;
64 ;Brushy Loam
Tanna
68, 69, 70 ;Deep Loam
Vale
71*:
Villa Grove
Zoltay
72
Wann
;Brushy Loam
:Brushy Loam
:Salt Meadow
: Total production
:Kind of year ; Dry :
:weight I
;Favorable
:Normal
;Unfavorable
;Favorable
;Normal
:Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
;Normal
:Unfavorable
;Favorable
;Normal
;Unfavorable
;Favorable
:Normal
:Unfavorable
;Favorable
:Normal
:Unfavorable
Characteristic vegetation
;Compo-
sition
Lb/acre;
1,800 :Letterman needlegrass
1,500 :Mountain brome
1,200 :Big sagebrush
3,000
:Columbia needlegrass
:Big bluegrass
:Elk sedge
:Idaho fescue
;Rabbitbrush
:Utah serviceberry
:Mountain snowberry
;Gambel oak
2,000 :Utah serviceberry
1,500 ;Elk sedge
:Mountain brome
3,000
2,500
2,000
:Letterman needlegrass
;Columbia needlegrass
:Idaho fescue
;Mountain snowberry
Basin wildrye
Western wheatgrass
Slender wheatgrass
Columbia needlegrass
Sedge
Big sagebrush
Mountain snowberry
3,000 ;Mountain brome
2,000 IGambel oak
1,500 ;Elk sedge
1,800
1,500
900
3,000
2,000
1,500
3,000
:Utah serviceberry
;Western wheatgrass
:Slender wheatgrass
:Western wheatgrass
:Prairie sandreed
;Needleandthread
IBlue grama
:Green needlegrass
1Rabbitbrush
;Utah serviceberry
:Gambel oak
;Utah serviceberry
:Western wheatgrass
;Elk sedge
:Mountain brome
:Mountain snowberry
:Gambel oak
2,000 :Utah serviceberry
1,500 :Mountain brome
;Elk sedge
2,500
2,000
1,500
:Western wheatgrass
;Mountain snowberry
:Alkali sacaton
:Saltgrass
;Baltic rush
;Low rabbitbrush
:Skunkbush shumac
:Sedge
Pct
10
10
10
10
5
5
5
5
5
5
15
15
10
10
5
5
5
5
25
15
10
10
10
5
5
20
15
10
10
5
5
20
15
10
10
10
5
5
15
15
10
10
10
5
20
15
10
10
5
5
35
10
10
10
10
10
* See description of the map unit for composition and behavior characteristics of the map unit.
• •
RIFLE AREA, COLORADO 103
TABLE 7. --BUILDING SITE DEVELOPMENT
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," and "severe." Absence of an entry indicates that the soil was not rated]
Soil name and
map symbol
Shallow
excavations
Dwellings
without
basements
Dwellings
with
basements
1 Severe: Severe:
Almy Variant , slope. slope.
I
I
I
2*: ;
Arle (Severe:
I slope,
I large stones.
;
Ansari :Severe:
I slope,
I depth to rock.
;
Rock outcrop. ;
;
3 :Moderate:
Arvada I too clayey.
;
I
4 :Moderate:
Arvada I slope,
I too clayey.
;
5 ;Slight (Moderate:
Ascalon , low strength.
1
I
6 ;Moderate: ;Moderate:
Ascalon I slope. I slope,
1 I low strength.
1 ;
1 ,
I ,
7*:
*: I
Ascalon ;Moderate: (Moderate:
I slope. I slope,
: ; low strength.
I
I ,
I,
I ,
Pena :Severe: ;Severe:
I slope, I slope,
I large stones. I large stones.
:
8*: ;
Atencio ;Severe:
;Severe:
; slope,
; large stones.
;Severe:
; slope,
; depth to rock.
;Severe:
1 shrink -swell.
;Severe:
I shrink -swell.
;Slight
cutbanks cave. ;
: ;
Azeltine ;Severe: ;Moderate:
( cutbanks cave, 1 large stones.
large stones. .
,
,
9* ; ,
Badland I
,
I
10 ;Moderate: ;Slight ;Moderate:
Begay ; large stones. . ; large stones.
: ; :
11 ;Moderate: ;Moderate: ;Moderate:
Begay I slope, I slope. I slope,
I large stones. I I large stones.
12*: I I
Bucklon
;Severe: ;Severe: '
depth to rock, ISdepth:
I
, depth to rock, I depth to rock,
{ slope. ; slope. ; slope.
I
1 I ,
I ,
Severe:
slope.
;Severe:
I slope,
large stones.
;Severe:
Small
commercial
buildings
Local roads
and streets
;Severe: ;Severe:
I slope. ; slope,
; low strength.
(Severe:
I slope,
I large stones.
;Severe:
I slope, I slope,
I depth to rock. I depth to rock.
I.
I ,
I ,
I
I
Severe:
shrink -swell.
;Severe:
I shrink -swell.
;Moderate:
I low strength.
(Moderate:
I slope,
I low strength.
:Moderate:
I slope,
low strength.
Severe:
slope,
I large stones.
1
1
;Slight
1
;Moderate: ;Moderate:
large stones. I large stones.
I ,
I ,
I ,
Severe:
shrink -swell.
:Severe:
I slope,
I shrink -swell.
;Moderate:
I low strength.
;Severe:
I slope.
1 '
;Severe:
I slope.
;Severe:
I slope,
I large stones.
:Slight
See footnote at end of table.
;Slight
(Severe:
I slope.
Severe:
depth to rock,
slope.
;Severe:
: slope,
; large stones.
;Severe:
I slope,
I depth to rock.
;Severe:
I shrink -swell,
I low strength.
:Severe:
I shrink -swell,
I low strength.
:Moderate:
I frost action,
I low strength.
:Moderate:
I slope,
I frost action,
; low strength.
:Moderate:
I slope,
I frost action,
low strength.
I
:Severe:
( slope,
I large stones.
;Slight.
:Moderate:
; large stones.
Slight.
:
:Moderate:
slope.
;
1Severe:
: depth to rock,
I slope,
low strength.
1
106
TABLE 7. --BUILDING SITE DEVELOPMENT --Continued
SOIL SURVE
Soil name and 1 Shallow
map symbol 1 excavations
Dwellings
without
basements
Dwellings
with
basements
43 ;Moderate: }Severe:
Limon I too clayey. I shrink -swell.
,
I I
44 (Slight :Moderate:
Morval 1 I shrink -swell.
l I
45*: 1
Morval }Moderate: :Moderate:
I slope. I shrink -swell,
.
. I slope.
1 [
Tridell ;Severe: ;Severe:
I slope, I slope,
I large stones. I large stones.
`
46
;Severe: (Slight
Nihill cutbanks cave. .
1
47- Severe: ;Severe:
Nihill slope, 1 slope.
cutbanks cave. .
i
48 ;Severe:
Northwater ! slope.
.
49 ;Slight
Olney }
.
50 !Slight
Olney 1
I
Severe:
1 slope.
;Light
;Slight
!Moderate:
1 slope.
:Severe:
1 slope,
I depth to rock.
;Severe:
1 slope,
I depth to rock.
1Moderate:
1 slope,
I depth to rock.
1
!Slight
51
Olney
52
Parachute
53*:
Parachute
Rhone
54 -
Potts
55
Potts
56—
Potts
57*:
Potts
Ildefonso
}Severe:
1 shrink -swell.
Moderate:
shrink -swell.
:Moderate:
shrink -swell,
I slope.
i
;Severe: Severe: Severe:
slope, slope, slope,
large stones. large stones. I large stones.
Slight Slight ;Slight.
Severe: ;Severe: ;Severe:
slope, slope. ; slope.
:Severe: Severe: !Severe:
slope. ! slope. I slope.
c
;Slight ;Slight ;Slight.
' ! I
' i i
:Slight !Slight ;Slight.
Moderate: [Moderate: ;Severe: ;Moderate:
slope. I slope. I slope. 1 slope.
Severe: [Severe: [Severe: [Severe:
slope. 1 slope, I slope. 1 slope.
depth to rock. 1 1
I ,
I 1
!Severe: [Severe: [Severe:
1 slope, [ slope. I slope.
1 depth to rock. 1 1
i
:Moderate: ;Severe: ;Moderate:
I slope, 1 slope. I slope,
1 depth to rock, : : frost action,
shrink -swell. ; I shrink -swell.
;Slight :Slight
;Slight ;Moderate:
1 slope.
Small
commercial
buildings
1Severe:
1 shrink -swell.
:Moderate:
1 slope,
1 shrink -swell.
!Severe:
slope.
Local roads
and streets
Severe:
low strength,
shrink -swell.
:Moderate:
1 low strength,
I shrink -swell,
I frost action.
!Moderate:
1 low strength,
shrink -swell,
slope.
!Severe:
slope.
:Moderate:
I slope,
I shrink -swell.
:Slight
;Slight :Slight
:Moderate: ;Moderate:
slope. I slope.
i I
,
;Slight 'Slight
;Severe:
1 large stones.
See footnote at end of table.
Severe:
;Slight.
;Slight.
Severe: ;Moderate:
slope. 1 slope.
1Moderate:
} slope.
i
:Slight
Severe:
large stones. I large stones.
;Moderate: ;Slight.
slope. 1
Severe: ;Severe:
1 slope, 1 large stones.
1 large stones. I
4
• •
1IFLE AREA, COLORADO 107
TABLE 7. --BUILDING SITE DEVELOPMENT --Continued
Soil name and ; Shallow Dwellings
map symbol ; excavations , without
basements
Dwellings
with
basements
Small
commercial
buildings
Local roads
and streets
8*, 59*:
Potts
Ildefonso
10 , 61
Rhone
2*:
Rock outcrop.
Torriorthents.
Silas
Tanna
6*.
Torrifluvents
Torriorthents.
Camborthids.
Rock outcrop.
57*:
Torriorthents.
Rock outcrop.
;Severe:
slope.
;Severe:
1 slope,
i large stones.
;Severe:
I slope.
;Moderate:
1 floods.
;Severe:
slope.
1
,
1
1
1
t
1
,
t
1 ,
,
1
1 t
t
f
Severe: ;Severe:
slope. I slope.
Severe: ;Severe:
slope, I slope,
large stones. ; large stones.
1 ,
I ,
;Severe: ;Severe:
slope. 1 slope.
, I
t i
1 ,
, t
t I
;Severe: ;Severe:
1 floods. 1 floods.
I t
;Severe: ;Severe:
; slope. ; slope.
t
,
,
:Severe:
I slope.
;Severe:
; slope,
I large stones.
;Severe:
I slope.
;Severe:
I floods.
;Severe:
I slope.
1
I I I
;Severe:
slope.
1
;Severe:
; slope,
1 large stones.
;Severe:
I slope.
;Severe:
I floods.
;Severe:
I slope,
I low strength.
58 Slight ;Slight ;Slight Moderate: ;Moderate:
Vale 1 1 1 slope. : low strength.
59 ;Moderate: ;Moderate: ;Moderate: Severe: ;Moderate:
Vale 1 slope. I slope. 1 slope. slope. 1 slope,
1 1 1 i -1 low strength.
70 ;Severe: ;Severe: ;Severe: ;Severe: ;Severe:
Vale 1 slope. 1 slope. 1 slope. 1 slope. I slope.
1 1 1 1 I
71*: I I 1 1 1
Villa Grove ;Severe: ;Severe: ;Severe: ;Severe: ;Severe:
; slope. 1 slope. I slope. 1 slope. 1 slope,
i 1 ; I low strength.
1 i 1 1
Zoltay ;Severe: Severe: ;Severe: ;Severe: ;Severe:
I slope. slope, 1 slope, I slope, 1 slope,
1 shrink -swell. 1 shrink -swell. I shrink -swell. I low strength,
1 1 , 1 shrink -swell.
11 1
72 ;Severe: Severe: ;Severe: ;Severe: ;Severe:
Wann 1 wetness. I floods. 1 floods, I floods. ; floods,
1 1 1 wetness. 1 1 frost action.
1 1 1
* See description of the map unit for composition and behavior characteristics of the map unit.
108 SOIL SURVEI'
TABLE 8. --SANITARY FACILITIES
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," "good," "fair," and other terms. Absence of an entry indicates that the soil was
not rated]
Soil name and
map symbol
Septic tank ; Sewage lagoon
absorption ; areas
fields
Trench
sanitary
landfill
Area
sanitary
landfill
Daily cover
for landfill
;
1
1 ;Severe: ;Severe:
Almy Variant I slope, I slope.
I percs slowly. I
;
2*: ; '
Arle ;Severe: ;Severe:
I slope, I slope,
I depth to rock. I large stones.
I
I I
; ;
Ansari :Severe: ;Severe:
; slope, I slope,
I depth to rock. I depth to rock.
t t
. t
t i
Rock outcrop. ;
3 (Severe:
Arvada I percs slowly.
;
4 ;Severe: 'Severe:
Arvada ,'i percs slowly. I slope.
t t
i t
5 'Slight ;Severe:
Ascalon ; ; seepage.
;
6 ;Moderate: ;Severe:
Ascalon I slope. I slope,
: I seepage.
; ;
7*: ; :
Ascalon :Moderate:
i
:Severe: ;Severe:
I slope. ; slope.
t i
t i
i
:Severe: :Severe:
; slope, I slope.
I depth to rock. ;
t
t i
.
:Severe: ;Severe:
I slope, ; slope.
I depth to rock. .
i t
. t
; ;
Moderate: ;Moderate: ;Slight
slope. I too clayey. ;
1
;Moderate: :Moderate:
I too clayey. I slope.
t '
t i
: ;
:Severe: ;Severe:
I seepage. ; seepage.
; :
;Severe: ;Severe:
I seepage. I seepage.
; t
'
I ;
:Severe: ;Severe:
I seepage. ; seepage.
; ;
;Severe: ;Severe:
I large stones I slope.
;
t
'
Severe: ;Slight
; seepage. ;
; ;
;Severe: ;Severe:
I seepage, I seepage.
; large stones. .
t .
Severe: {Severe: ;Severe:
seepage. ; seepage. ; seepage.
Severe: ;Severe: ;Severe:
slope, I seepage. : seepage.
seepage. . ;
i t
;
Severe: ;Severe: (Severe:
depth to rock, I depth to rock, I slope.
slope. ; slope. .
t
Pena
8*:
Atencio
Azeltine
9*.
Badland
10
Begay
11
Begay
12*:
Bucklon
I slope.
Severe:
slope,
large stones.
,Slight
;Severe:
I large stones.
Moderate:
large stones.
'Severe:
I slope,
I seepage.
;Severe:
I slope,
I large stones.
;Severe:
I seepage.
;Severe:
I seepage,
I large stones.
Moderate:
slope,
large stones. :
Severe:
depth to rock,
slope,
percs slowly.
See footnote at end of table.
:Poor:
slope.
(Poor:
; slope,
; large stones,
; area reclaim.
(Poor:
; slope,
; thin layer,
; area reclaim.
;Fair:
I too clayey.
(Fair:
I slope,
too clayey.
;Good.
;Fair:
I slope.
;Fair:
I slope.
;Poor:
; slope,
I large stones.
;Severe:
I large stones.
:Poor:
I seepage,
large stones.
Fair:
large stones.
(Fair:
; slope,
I large stones.
'Poor:
I thin layer,
I slope,
I area reclaim.
• •
RIFLE AREA, COLORADO 111
TABLE 8. --SANITARY FACILITIES --Continued
Soil name and
map symbol
Septic tank I Sewage lagoon
absorption ; areas
fields
Trench
sanitary
landfill
Area
sanitary
landfill
Daily cover
for landfill
39
Jerry
40
Kim
41
Kim
142
Lamphier
143
Limon
1414
Morval
45*:
Morval
Tridell
46
Nihill
147
Nihill
;Severe:
; percs slowly,
I slope.
;Moderate:
I peres slowly.
;Moderate:
; slope,
; peres slowly.
;Severe:
; slope.
;Severe:
I percs slowly,
slope.
Moderate:
; peres slowly,
; slope.
;
;Moderate:
; peres slowly,
I slope.
(Severe:
; slope,
I large stones.
;Slight
;Severe:
; slope.
48 Severe:
Northwater ; slope,
I depth to rock.
49, 50 ;Moderate:
Olney ; percs slowly.
51 (Moderate:
Olney I percs slowly,
; slope.
1
52 ;Severe:
Parachute 1 slope,
; depth to rock.
53*:
Parachute ;Severe:
slope,
; depth to rock.
Rhone ;Severe:
; depth to rock.
See footnote at end of table.
;Severe:
; slope.
;Moderate:
I slope,
; seepage.
;Severe:
slope.
;Severe:
; slope.
;Moderate:
; slope.
;Severe:
; slope.
;Severe:
I slope.
;Severe:
I seepage,
I slope,
1 large stones.
;Severe:
seepage.
;Severe:
slope,
seepage.
Severe:
slope.
Moderate:
seepage,
slope.
;Severe:
' slope.
Slight
Slight
Severe:
slope.
Severe:
too clayey.
;Moderate:
I too clayey.
;Moderate:
I too clayey.
;Severe:
; seepage,
; large stones.
;Severe:
; seepage.
;Severe:
; seepage.
;Severe:
; slope,
; depth to rock.
;Slight
Severe:
slope.
Slight
;Moderate:
I slope.
;Severe:
; slope.
;Slight
;Slight
;Moderate:
I slope.
:Severe:
1 slope,
1 seepage.
Severe:
seepage.
Severe:
slope,
seepage.
Severe:
slope.
Slight
Severe: ;Slight Moderate:
slope. .
; slope.
I
:Severe: Severe:
slope, slope,
rock, I depth to rock, seepage.
:Severe:
slope,
; depth to
1 seepage.
;Severe:
; slope,
; depth to
seepage.
;Severe:
1 slope.
;
seepage.
;Severe: Severe:
; depth to rock, ; slope,
rock, 1 seepage. ; seepage.
I 1
;Severe: ;Moderate:
I depth to rock. slope.
;Poor:
; slope.
(Good.
;Fair:
; slope.
:Poor:
; slope.
:Poor:
1 too clayey.
;Fair:
I too clayey.
:Fair:
; slope,
I too clayey.
:Poor:
; slope,
large stones.
Poor:
small stones.
Poor:
slope,
small stones.
Poor:
slope.
;Fair:
small stones.
;Fair:
1 small stones,
; slope.
;Poor:
slope,
small stones,
I area reclaim.
:Poor:
; slope,
small stones,
area reclaim.
Fair:
small stones,
thin layer,
slope.
112 SOIL SURVEY
TABLE 8. --SANITARY FACILITIES --Continued
Soil name and
map symbol
Septic tank I Sewage lagoon I Trench
absorption 1 areas 1 sanitary
fields : ; landfill
Area
sanitary
landfill
Daily cover
for landfill
514, 55
Potts
56
Potts
57*:
Potts
1Moderate:
1 percs slowly.
;Moderate:
I slope,
I seepage.
Moderate: ;Severe:
slope, I slope.
percs slowly.
Moderate: ;Severe:
peres slowly. 1 slope.
;Severe:
slope,
seepage.
Ildefonso Severe:
slope,
I large stones.
58*:
Potts ISevere:
I slope.
Ildefonso ;Severe:
I slope,
I large stones.
59*:
Potts !Severe:
I slope.
Ildefonso 1;Severe:
slope,
large stones.
60
Rhone
61
Rhone
62*:
Rock outcrop.
Torriorthents.
63
Silas
611
Tanna
65*.
Torrifluvents
66*:
Torriorthents.
Camborthids.
Rock outcrop.
67*:
Torriorthents.
Rock outcrop.
;Severe:
I depth to
I slope.
;Severe:
I depth to
I slope.
Severe:
slope.
Severe:
I slope,
I seepage.
1
;Severe:
I slope.
!Severe:
1 slope,
I seepage.
;Severe:
rock, I slope.
1
;Severe:
rock, I slope.
;Severe:
1 floods.
!Severe:
depth to rock,
I slope.
!Severe:
: floods.
;Severe:
I depth to rock,
I percs slowly,
I slope.
1
See footnote at end of table.
;Slight
;Slight
1
;Slight
!Severe:
I large stones.
;Moderate:
I slope.
:Severe:
I large stones,
I seepage.
!Severe:
slope.
;Severe:
I slope,
large stones,
I seepage.
;Severe:
I depth to rock.
!Severe:
I slope,
I depth to rock.
r
ISevere:
floods.
Severe:
depth to rock,
slope.
Slight
Moderate:
slope.
Slight
Moderate:
slope.
Severe:
slope.
Severe:
slope,
seepage.
;Severe:
I slope.
:Severe:
I slope,
seepage.
!Severe:
I slope.
Severe:
slope.
Severe:
! floods.
!Severe:
! slope.
;Good.
:Fair:
I slope.
;Good.
Poor:
large stones.
;Poor:
slope.
;Poor:
slope,
I large stones.
1Poor:
1 slope.
!Poor:
slope,
I large stones.
1Poor:
I slope.
;Poor:
I slope.
!Good.
•1Poor:
I slope,
thin layer,
I area reclaim.
I
RIFLE AREA, COLORADO
TABLE 8. --SANITARY FACILITIES --Continued
113
Soil name and
map symbol
Septic tank
absorption
fields
Sewage lagoon
areas
68
Vale
Moderate: :Moderate:
percs slowly. I seepage,
I slope.
;Severe:
slope.
Severe: ;Severe:
slope. I slope.
Severe: ;Severe:
slope. I slope,
I seepage.
Severe: ;Severe:
slope, I slope.
peres slowly.
Severe: ;Severe:
wetness, I seepage,
floods. I wetness,
floods.
69 ;Moderate:
Vale I slope,
percs slowly.
70
Vale
71*:
Villa Grove
Zoltay
72
Wann
I
I Trench I Area ; Daily cover
I sanitary ; sanitary I for landfill
landfill I landfill ;
1 I I
I
I I
;Moderate: ;Slight ;Fair:
too clayey. ; ' too clayey.
;Moderate: ;Moderate: ,Fair:
too clayey. ; slope. I slope,
. ; ; too clayey.
1 i i
;Moderate: ;Severe: ;Poor:
slope, ; slope. ; slope.
too clayey. ; I
1 I I
;Severe: ;Severe: (Poor:
I seepage. I slope, I slope.
1I seepage. I
;Severe: (Severe: IPsl000r:
I too clayey. I slope. pe,
I too clayey.
i ;
;Severe: (Severe: (Good.
I floods, I floods, I
I wetness, ; wetness, I
I seepage..I seepage.
* See description of the map unit for composition and behavior characteristics of the map unit.
114
SOIL SURVEY
TABLE 9. --CONSTRUCTION MATERIALS
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"good," "fair," and "poor." Absence of an entry indicates that the soil was not rated]
Soil name and
map symbol
Roadfill
; 1
1 Sand ; Gravel : Topsoil
i
1 :
1 1
1 1 ,
' ;
i
:Unsuited 'Unsuited :Poor:
1 I slope.
I
I
Unsuited: ;Poor:
thin layer, I slope,
' large stones.
;
;Unsuited :Poor:
1 1 I slope,
1 1 1 large stones,
1 1 1 area reclaim.
I 1
' 1
1 1 1
;Unsuited: ;Unsuited: :Poor:
' excess fines. I excess fines. I too clayey,
1 1 : excess sodium.
;Poor: ;Unsuited :Fair:
1 excess fines. ; I too clayey.
1 ; :
:Poor: Unsuited ;Fair:
; excess fines. I slope,
; too clayey.
1
Almy Variant
2*:
Arle
Ansari
Rock outcrop.
3, 4
Arvada
5
Ascalon
6 ---
Ascalon
7*:
Ascalon
Pena
8*:
Atencio
Azeltine
9*.
Badland
10
Begay
11
Poor:
slope,
low strength.
Poor: 'Unsuited:
slope, I thin layer.
thin layer,
area reclaim. ;
Poor: ;Unsuited
slope,
thin layer,
area reclaim.
:Poor:
shrink—swell,
low strength.
Begay
12*:
Bucklon
Poor:
low strength.
Poor:
low strength.
Poor:
low strength.
Poor:
excess fines.
Unsuited
Poor: ;Unsuited ;Unsuited
large stones. ; ;
;Poor: ;Poor:
1 : large stones. 1 large stones.
: :
:Fair: :Poor: :Poor:.
; large stones. I large stones. : large stones.
: ;
i
: 1
1 1 '
: ;
;Fair: ;Poor: :Unsuited
; large stones. I excess fines, :
: ; large stones. ;
:Fair: ;Poor: :Unsuited
large stones. 1 excess fines.
;Good
Poor: :Unsuited :Unsuited
1 thin layer, : :
: slope, I ,
I area reclaim. ; :
See footnote at end of table.
Fair:
slope,
too clayey.
;Poor:
I slope,
' large stones.
;Fair:
1 small stones.
Poor:
small stones.
:Good.
Fair:
slope.
Poor:
slope,
area reclaim,
thin layer.
• •
RIFLE AREA, COLORADO 117
TABLE 9. --CONSTRUCTION MATERIALS --Continued
Soil name and
map symbol
Roadfill ; Sand
Gravel
Topsoil
i
{
39 Poor: ;Unsuited :Unsuited
Jerry I shrink -swell, , ,
I slope, I ;
1 low strength. ; 1
1 ,
40 ;Fair: :Unsuited ;Unsuited
Kim I low strength. ; .
41 (Fair: ;Unsuited ;Unsuited
Kim 1 low strength.
;
42 ;Poor: Unsuited Unsuited
Lamphier 1 slope.
43 ;Poor: Unsuited ;Unsuited
Limon 1 low strength, ; ;
1 shrink -swell. ; I
; 1
44 !Fair: ;Unsuited ;Unsuited
Morval I low strength, ! 1
1 shrink -swell, ! 1
1 frost action. 1 1
1 1 I.
45*: I ; 1
Morval ;Fair: ;Unsuited ;Unsuited
I low strength, I 1
1 shrink -swell, 1 1
I frost action. 1 1
; I 1
Tridell ;Poor: ;Unsuited :Unsuited
1 large stones. ! !
I ; I
; 1 1
46 ;Good ;Unsuited ;Unsuited
Nihill 1 1 1
; ; I
I 1 I
47 (Fair: ;Unsuited ;Unsuited
Nihill 1 slope. 1 1
; ; ;
; ; ;
I 1 1
48 ;Poor: :Unsuited ;Unsuited
Northwater I slope. 1 1
; ; ;
49, 50 ;Fair: ;Unsuited ;Unsuited
Olney I low strength. 1 1
; ; ;
51 (Fair: ;Unsuited ;Unsuited
Olney 1 low strength. 1 1
1 1 1
; I 1
52 ;Poor: ;Unsuited !Unsuited
Parachute 1 slope, 1 1
1 thin layer, 1
; area reclaim. ; :
; ; ;
53*: ! ; !
Parachute ;Poor: ;Unsuited !Unsuited
I thin layer, 1 1
1 area reclaim. 1 {
; 1
Rhone ;Fair: ;Unsuited ;Unsuited
I thin layer, 1 1
1 low strength. 1 {
; I
,Poor:
1 slope,
too clayey,
1 large stones.
;Good.
;Fair:
1 slope.
!Poor:
1 slope.
4
1Poor:
1 too clayey.
;Good.
;
;Fair:
I slope.
;Poor:
1 slope,
1 large stones.
;Poor:
,. small stones,
area reclaim.
;Poor:
1 slope,
1 small stones,
I area reclaim.
;Poor:
I slope.
;Fair:
I small stones.
(Fair:
1 small stones,
I slope.
See footnote at end of table.
Poor:
slope,
area reclaim.
Poor:
slope,
area reclaim.
(Fair:
1 slope,
1 small stones.
118
•
TABLE 9. --CONSTRUCTION MATERIALS --Continued
Soil name and
map symbol
Roadfill
SOIL SURVEY
Sand Gravel Topsoil
54, 55 ;Fair:
Potts ! low strength.
56 :Fair:
Potts ; low strength.
57*:
Potts 'Fair:
low strength.
Ildefonso ,Poor:
large stones.
58*: ;
Potts ;Fair:
slope,
; low strength.
Ildefonso :Poor:
! large stones.
1
59*:
Potts
Ildefonso
60
Rhone
61
Rhone
62*:
Rock outcrop.
Torriorthents.
:Poor:
slope.
Poor:
slope,
: large stones.
;Fair:
1 slope,
; thin layer,
! low strength.
;Poor:
{ slope.
63 :Fair:
Silas ! low strength.
64
Tanna
65*.
Torrifluvents
66*:
Torriorthents.
Camborthids.
Rock outcrop.
67':
Torriorthents.
Rock outcrop.
Poor:
slope,
low strength,
thin layer.
See footnote at end of table.
Unsuited ;Unsuited
;
Unsuited ;Unsuited
;Unsuited !Unsuited
;Unsuited Unsuited
; !
:Unsuited ;Unsuited
;Unsuited ;Unsuited
1
;Unsuited ;Unsuited
: !
;Unsuited !Unsuited
Unsuited !Unsuited
:Unsuited ;Unsuited
;Unsuited Unsuited
Unsuited
Fair:
small stones.
Fair:
slope,
small stones.
Fair:
small stones.
Poor:
large stones.
Poor:
slope.
Poor:
slope,
large stones.
Poor:
slope.
Poor:
slope,
large stones.
Poor:
slope.
Poor:
slope.
Good.
:Unsuited ;Poor:
slope,
too clayey.
t �
FLE AREA, COLORADO 119
TABLE 9. --CONSTRUCTION MATERIALS --Continued
Soil name and
map symbol
Roadfill
Sand
Gravel Topsoil
;Poor:
ale ; low strength.
;Poor:
ale ; low strength.
;Fair:
'ale ; low strength,
1 slope.
ills Grove
Poor:
low strength.
:oltay Poor:
; low strength,
; shrink -swell.
! ;Fair:
!arm ; low strength,
; wetness.
;
Unsuited
Unsuited
Unsuited
;Unsuited
;Unsuited
;Unsuited
;Unsuited
;
;Unsuited
Unsuited ;Unsuited
;
Unsuited ;Unsuited
Good.
;Fair:
; slope.
;Poor:
; slope.
;
;Poor:
; slope.
;Poor:
1 slope,
1 small stones.
;Good.
* See description of the map unit for composition and behavior characteristics of the map unit.
120
[Some terms that describe restrictive
that the soil was not evaluated]
TABLE 10. --WATER MANAGEMENT
soil features are defined in the Glossary.
SOIL SURVEY
Absence of an entry indicates
Soil name and
map symbol
Pond
reservoir
areas
Embankments,
dikes, and
levees
Drainage
Irrigation
I Terraces and
I diversions
Grassed
waterways
1
Almy
2*:
Arle
3
4
Variant
Ansari
5
Rock outcrop.
6
Arvada
Arvada
Ascalon
Ascalon
7*:
Ascalon
Pena
(Slope
8*:
Atencio
Scope,
seepage,
depth to rock.
Slope,
I depth to rock.;
;Favorable
;Slope
;Seepage,
; slope.
Seepage,
I slope.
;Seepage,
I slope.
(Favorable
I 1 I
I I I
(Slope ;Slope ;Slope
; ;
; ; I
; ; 1
;Slope, ;Large stones,
I depth to rock,; slope, I
; large stones. I droughty. ;
; .
;Slope, ;Droughty, I
depth to rock.; slope, I
; ; rooting depth.
;Piping,
I thin layer,
I large stones.
IThin layer
Azeltine
9*.
Badland
10
Begay
11
Begay
12*:
Bucklon
Inchau
13
1 I I
1 I I
I I
;Excess sodium --;Peres slowly, ;Slope, ;Peres slowly---
; ; excess sodium,: percs slowly,
I slope. ; excess sodium.
; I ;
;Excess sodium --(Peres slowly, ;Slope,
excess sodium, percs slowly,
slope. excess sodium.
(Slope.
Large stones, (Large stones,
slope, ; slope,
depth to rock.; droughty.
Slope, ;Slope,
depth to rock.; rooting dept)
droughty.
;Favorable
;Favorable
;Favorable
;Slope, ;Large stones---
; large stones. ;
Chilton
;Seepage,
I slope.
;Slope,
I seepage.
I
;Slope,
I seepage.
;Slope,
I seepage.
;Depth to rock, ;Thin layer
I slope.
:Slope, ;Thin layer
I depth to rock,
; seepage.
:Seepage, Seepage
;Seepage,
I large stones.
;Seepage,
I large stones.
;Piping,
seepage.
Piping,
seepage.
I slope.
Slope
1
Slope
Slope
Slope
;Slope
;Slope
Slope, ;Slope,
I large stones. I large stones,
I droughty.
;Slope, ;Slope,
cutbanks cave,( droughty,
large stones. ; soil blowing.
Slope,
large stones.
Slope
Scope,
seepage,
droughty.
;Slope,
;Slope ;Slope
; I
;Depth to rock,
I slope.
;Slope,
I depth to rock.
Slope
Peres slowly,
excess sodiu
Slope, ;Slope,
percs slowly. ; percs slowly
excess sodiu
Slope
;Slope
;Rooting depth,
I slope.
Slope
;Slope.
;Slope.
Slope,
I large stones.
;Large stones,
I soil blowing.
;Large stones,
1 soil blowing.
;Favorable
;Slope
;Slope,
; depth
Slope, ;Slope,
rooting depth. depth
;Droughty,
I slope.
Slope.
;Slope,
I large stone:
I droughty.
;Droughty,
I large stone:
Droughty,
large stone.
;Favorable.
;Slope.
;Slope,
to rock.; rooting dep
ISiope,
to rock.; rooting dep
;Droughty.
Favorable
See footnote at end of table.
• •
122 SOIL SURVEY
TABLE 10. --WATER MANAGEMENT --Continued
Soil name and ' Pond : Embankments,
map symbol ' reservoir I dikes, and
' areas : levees
Drainage I Irrigation
Terraces and
diversions
Grassed
waterways
I ;
1 1
33, 34 ;Large stones ---;Slope, !Slope, Large stones,
Ildefonso I I large stones. I large stones, I slope.
' I droughty.
1 ' !
35*: ! ! 1
Ildefonso ;Large stones ---(Slope, !Slope, (Large stones,
' large stones. I large stones, ; slope.
I I droughty.
Lazear Thin layer !Depth to rock, (Rooting depth,
slope. I slope.
Irigul rock. 1Thin layer ;Depth to rock ;Slope, Depth to rock,
I
'Seepage,
I slope.
!Seepage,
! slope.
!Depth to rock,
: slope.
36, 37
Slope,
depth to
Slope,
large stones,
droughty.
Slope,
large stones,
droughty.
Depth to rock, !Slope,
slope. ; rooting depth.
I I rooting depth, slope.
1 ' I droughty.
I
38*: ! I
Irigul (Slope, ;Thin layer !Depth to rock :Slope, Depth to rock,
I depth to rock.; 1 1 rooting depth, slope.
! 1 ! I droughty.
' !
Starman ;Slope, ;Thin layer ;Depth to rock ;Slope, Slope,
depth to rock. ; 1 rooting depth. depth to rock
1 1
39 :Slope ;Hard to pack---ISlope, ;Slope, ;Slope,
Jerry 1 ' ' peres slowly. I percs slowly. ; percs slowly.
1 '
I ;
40 'Slope, 'Piping ;Slope 'Slope Favorable
Kim I seepage. 1 1
I
: ;
41 ;Slope, ;Piping ;Slope ;Slope Slope
;
Kim ' seepage. 1 1
I
1 : ;
1
42 ;Slope, ;Piping {Slope ;Slope ;Slope
Lamphier ; seepage. ; I
1
: 1
'
43 :Slope :Hard to pack ---;Peres slowly, ;Peres slowly, ;Peres slowly---
Limon ! 1 I slope. ; slope. 1
1 1 1 :
44 ;Slope, ;Favorable 'Slope ;Erodes easily, Erodes;easily
Morval 1 seepage. ! : I slope.
1 1 '
45*: ! : 1
Morval 'Slope, ;Favorable ISlo e
P (Erodes easily, 'Erodes easily
1 seepage. I
1 I slope. I
1
I I I I 1
Tridell 'Slope, 'Large stones, ;Slope, 'Slope, ;Slope,
I seepage. I seepage. I large stones. I droughty, I large
! :
1 ; large stones. 1
1 ( ; 1
46 'Seepage ;Seepage ;Slope
;
Nihil! p 'Slope, Favorable
1 1 I droughty. 1
1 : I
47 ;See, !
;Seepage, Seepage ;Slope a e p ;Slope, ;Slope
I slope. ;
! 1 ; droughty.
48 ;Slope, 'Thin layer :Slope !
P ;Slope ;Slope
Northwater I seepage. 1
' 1
49 :Seepage ;Favorable ;Favorable ;Favorable
Olney : ;
1
1
11 1
50, 51 ;Slope, ;Favorable ISlo 1
e (Slope
Olney I seepage. 1 p
1 1
I I
52 ;Depth to rock, ;Thin layer :Depth to rock, ;Slope, :Depth to rock,
Parachute I slope, ; 1 slope. I droughty, ; slope.
I seepage. 1 1 1 rooting depth.;
I ! I 1
Slope,
rooting depth,
droughty.
Slope,
rooting depth,
droughty.
Slope,
rooting depth.
Slope,
percs slowly.
Favorable.
Slope.
Slope.
Peres slowly.
Erodes easily.
'Erodes easily.
:Slope,
stones. I droughty,
' large stones.
:Droughty.
;Slope,
I droughty.
'Slope.
Favorable ;Favorable.
;
Slope ;Slope.
Slope,
rooting depth,
droughty.
See footnote at end of table.
RIFLE AREA, COLORADO 123
TABLE 10. --WATER MANAGEMENT --Continued
Soil name and
map symbol
Pond
reservoir
areas
; Embankments,
I dikes, and
levees
Drainage
lrrigation
Terraces and
diversions
Grassed
waterways
53*:
Parachute
Rhone
54, 55
Potts
56
Potts
57*:
Potts
Ildefonso
58*, 59*:
Potts
Ildefonso
60, 61
Rhone
62*:
Rock outcrop.
Torriorthents.
63
Silas
64
Tanna
65*.
Torrifluvents
66*:
Torriorthents.
Camborthids.
Rock outcrop.
67*:
Torriorthents.
Rock outcrop.
68
7
Depth to rock, ;Thin layer
slope,
seepage.
;
Slope, ;Thin layer
depth to rock.;
Seepage ;Piping
Seepage (Piping
Seepage Piping
Seepage,
slope.
Seepage
Vale
69
Seepage,
slope.
Vale
70
Slope,
depth
Vale
Large stones ---
;Piping
Large stones ---
;Thin
to rock.;
Slope,
seepage.
Slope,
depth to
Seepage
Depth to rock,
slope.
Slope,
depth to rock.
Slope
Slope
,Slope,
; droughty,
I rooting depth.
(Slope,
I rooting depth.
ISlope,
I erodes easily.
ISlope,
I erodes easily.
Slope ;Slope,
I erodes easily.
Slope, ;Slope,
large stones. ; large stones,
Slope
Slope,
large stones.
I droughty.
1
Depth to rock,
slope.
Slope,
rooting depth,
droughty.
Slope, ;Slope,
I depth to rock.; rooting depth.
1 1
;Erodes easily --;Erodes easily.
, 1
1 1
1I
;Slope, ;Slope,
I erodes easily.; erodes easily.
, 1
1 1
;Erodes easily --;Erodes easily.
Large stones, ;Slope,
slope. I large stones,
I droughty.
;Slope, ;Slope, ;Slope,
I erodes easily.; erodes easily.; erodes easily.
1
1
;Slope, ;Large stones, ;Slope,
I large stones, I slope. I large stones,
I droughty. ; ; droughty.
'Slope,
rooting depth.
layer ISlope, ;Slope, ;Slope,
I depth to rock.; rooting depth.; depth to rock.
;Piping
;Thin layer
rock.)
Slope,
seepage.
Slope,
seepage.
Piping
!Piping
;Piping
I
ISlope,
I floods.
;Slope,
percs slowly,
I depth to rock.
I 1
I
;Slope, (Favorable.
I floods.
1
ISlope, ;Slope, ;Slope,
I percs slowly, I depth to rock,; erodes easily,
I rooting depth.; percs slowly. rooting depth.
1
;Favorable
;
' I
, 1
1 1
1
i
1
1
,
,
1
1
;
1
1
1
,
1
Favorable 'Favorable ;Erodes easily
,
11 1
1 ' I
ISlope ISlope ;Erodes easily,
I I I slope.
; 1
ISlope ISlope ;Slope, ;Slope,
I erodes easily.; erodes
; ; I I
;
;Erodes easily.
ISlope,
1 erodes easily.
easily.
See footnote at end of table.
124
e •
TABLE 10. --WATER MANAGEMENT --Continued
SOIL SURVEY
Soil name and
map symbol
Pond I Embankments,
reservoir I dikes, and
areas 1 levees
I i
Drainage I Irrigation I Terraces and
1 I diversions
1
Grassed
waterways
1 i
71*: i i
Villa Grove ;Slope, :Favorable
I seepage. 1
Zoltay :Slope (Favorable
; ;
1 I
72 Seepage :Seepage
Wann ;
i ;
i ;
1
Slope, :Slope, ;Favorable :Excess salt.
excess salt. 1 excess salt. ; 1
Peres slowly, :Slope, :Slope, ;Slope,
slope. I Peres slowly. I peres slowly. I peres slowly.
; ; ;
Floods, ;Floods Favorable ;Favorable.
frost action. I 1 1
1
* See description of the map unit for composition and behavior characteristics of the map unit.
RIFLE AREA, COLORADO
• •
125
TABLE 11. --RECREATIONAL DEVELOPMENT
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," and "severe." Absence of an entry indicates that the soil was not rated]
Soil name and
map symbol
Camp areas
Picnic areas
Playgrounds 1 Paths and trails
1
1 ;Severe:
Almy Variant I slope.
2*:
Arle ;Severe:
1 slope,
1 large stones.
;
1
Ansari Severe:
slope,
depth to rock.
3
4
5
Rock outcrop.
Arvada
Arvada
;Moderate:
1 percs slowly.
;Moderate:
I peres slowly.
;Slight
Ascalon
6 ;Moderate:
Ascalon 1 slope.
7*:
Ascalon ;Moderate:
1 slope.
1
Pena 'Severe:
slope,
large stones.
8*:
Atencio
;Slight
;
Azeltine ;Moderate:
1 small stones.
1
9*. 1
Badland
1
10 Slight
Begay
11 ;Moderate:
Begay 1 slope.
12*: ;
Bucklon ;Severe:
1 slope,
1 depth to rock.
Inchau ;Severe:
I slope.
1
See footnote at end of table.
T ;
;Severe: ;Severe: ;Severe:
1 slope. 1 slope. 1 slope.
1 1 ;
;Severe: ;Severe: ;Severe:
I slope, 1 slope, 1 slope,
1 large stones. 1 large stones, 1 large stones.
1
1 1 small stones. 1
' 1 1
;Severe: ;Severe: ;Severe:
1 slope. 1 slope, I slope.
1 1 depth to rock, 1
1 1 large stones. 1
1 1 1
; ;
1 1
;Slight ;Moderate: ;Slight.
1 1 percs slowly. ;
•
;Moderate: ;Severe: ;Slight.
1 slope. 1 slope. 1
; I
;Slight ;Moderate: ;Slight.
1 1 slope. 1
1 I ;
;Moderate: ;Severe: ;Slight.
1 slope. 1 slope. 1
;
1 I '
;Moderate: ;Severe: ;Slight.
1 slope. 1 slope. 1
;Severe: ;Severe: Moderate:
I slope. 1 slope, I slope.
' 1 large stones. ;
I I
I I
;Slight ;Moderate: ;Slight.
1 1 slope, 1
1 1 small stones. 1
1 I 1
Moderate: ;Severe: ;Moderate:
1 small stones. 1 slope, 1 small stones.
1 small stones. 1
1 1 1 1
I 1 ;
;Slight ;Moderate: ;Slight.
1 I slope. 1
;Moderate: ;Severe: ;Slight.
1 slope. 1 slope. 1
1
1 1 1
;Severe: ;Severe: ;Severe:
I slope, 1 depth to rock, 1 slope.
1 depth to rock. 1 slope. 1
I 1 I
;Severe: ;Severe: ;Severe:
1 slope. 1 slope. I slope.
I 1 I
• •
128 SOIL SURVEY
TABLE 11. --RECREATIONAL DEVELOPMENT --Continued
Soil name and
map symbol
Camp areas
Picnic areas
1
Playgrounds I Paths and trails
1414
Morval
45*:
Morval-
Tridell
46
Nihill
47
Nihill
148
Northwater
49, 50
Olney
51
Olney
52
Parachute
Slight
;Slight
Moderate: Moderate:
slope. I slope.
Severe: :Severe: ;Severe:
slope. I slope. I slope,
I I large stones.
;
Moderate: :Moderate: ;Severe:
small stones. I small stones. I small stones.
' ;
Severe: :Severe: :Severe:
slope. I slope. I slope,
; I small stones.
'
Severe: :Severe: :Severe:
slope. slope. I slope.
Moderate: Moderate: 'Moderate:
dusty. dusty. slope,
dusty.
:Severe:
I slope.
1
;Slight.
1
Severe: :Slight.
slope.
:Moderate:
large stones.
Moderate:
slope,
dusty.
Severe:
slope.
53*:
Parachute Severe:
: slope.
Rhone ;Moderate:
I slope.
54, 55 :Slight
Potts 1
;
56 :Moderate:
Potts : slope.
57*: 1
Potts :Slight
Ildefonso :Severe:
: large stones.
58*:
Potts 'Severe:
slope.
Ildefonso :Severe:
I slope,
1 large'stones.
59*.
Potts
Ildefonso
Severe:
slope.
Severe:
slope,
large stones.
Moderate: :Severe:
slope, 1 slope.
dusty.
;Severe:
: slope.
:Severe:
: slope.
Severe:
slope.
:Moderate:
slope.
Slight
1Moderate:
slope.
Slight
Severe:
large stones.
Severe:
slope.
Severe:
slope,
large stones.
Severe:
slope.
Severe:
: slope,
large stones.
Severe:
slope.
:Severe:
I slope.
1Moderate:
I slope.
'Severe:
I slope.
Severe:
slope.
Severe:
slope,
large stones.
Moderate:
small stones.
:Moderate:
1 slope,
1 small stones.
Severe:
slope.
:Moderate:
I dusty.
:Moderate:
1 dusty.
:Severe:
: slope.
:Moderate:
' slope.
Slight.
Slight.
:Slight.
Slight.
Severe:
large stones.
Severe: (Moderate:
slope. 1 slope.
Severe: :Severe:
slopa, : large stones.
large stones. 1
Severe: 'Severe:
slope. slope.
Severe:
slope,
large stones.
,Severe:
I slope,
I large stones.
See footnote at end of table.
• •
RIFLE AREA, COLORADO 129
TABLE 11. --RECREATIONAL DEVELOPMENT --Continued
Soil name and ; Camp areas Picnic areas ; Playgrounds 1 Paths and trails
map symbol ; ; ;
1 ; ;
60
Rhone
61
Rhone
62*:
Rock outcrop.
Torriorthents.
63
Silas
614
Tanna
65*.
Torrifluvents
66*:
Torriorthents.
Camborthids.
Rock outcrop.
67*:
Torriorthents.
Rock outcrop.
1 1 j
,
1 1 1
;Severe: Severe: ;Severe:
I slope. ; slope. I slope.
; ; ;
;Severe: Severe: ;Severe:
I slope. slope. I slope.
1 i i
. i
; 1
I I
1 1 1
; ;
;Severe: Slight ;Severe:
; floods. ; I slope.
i i .
;Severe: 'Severe: ;Severe:
I slope. ; slope. I slope.
1 1 1
'4
1 1 1
I i
Moderate:
slope.
Severe:
slope.
Slight.
Severe:
slope.
I
1 i
1 1
I ;
I II
' f 1
1 1 I
1 1 I
68 ;Moderate: Moderate: ;Moderate: ;Moderate:
Vale I dusty. dusty. I slope, I dusty.
; I dusty. .
69 ;Moderate: Moderate: ;Severe: ;Moderate:
Vale I slope, slope, I slope. I dusty.
dusty. dusty. ; ;
70 Severe: Severe: ;Severe: ;Moderate:
Vale I slope. slope. I slope. I slope,
I I dusty.
; I
71*: i i i
Villa Grove ;Severe: ;Severe: ,Severe: ;Moderate:
I slope. I slope. I slope. I slope.
I ; ; ;
Zoltay ;Severe: ;Severe: ;Severe: ;Moderate:
I slope. I slope. I slope. I slope.
1 1 . 1
72 ;Severe: ;Moderate: ;Moderate: ;Slight.
Wann ; floods. ; wetness. I floods, ;
1 I ; wetness. I
;
* See description of the map unit for composition and behavior characteristics of the map unit.
• •
130 SOIL SURVEY
TABLE 12. --WILDLIFE HABITAT POTENTIALS
[See text for definitions of "good," "fair," "poor," and "very poor." Absence of an entry indicates that the
soil was not rated]
Potential for habitat elements
Potential as habitat for --
Soil name and :Grain I !Wild 1 : ;
map symbol I and :Grasseslherba-;Hard- ;Conif-IShrubslWetland;Shallow
!seed 1 and 1 ceous: wood 1 erous: :plants ! water
!crops !legumes plantsltrees plants: : ! areas
I I
1 1 1 1 1 I I
I I I
1 :Very :Very !Fair : --- 1
Almy Variant I poor.; poor. I l
; : I ! ;
2*: ; ! : : :
Arle !Very !Very :Fair ! I
I poor.! poor. I !
1
I 1 1 1 1
Ansari !Very !Very :Poor 1 1
I poor.: poor. 1 1 :
I I I I
Rock outcrop. ; ! : !
1 1 1 : 1
3, 4 !Very :Very ;Poor I I
Arvada 1 poor.: poor. :
1
1 1
5 !Good ;Good Fiir ! I
Ascalon ! ! ! !
I
I
I
1
! :
1
1 1
I
6 !Fair !Good
Ascalon ! 1
1I
I 1
7*: : 1
Ascalon ;Poor' ;Fair
; 1
; !
Pena ;Very ;Very
I poor.; poor.
8*: ! 1
Atencio Fair ;Good
1
Azeltine Poor !Fair
Fair
;Fair
1
!Fair
Good
I 1
;Fair
! :
; !
9*• ; !
Badland : : :
; 1
10, 11 !Fair ;Fair !Fair I
Begay : ; : :
1 : 1 :
12*: I I : !
Bucklon ;Poor !Poor :Fair :
1 11
I I 1
Inchau ;Very :Very ;Fair I
I poor.: poor. I :
1
I
13, 14, 15 :Poor :Fair ;Fair I
Chilton : : ! ;
1 1I 1
1 1 1
16 ;Poor ;Poor ;Fair :
Cimarron : ; : :
:
17 ;Poor ;Poor ;Good 1
Cochetopa : 1 ;
1 1 1
18*, 19*: I : 1
Cochetopa ;Poor Poor Good
:
: : :
Jerry ;Very ;Very ;Fair 1 ---
; poor.;_poor - I -----;--- -
I 1 1
1 1 1 i
See footnote at end of table.
II 1
I 1 I
--- !Fair ;Very ;Very
; I poor. I poor.
I
1 1 1
II 1
1 I I
;Fair :Very :Very
; : poor. I poor.
I 1 ;
;Poor ;Very ;Very
; I poor. I poor.
: I I
1 : 1
1
I
:Very !Poor !Very
I poor.: ; poor.
! ! I
!Fair !Poor ;Very
! 1 I poor.
I ;
;Fair !Poor (Very
I I I poor.
I 1
1 1
I 1 I
1
(Fair ;Poor ;Very
I 1 I poor.
I
!Fair :Very :Very
: : poor. I poor.
1 I ;
; :
(Poor ;Very
: 1 poor.
;
:Very (Very
1 poor. 1 poor.
I 1
I I
I
: 1
1 I
;Very ;Very
I poor. I poor.
; 1
!
(Very ;Very
I poor. I poor.
!Fair
!Fair
:Fair
1
(Fair
;Fair
Fair ;Fair
1
I
:Fair
;Fair
1
:Fair
1
:Fair
Open- ; Wood- I
land ! land ;Wetland
wild- ; wild- I wild-
life life life
Range-
land
wild-
life
;Very Very
I poor. poor.
1
!Very ;Very
poor. poor.
:Very Very
I poor. poor.
:Very Very
1 poor. poor.
:Very Very
poor. I poor.
;Very :Very
I poor.; -poor.
I 1
Poor
Poor
Very
poor.
Very
poor.
Good
Fair
Fair
Poor
Fair
Poor
Fair
Poor
Poor
Fair
Poor
Fair
Fair
Poor
Very
poor.
Fair.
!Vpoory r.
eFair.
:Very Poor.
: poor.
1
1
1
:Very ;Very
I poor. I poor.
1 1
I 1
:Very ;Fair.
I poor. I
I I
:Very ;Fair.
I poor. ;
1
I _
I
;Very ;Fair.
I poor. 1
I I
;Very Fair.
poor.
1
I
;Very Fair.
: poor. I
I I
1 1
;Very ;Fair.
: poor. I
1
; 1
;Very ;Fair.
I poor. I
1
;Very ;Fair.
I poor. I
1 I
i 1
:Very ;Fair.
I poor. I
I 1
I I
Fair ;Very ;Fair.
: poor. I
I I
I I 1
Very :Fair.
poor. ;
1 I
:Very ;Fair.
: poor. :
I 1 I
I I I
1
;Very :Fair.
I poor. :
I --- ;Very :Good.
poor -.-1
I 1 i
132
TABLE 12. --WILDLIFE HABITAT POTENTIALS --Continued
Soil name and
map symbol
40, 41
Kim
142
Lamphier
43
Limon
I Potential for
;Grain I ;Wild I
I and IGrasseslherba-IHard-
Iseed I and I ceous; wood
(crops ;legumes;plants;trees
t ,
, , 1
1 1 1
;Fair ;Fair ;Fair
;
; 1
Poor ;Poor ;Good
' 1
t ;
Poor ;Poor ;Fair
t ;
' ;
(Good
'
'
I
i
;Good
1
t
;Poor
1
44 ;Fair
Morval ; I
; '
45*: I 1
Morval 'Fair ;flood
; ;
Tridell 'Very 'Very
I poor.' poor.
'
46 ;Fair ;Good 'Fair
Nihill 1 1 1
1 1 1
47 ;Poor ;Fair 'Fair
Nihill t ; 1
; ; t
48 ;Poor 'Poor ;Good
Northwater 1 • 1 1
' 1 I
49, 50, 51 ;Poor (Fair 'Fair
Olney 1 1
t ;
52 Very ;Very ;Good
Parachute ' poor.' poor '
1
tg
53*: I I
Parachute 'Poor Poor 'Good
1 ; '
1 ' 1
Rhone ;Poor 'Poor Good
1 1 1
; I
54, 55, 56 'Poor 'Poor !Fair
Potts 1 1 1
t t
;
57*, 58*: I 1 1
Potts 'Poor !Poor ;Fair
t ' ;
! ; ;
Ildefonso 'Poor ;Poor Fair
1 1
; ! t
59*: 1 1 1
Potts ;Poor ;Poor !Fair
;
! t
Ildefonso 'Very
60
Rhone
61
Rhone
62*:
Rock outcrop.
Torrior hems.
Very
poor.
Poor
;Very
I poor.
;Fair
poor. 1
Poor ;Good
Very
poor.
See footnote at end of table.
Good
SOIL SURVEY
habitat elements ; Potential as habitat for--
1 I ; ; I Open- Wood- I t Range-
IConif-tShrubs1WetlandlShallowl land land ;Wetland; land
I erous' ;plants I water I wild- wild- ' wild- t wild -
;plants; 1 ; areas t life life t life t life
I I ; ! ; 1
' ;
1 ; ;
;Fair (Poor ;Very ;Fair --- ;Very (Fair.
' ; ; poor. ; ' poor. 1
(Fair ;Poor ;Very ;Fair Very ;Fair.
I I I poor. I poor. I
,t i t t
;Fair ;Poor ;Very ;Poor Very ;Fair.
1 I poor. 1 poor.
1 1 ; 1
;Fair ;Poor ;Poor ;Good ;Poor ;Fair.
,
1 1 1
t ,
' ,
t ; ; t
I 1
t t
;Fair ;Poor ;Poor Good ;Poor ;Fair
1 '
;Fair ;Very ;Very Poor ;Very ;Fair
; poor. ' poor. ; poor. I
; ;
;Fair ;Very ;Very Fair ;Very ;Fair.
I ; poor. ; poor. ; I poor. i
; 1 1
1 1
;Fair ;Very ;Very ;Fair ;Very ;Fair.
I I poor. ' poor. I ; poor. ;
I 1 t
1 I
;Fair ;Very ;Very ;Fair ;Very ;Fair.
; ; poor. ; poor. I ; poor. ;
t t
1 I I
'Fair ;Poor Very ;Fair ;Very ;Fair.
poor. t
' ; poor. I
t '
Fair ;Very Very Poor ;Very Fair.
I poor. poor. I poor.
1
,
Fair ;Very Very (Fair ; ;Very ;Fair.
I poor. poor. ; ; ; poor.
' 1 !
,
Fair ;Very ;Very ;Fair ;Very ;Good.
poor. I poor. ; t poor. '
;
' t
Fair ;Very ;Very ;Poor ;Very Fair.
poor. ; poor. ' ' poor.
,
1 g
Fair Very Very ;Poor ;Very ;Fair.
poor. ; poor. I 1 poor. '
1 1 '
Fair Very ;Very ;Poor ;Very ;Fair.
poor. ; poor. ' I poor. ;
g t t
Fair ;Very ;Very ,Poor ;Very ;Fair.
I poor. I poor. ; 1 poor.
i 1 1
Fair Very ;Very ;Poor --- ;Very ;Fair.
poor. t poor. I I poor. '
t ; I I 1
--- ;Fair ;Very Very ;Fair Very ;Good.
I poor. poor. poor.
Fair ;Very Very Poor Very (Good.
1poor. 1 poor. I I poor. ;
' 1
''
1 1 1
1' ' '
1' '
' ' ,
t 1 1
7 i ___ J. __._ ___._ _
t I ' '1 I ;
RIFLE AREA, COLORADO
• •
TABLE 12. --WILDLIFE HABITAT POTENTIALS --Continued
133
Potential for habitat elements Potential as habitat for --
Soil name and Grain :Wild 1 !
map symbol and Grasseslherba-;Hard- 1Conif-;Shrubs
,seed and 1 ceousl wood I erousl
;crops legumeslplantsltrees ;r1plants1
1 i
1
1
63 ;'Poor Poor ;Good ; --- 1 --- ;Good Poor
Silas ; : 1 : ;
1 11
1 1 1 1 1
64 ;Poor ;Fair ;Fair ; --- : --- ;Fair
Tanna ; ; 1 ; ; ;
1 1
1 I 1 1
65*. 1 1 1 ;
Torrifluvents 1 1 1 1
1 1 1 1
1 I 1
I 1 1
66*: ; ; ; ; ; 1
11 1
1 1 1
1 ; ;
Camborthids. ; ; 1 1 ;
; ; ; ;
Rock outcrop. 1 1 ; ; ; 1
1
67*: ; 1 1 ; 1 ;
Torriorthents. ; 1 1 1 ; 1
;
Rock outcrop. 1 1 1 1 ; 1
1
68 Fair ;Good ;Good ;Good ;Very 1 --- ;Very
Vale ; ; ; ; 1 poor.; 1 poor.
1 1 1 1 1
i i 1 1
69, 70 Very ;Very ;Good ;Poor ;Very 1 --- ;Very
Vale ; poor.; poor. 1 1 I poor.; 1 poor.
; 1 ; ; 1
71*: ; ; 1 ; 1 1 1
Villa Grove :Poor Poor;;Good 1 --- 1 --- ;Good ;Poor
11
i 1
1
1
Zoltay ;Poor ;Fair ;Good ; --- 1 --- ;Good ;Very
1 1 poor.
1
1 1
72 !Good ;Good ;Good ; --- ;Fair ;Good ;Poor
Wann ; 1 1 1 ; ; 1
; 1 : ; ; ; 1
T ; Open- 1 Wood -
Wetland Shallow: land I land
plants water : wild- I wild -
areas 1 life life
Very ;Poor
poor. 1 1
Very Very ;Fair ;
poor. poor. 1
;
1
1
1
1
1
1
1
1
;
;
1
1
;
Torriorthents.
1
;
1
Very ;Good ;Very
poor. 1 ; poor.
Very ;Very ;Very
poor. 1 poor. ; poor.
1 I
;
Very ;Fair
poor. ;.
Very ;Fair
poor. 1
1 1
1 I I
;Fair Good 1
1 �
I Range -
;Wetland; land
wild-
life
wild-
; life
1Very
I poor.
1Very
1 poor.
;Very
1 poor.
;Very
1 poor.
1Very
1 poor.
Good.
Fair.
;Good.
;Good.
;Good.
Very ;Good.
poor. ;
i
Fair ;Good.
* See description of the map unit for composition and behavior characteristics of the map unit.
134 SOIL SURVEY
TABLE 13. --ENGINEERING INDEX PROPERTIES
[The symbol < means less than; > means more than. Absence of an entry indicates that data were not estimated]
Soil name and ;Depth; USDA texture
map symbol ' 1
I
Classification ]Frag- ; Percentage passing
sieve number--
;ments I
Unified I AASHTO I > 3 ;
I ;inches;
4 I 10 I 40 1 200
(Liquid Plas-
1 limit ticity
index
1
Almy Variant
2*:
Arle
Ansari
Rock outcrop.
3, 4
Arvada
5, 6
Ascalon
7*:
Ascalon
Pena
8*:
Atencio
In I
0-8 ;Loam CL -ML
8-34;Clay loam CL
34-60IFlaggy clay CL
; loam, flaggy
I loam.
;
0-10IVery stony loam ISM, GM,
; ML
10-32;Very stony loam,;GM, SM
I very stony ;
I sandy loam.
32 ;Weathered
I bedrock.
1 '
0-101Loam ;CL -ML,
; I SM -SC
10-18;Loam, stony loam1CL-ML,
; SM -SC
18 ;Unweathered I ---
; bedrock.
;
;
1
1
0-3 (Loam ICL -ML
3-171Clay, silty c1ayICL, CH
; loam.
17-60;Clay loam, siltylCL
I clay loam.
0-5 ;Fine sandy loam ISM
5-30ISandy clay loam ISC, CL
30-60ISandy loam, ;SC,
I sandy clay 1 SM -SC,
; loam, fine I CL,
' sandy loam. ; CL -ML
0-5 'Fine sandy loam ISM
5-30;Sandy clay loam ISC, CL
30-60ISandy loam, ISC,
1 sandy clay ; SM -SC,
I loam, fine 1 CL,
I sandy loam. I CL -ML
;
0-12;Stony loam ICL -ML
12-60;Very stony loam,IGM
I very stony 1
I sandy loam. '
0-111Sandy loam ISM
11-23;Gravelly sandy ISC
I clay loam, 1
; sandy clay I
; loam. 1
23-28;Gravelly sandy ISM -SC
I clay loam, I
1 gravelly sandy I
; loam. ; ;
28-601Sand, gravel, ISP, GP, IA -1
I and cobbles. I SP -SM,
; ; GP -GM
11
1
1 I Pct 11 T 1
IA -4 0-5 190-100190-100180-95
IA -6 0-5 ;85-100185-100175-95
IA -6 25-35 175-90 175-90 160-80
;
; ; ; ; 1
; ; 1 ;
1 1
;A-4 125-40 160-85 155=80 ;45-70
;
A-1;30-60 140-70 140-70 135-55
; ; ;
; ; ;
;A-2,
1
A-4
1A-4
1A-7
;A-2, A -4I
1A-6 I
IA -4, A-6;
' ;
I I
; ;
; ;
11
' 1
;A-2, A-4;
1A-6 ;
;A-4, A-61
1
1
;
1 ;
;
5-15 175-100175-90 170-80 45-65
15-35 175-95 175-90 170-80 145-65
1 ;
;
i
150-75
165-85
150-70
;
;
;
135-55
120-35
1
1
0 ;90-100190-100185-95 160-75
0 180-100;75-100;70-100165-95
0 ;80-100175-100170-100;55-80
1
1
I
0 195-100 90-100 70-95 125-50
0 ;95-100;90-100;80-100140-55
0 195-100195-100175-95 135-65
I I 1
; I 1
;
1
1
0 195-100190-100170-95 125-50
0 ;95-100;90-100;80-100140-55
0 ;95-100'95-100175-95 135-65
1
1 1
1 1
A-4 1 5-20 175-90 75-85
A-1, 135-75 140-75
1
A-2, 1 I
A-4 I 1
; ;
; ;
A-2 1 0-5 175-100175-100
1A-2, A-6; 0-5 165-90 150-90
1 1 I
1 I
'
1 1 1
; ; ;
IA -2
35-70
See footnote at end of table.
70-75
; Pct
; 10-20
1 30-40
120-30
;
1
1
120-30
120-30
I
115-25
140-65
I
1
140-45
1
15-25
20-40
I 20-40
1
1
1 15-25
; 20-40
; 20-40
1
5-10
10-20
10-15
NP
NP
; 5-10
1
; 5-10
;
1
I
; 20-25
5-10
20-35
50-60 120-40 I
30-65 20-50 20-30 1 NP -5
NP -5
10-20
5-15
NP -5
10-20
5-15
5-20
50-65 ;20-30
35-65 125-45
; 5-10 150-80 ;50-75 140-65 15-30
1
1 ' 1
30-60 140-60 35-55 10-35
1 1
0-10
; 15-20
20-30
1 5-10
1
1
I
I NP
138
TABLE 13. --ENGINEERING INDEX PROPERTIES --Continued
SOIL SURVEY
Soil name and
map symbol
1 1
;Depth;
1 1
I
i
I Classification IFrag-
1
USDA texture I I Iments I
I Unified I AASHTO I> 3 1
;inches;
Percentage passing
sieve number--
;
4 I 10
43
Limon
1414
Morval
45*:
Morval
Tridell
46, 47
Nihill
48
Northwater
49, 50, 51
Olney
52
Parachute
1In 1 1
I I
1 0-5 ;Silty clay loam ICL
1 5-60lSilty clay loam,;CH, CL
I silty clay, 1
1 clay. 1
1 1 1
I 0-5 ;Loam ICL
1 5-17;Silty clay loam,;CL
; I clay loam. I
117-60;Stony clay loam,ICL, SC
1 I stony loam. 1
1 ; 1
1 1 1
1 1 1
I 0-5 ILoam ICL
1 5-17lSilty clay loam,ICL
I 1 clay loam. 1
117-60IStony clay loam,ICL, SC
1 1 stony loam.
I 0-10;Stony loam
11
1 1
; ;
110-60Very stony loam
11
1 1
I 0-11IChannery loam---IGM,
1 I GM -GC,
1 1 I SM, ML
111-60;Very channery IGM, GM -GC
I I loam, very 1
1 1 channery sandy I
; loam. I
1 1 I
I 0-25;Loam ICL -ML,
1 1 I SM -SC
125-50'Very channery IGC, GM -GC
1 clay loam, very;
1 channery loam. I
150 ,Unweathered 1
1 1 bedrock. 1
1 ; 1
I 0-121Loam ICL -ML, ML A-4
112-33;Sandy clay loam ISC, SM-SCIA-4,
133-431Gravelly sandy ISC, IA -2
1 I clay loam, 1 SM -SC, ;
1 I gravelly sandy I GC, I
1 I loam. I GM -GC '
143-60IVery gravelly IGM,
1 I sandy loam, I GM -GC,
I very gravelly 1 GC
1 1 sandy clay 1
1 I loam. 1
1 1 1
I 0-5 ;Loam 1CL-ML
15-18ILoam
11
1 1
1
1 1
11
1 1
118-29IVery channery
1 I loam, very
1 1 channery sandy
1 1 loam.
1 29 (Unweathered
1 bedrock.
1
1
;CL -ML,
I GM -GC,
I SM -SC
;ML
1A-6
1A-7
A-6
A- 6
A-6
A-6
A-6
IA -6
;A-4
IA -4
;A-2,
A-1,
1A-4
A-6,
A-2,
A-4
1 I
1 1
See footnote at end of table.
1 Pct
0
0
0-5
I 0-10
;15-35
1 0-5
1 0-10
1
115-35
I 1 5-20
135-70
A-4; 0-5
1
1
A-2;
1
; 100 1100
100 ; 100
1
IN --100g180-100165-95
; ;
;75-85 170-80 155-70
1 ; 1
1 1 1
190-100185-100180-95
185-100180-100165-95
I 40 1 200
1 ;
I
195-1001700
195-100165-9-95
1 1
1 1
85-100180-95 160-75
160-80
1
175-85 170-80
165-75
1 ;
1 ;
165-95 160-90
I I
160-85 150-75
1 1
0-5 130-60 120-50
I I
1 ;
1 1
I 0 175-95 175-90
1
125-30 140-60 140-50
1
1 11
1 I 1
--- 1 ---
1 1
1 1
1 1
1
170-80
1
;55-70
155-65
1
;55-75
135-65
I
;15-40
60-85
35-45
;Liquid I Plas-
1 limit 1 ticitl
1 1 index
;40-60
160-75
160-80
;
1 30-50 15-30
1 40-60 20-40
1
;
1 30-40 10-15
1 30-40 10-15
1
; 25-35 10-15
1
1 30-40 10-15
1 30-40 10-15
1
40-60 ; 25-35 10-15
40-55 ; 20-30 5-10
1
1 15-25 NP -5
25-35 5-10
1
1
1 20-30 NP -10
1
1
1
1 20-30 5-10
; 20-35 5-15
;
;
1 ;
I I
1 20-35 5-10
1 20-35 5-15
1 20-30 5-15
1
1
1
1
1
1
1
1 20-30 5-10
1
1
1
1
Pet
150-65
130-60
110-35
I
;45-65
;30-40
I 0 195-100195-100165-90 150-70
0 195-100175-90 165-85 135-45
1 0 150-85 150-75 135-55 120-35
1
1
1 1 ;
1 ; 1
0 130-50 30-50 120-35 110-25
1
1 1 1
I 1 1 1
1 1 1
11 1 1
1 ; 1
0 190-100190-100165-95 150-75
0 175-100175-95 170-95 135-75
1
1 1 1
5-30 25-40 120-30 115-30 110-20
1
1
1
1
A-61
;A-2, A-1
1
IA -4
ICL, 1A-4, A-6
1 CL -ML, 1
SM -SC, 1
1 SC 1
;GM -GC, GM A-1, A-2
1
1
1
15-30
NP -15
20-35
15-25
5-15
NP -1C
IF LE AREA, COLORADO
TABLE 13.--ENGINEENING INDEX PHOPEHT1ES--Continued
139
name and ;Depth; USDA texture
map symbol 1 1
1 In I
I ,
I I
1 0-5 ;Loam
1 5-18:Loam
1
1 1
118-291Very channery
I loam, very
1 channery sandy
I loam.
29 ;Unweathered
1 bedrock.
hone 1 0-8 ;Loam
arachute
I, 55, 56
'otts
1*, 58*, 59*:'
)otts
[ldefonso
1 Classification 1Frag- 1 Percentage passing
1 :meats I sieve number--
AASHTO 1> 3 1 1 ; 1
;inches: 4 I 10 1 40 1200
; Pct I 1 +
1 , 1 1 ,
1 1 1 1 1
1 1 1 ; I
A-4 1 0 190-100190-100165-95 150-75
'A-4, A-61 0 175-100175-95 170-95 135-75
1
; 1 1 1 1
, 1 , I I
I I I
11 1 1 1 I
I 1 1
125-40 120-30 115-30 110-20
1 1 1 +
11 1 ,
1 1 1 1
1 i 1 1
I' I
190-100180-95 170-90 150-70
185-100175-95 160-90 135-65
II I I
I I I
I I I
1 Unified
1
1CL-ML
1CL,
1 CL -ML,
1 SM -SC,
1 SC
;GM -GC, GM1A-1, A-21 5-30
1 1
1 i
;
I 1 1
1
I 1
1CL, CL-MLIA-4, A-61 0
1A-4, A-6; 0-5
1
1
;A-2
1 I
1 8-28;Sandy clay loam,1CL,
1 1 loam. 1 CL -ML,
I 1 11 SM -SC,
I 1 11 SC
128-52IChannery sandy 1GM-GC
; 1 clay loam, very;
; 1 channery sandy I
1 clay loam. 1
1 52 ;Unweathered 1
1 1 bedrock. 1
,1 ,
0-4 ;Loam IML
4-281Clay loam ICL
28-60;Loam IML
I 1 1
,1
1 0-4 ;Loam 1ML
1 4-281Clay loam 1CL
128-601Loam ML
; 1
0-8 1Stony loam
8-601Very stony loam,
1 very gravelly
sandy loam.
), 61 I 0-8 Loam CL,
Rhone 18-28iSandy clay loam, CL,
1 11 loam. CL -ML,
1 1 SM -SC,
I 1 SC
128-52IChannery sandy GM -GC
1 1 clay loam, very
1 1 channery sandy
1 1 clay loam.
1 52 1Unweathered
1 1 bedrock. 1
i
2*: 1 1
Rock outcrop. 1 I
I I
Torriorthents. 1 1
I i
1 0-601Loam IML
I 1 1
,I 1
I 0-9 ;Silty clay loam ICL
1 9-241C1ay loam, clay,ICL
1 1 silty clay loam:
24-30;Very channery IGM-GC,
1 loam, channery 1 CL -ML
I clay loam, 1
loam. I
30 ;Unweathered '
SM, GM
SM, GM
A-4
;A-6
IA -4
;A-4
1A-6
1A-4
1A-1,
;A-1,
1
CL-MLIA-4,
1A-4,
1
1
1A-2
3
Silas
4
Tanna
I ; bedrock. 1
See footnote at end of table.
1
1A-4
1A -6
1A-6,
1A-2
1
1Liquid
1 limit
1
120-35 I
1 20-40 1 5-20
1
1 +
,
+ 1
� I
1 +
1 0-10 145-60 140-55 130-50 115-30 1 20-30 15-10
i
1 1 1 1 I 1 1
I I 1 + 1I
I I II '
1 i i I i 1
1 0 175-100175-100165-90 150-70 1 25-35 1
0 175-100175-100170-100155-80 125-35 1
1 0 175-100175-100165-90 150-70 1 25-35
1 1 1 1 1 1
1 1 1 1 1 1 +
1 0 175-100175-100165-90 150-70 25-35 1 NP -5
I 0 175-100175-100170-100155-80 25-35 1 10-15
I 0 175-100175-100165-90 150-70 25-35 1 NP -5
I 1 1 1 I: 1 I
A-21 5-25 150-75 140-60 130-45 120-35 120-25 1 NP -5
A-2;20-70 140-75 135-60 125-50 110-30 120-25 I NP -5
1 i I
1 I 1
1 I 1 1 1 I 1
I 1
1 1 I
A-61 0 190-100180-95 170-90 150-70 120-35 1 5-15
A-61 0-5 185-100175-95 160-90 135-65 120-40 1 5-20
111 1 1 I
1
1
, 1
1 0-10 45-60 40-55 130-50 115-30 1 20-30 ; 5-10
1 i 1
1 1
1
1
1
1
I
1
1
1
20-25 I NP -5
1
1
35-45 1 15-20
35-45 1 15-25
i
25-30 I 5-10
Plas-
ticity
index
Pet 1
20-30 1 5-10
20-35 1 5-15
1
15-25 1 NP -10
1
1
1
5-15
NP -5
10-15
NP -5
1 1
i
1
1
1
1
j 1
I 1
1 0-10 190-100 80-100175-95 155-80
i 1
1 1
1
i
A-71 0-5 190-100190-100190-100185-95
A-71 0-5 190-100190-100180-95 175-90
1 1 1 1 1
1 0-10 140-100130-95 125-80 120-70
i 1 1 1
1 ; 1
i i i
I
I 1 1
I I
140
TABLE 13.7 -ENGINEERING INDEX PROPERTIES --Continued
SOIL SURVEY
Soil name and
map symbol
I 1
{Depth{ USDA texture I
Unified
Classification
AASHTO
IFrag- 1
Iments 1
> 3 I
inches; 4
Percentage passing
sieve number --
10 1 40 200
;Liquid
I limit
Plas-
ticity
index
65*.
Torrifluvents
66*:
Torriorthents.
Camborthids.
Rock outcrop.
67*:
Torriorthents.
Rock outcrop.
68, 69, 70
Vale
71*:
Villa Grove
Zoltay
72
Wann
In
{
1
i i {
0-111Silt loam ICL,
11-26ISilty clay loam,ICL
I clay loam, silt;
I loam. {
126-601Loam, silty clay{CL,
{ I loam, silt
I I loam.
1 1
1 1 I
I 0-4 ;Loam ICL
1 4-151C1ay loam, sandy1CL,
I I clay loam. 1
115-60{Sandy loam, loam{SM-SC,
I CL -ML
CL-MLIA-4, A-6
;A-4,
A-6,
1 A-7
CL-MLIA-4, A-6
{
{A-6
SC {A-6
I 0-191Loam
119-60;Gravelly clay,
I cobbly clay,
1 1 cobbly clay
{ { loam.
1 1
ICL
ICL,
1 SC
1
1 0-171Sandy loam ISM,
117-60{Sandy loam, fine{SM,
{ I sandy loam, 1
1 I coarse sandy 1
{ 1 loam. 1
1 i
IA -2, A-4
1A-6
GC, 1A-6, A-7
SM-SC1A-2,
SM-SCIA-2,
{
A-41
A-41
Pct
1
1
1
1
1
1
1
1
{
1
O 1 100
O 1 100
{
O 1 100
1100
100
1
1 I
1
I
1
0 { 100 195-100170-90
0 1 100 195-100170-95
1
O 1 100 195-100;60-70
{ i i
i { {
0-5 180-95 180-95 165-75
5-30 165-85 160-80 150-75
I I I
70-85
70-80
100
90-100170-90
90-100170-95
85-100160-95
0 195-100195-100
O 195-100195-100
1
i
I
1
1
1
1
150-60 I
145-70 1
1 1
{
l
3-55 ;
I
I I
1
150-65 I
145-70 I
1
1
{
{ i
130-45
130-45 I
1
{ {
1
Pet
{
25-40 I 5-15
30-45 1 10-25
25-40 I 5-15
25-35 { 10-15
30-40 { 15-25
20-30 1 5-10
1
25-35 110-15
30-50 115-30
1
{
<25 I NP -5
0-26 I NP -5
* See description of the map unit for composition and behavior characteristics of the map unit.
ULE AREA, COLORADO
WATER FEATURES
a
11)
O
4-
C. C
0 0
CO N
=
O
y
O
N
N CO
a4-)
CL 0
m
N
r1
W 0)
0)
S.,.)
CO N
= 0) N
4 0)
C
•• 0) O
0) .0 i
i .1-) Y (0
CO 0 S
i 0
• CO 4-
-C .0
N .0 0)
(0 a0
N .0
s 0) N
U 3) 0.
a 0) 0)
N U Ca
N 0
E 1=
s-
4., y T ri N
Ci> (0
•. O •» C
CO 0) 0
0. 0
0)
corrosion
0
CC
0)
U
O
U
0) i
CO4.)
0)
0 •N
0
C
•
0)
4)
0
i
▪ O • 3 3 3 3 3 3 3 3
3 • 3 ▪ 3 -o 3 3 3 3 3 0 0
0 0 O 0 0 0 0 0 0 0 0 0 0 0 0 .0 -]
-.0 .] .0 -5 ..] ...1 .] __ . .-1 ._.0 -1.a .] - - -- .- --
1 4 1 1 1 1 1 4 1 1 I I t
1 0) 1 1 0) 0) 1 1 1 1 1 1 0) 1 1 1 1
I 4a 4 4 •.) 4-> 4 4 1 1 1 4 4.) 4 1 1 1
1 co 1 1 (0 (0 1 1 1 1 1 I CO/ 1 1 1
1 L 4 1 i i / 4 4 1 1 1 i 1 1 1 I
0) .0 .0 N (1) .0 .0 "t
'O L
t0 0 0L 'O •0 00 101 00 00 00 0)0 '0 00 00 IDD 00
•.a 0 ..-I •.1 0 0 ..-1 ..i •.i ..-f 0 •.-4 •.I •.t •.1
S X S S 00 0 x S S x S x X x - 0__._ --
CO
4 4) C
4) N 0
00 0 •.I
0) S-
4-3
.1-) 41 U
O CO
�..
>, o s
(0 C .J
H co as hU C).
O N 0 •.i 0)
V) N 0 T Q
1 0 0)
I rl N
C7 .0
LA Q N
0) .0
s •I')
Cil •.) C
- O 0
lb C CO X
F •t)
C
0) 0) 0
.-i i 00 -.4
.0 0 0 +-)
CO E r1 CO
4a •0 4.
N 0 a
i 0 0 CO
0) (0 r1
1) 0)
(D E
3
• A
.0 . ••
0
(0
.0
0▪ 0
C N
d N
0 0)
0 r1
0
rl
C
• (0
0
E
0
v
N
cr
O 0
.0
+-) E
•.I i+
C N
(r 0)
• t
'O F
.0
Frequency
3 3 3
0 0 0
] -.1
I 1 1 4 1 4 1 I 1
1 1 1 1 1 1 1 1 1
I 1 4 I 1 I 1 1 1
0) 0) 0) 0) 0) 0) 0) 0) 0)
1> 4a b) .I.) 4.) .0 4) 4-D 4a
(0 CO CO m CO CO CO CO CO
L. i i i i i i i i
0) 0) 0) 0) 0) CO 0) 0) CO
3 •0 171 'O 3 3 3 •0 '0 3 •0 •0 'o0 0 0 0 0 0 0 0 0 0 0 0 0 0
'G
.-) f S f ._a ._] .1 z z .-) S f f S
d 0) 0)
r -I .i rl
A .0 .0 I
CO CO CO 1
CL '0 0. P. I
CL i ¢' n.
CC
CC x - - -- C -- - -- -
O o O O
C I O 7 0) O O O O O O O N ? O O O 0 0
1-4 I NO 1 1 >O >O V' 54:) NO O 1 1 50 >D , >O
O On n n A /5 n n O 0 n n n n n
N .- N
O O O O O O O 0 O O 0 O b C) C 0 0
14-,I NO 50 50 >o .o 50 ,C) .o .o .0 VDn n • /5
n n n n n n n n n n n n n n
C
(0 .i
0
0) .0
E E
O T
C N
0.
CO
O £
V)
0) 0) 0) 0) 0) 0) 0)
C C C C C C C
O O O 0 0 O O
z z z z z z z z z
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
0) 0)
O C
O 0
N 0) 0) 0) 0) 0) 0) N
O 0 0 C C C C C
O 0 0 0 0 0 0 0
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
U U q A m m W C1 a CO Ca U Cl U U U U
4)
C
N
(0
• • 1-
* *
N
O•
O
i
U
+)
a
O
U
O
a
0 0 0 00IDC
CO 0 0
•0 1-1 r1 U +) (0
(0 (0 (0 CO 0 rl 4-1
.7 > 1/40 U U 0 0) 0) •0
L. N •• N 0) •. y) N • 0)
-C ^Q * .0 O.. * C 6 * CO
m in t-- x rn
t- T
m
h0
O S
0
0
••
*
CO0.1
(0
.0
00
H
(0 O
O 0 * 0
i ▪ Cn
L. 0) '- 13)
L
CO .0 U
E 0
..I -I -0 * 0
50 U 0- UCO U
145
See footnote
• •
RIFLE AREA, COLORADO 147
TABLE 15. --SOIL
c)
.�
10
0
0
U
0)
L.,
CI)
0
U
a)
.D
.f]
m
y
L
0)
y
m
.0
00
00
C
-r1
0
0
0
H
Ls.
Hardness
.0
a
0)
R)
.0
.4)
C
0
as
.0
y
0
.0
y
C
0
m (1) 0 O)
.3) 4-5 .0 4.5
0) a) 0 m
L.
a) Q) 1-
0 1--
a+
a 3 3 '0 3 3 3 3 • 3 3 V 'O 3 3
U 0 0 0 0 0 0 0 O 0 U 0 0 O 0 0 0
a a a a a a a .1 .-a .) ._)
I 1 1 1 1 1 1 1
1 f 1 0) 0) 1 1 a) 0) a) as a) 1 1 1 0)
1 1 1 1 .0 .3) 1 1 y .0 .V y y 1 1 1 y
I 1 I m m 1 I m (0 m m m 4 I f m
I I 1 1 S_ 1_ 1 1 - 1- • 3. L 1 1 1 1-
t 0) 0) 0) 0) N CO a) S. 2 a)
Ufl 0▪ 0 Oa t)(1 '0 "0 00 00 'O 'O •O 'O •O 0 00 00 -0
•4•1 -r1 •r1 •r1 0 0 •r1 •-4 0 0 0 0 0 .,i -.1 •r4 0
2 S 2 2 z. X 2 z .- % S X 2 2 2 _-
1 1 1
1 1 1
1 1 1
a) a) a)
-0 .0 .0
(0 CO m
1_ (_ )_
a) a) a)
0 3 -0 3 0
O 0 0 0 0
Moderate---
Moderate---
U
4.5
co
L
0)
0
0
z
Moderate---
1 1 1 1
1 1 1 1
1 f 1 1
CO a) (1) 0)
a0 a) .N a.)
CD m CO CO
L. L 3.
a) a) a) a)
3 .0 0 '0 3 3 3 -o
0 0 0 0 0 0 0 0
.-3 S .-) J .-] 7-
a) 0) 0) 0)
ri r♦ r-1 r'1
.0 .0 .0 1 I 1 .0
(0 m m1 1 1 CO
'O a 0. a 4 1 1 a
s_ a a a a
(0 ..-I .r1 •r1 •r1
2 CC a CC cc
0 0 0 0
s= 0 0 CD 0 0 0 0 0 '0 0 a Z 10 0 0 0 10
• 10 LJ' '0 10 10 10 )0 VD 1 10 1 1 1 10 10 10 1
A n n n n n n n O n O 0 0 A n n 0
N N
0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1L 10 10 10 t0 10 '0 1D 1D '. 10 'D 10 1D 10 '0 1D 10
A n n n n n n n n n n n n n n A n
Frequency
1 U
0 •r 0.
L 00
'0 0 0
>,
2 00
C
f0 r-1
0
O .0
E E
CD a,
C 0
r+ 0.
•r1 f0
O E
V)
as as a) a) 0) C) 0) d) a) 0) a) a) a) a) 0) 0) 0)
C C C C C C C C C C C C C C C C C
0 0 0 0 0 O O O O O O O O O O O O
Z Z 2 Z Z 2 Z Z 2 Z Z Z Z Z Z Z
CO CO U W CO 0 to W 2 P] co CO CO 03 CO 0
3-. .7
3. E
01 •7 0 SG
Cr)
H ri
C 30 (0
O 0- >
E 3 •• s-
•ri 0 * O
m 1 (3 Z tri
V a)
In y a)
O 0
.0 2
0 >. 0 0 0)
U1 as (0 m 0
0 1.. •• i 0
^H m * m .0
00 c\I I:1- ma 0
a In N
10
sn
10) ▪ 0
t ay.)
�0
�a
Ildefonso
m
10 0
0
DZ
0
Torriorthents.
a)
H
.0
CO
y
4-+
0
C
CO
1-,
CO
O
y
0
•1)
0
0
w
0)
a)
N
148
corrosion
4)
4)
4)
L
0
3
O
U
3 3 3 3 3 3
O O O 0 0 0
a a a a a a
'O 1 4)
o 0 H 1 1 4.) 1 1
4, 0) 1 1 CO 1 1
@ 4) 1 1 L 1 1
N 0 4-, .0 .0 4) - ..c
rl U V) h0 00 '0 00 00 00
C .r -I .,..1 0 ..I •Ha ..-1
x x E x x x
1 I
1 1
x
0
O
3-
0)
CA
4)
.0
@
1)
L
0)
3
.0
.I
H 1
10
N c 4)
V) 0 4)
C 0 '.-1 @
(1) L 4) L
U 4)
o (a 'O 3
CL O O
a
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Hardness
t
C
a H
30
N
a)
L
4)
O
Moderate
Moderate
O O O O
'0 SO VD
/. /. /. n
O
+ ) O O O O O M
a 4)I 1
CD 0. t.0 .o ( .o '0 O
30 n A /. A A
N
a H
0) 0) 7
L fn -)
N 1 1 1 1
C L 1 1 L
o 0. 1 1 a
_ __ Q __ __ _ -_ __ ¢ _- __
____________________________________________________
1 1
C 1 1
O 1 1
•H 1 1
C N 1 1 1
•.1 CO 44 1 4-i
'0 L 4) 1 4)
O 7 •.1 •.1
O 0 L 3-
'--4 00 CO
W
Frequency
3 3
O 0
@ 4) 4) 4) 4) CO
U C C C C 0
O 0 0 0 0 0
O Z Z 0
1 0
0 •.1
L 00
'0 0 0 30 0
5 10
•o
3
@ .-1
0
U .0
E E
@
C
a
O E
N
4. O
V) CO •1-1 ..I
<0 C L L
H C • L • L
•.1 CO * O * O
an v) 7H toH .DH
.O .D .0 )D
Carnborthids.
Rock outcrop.
O
SOIL SURVEY
April 17, 2006
Specialty Restaurants Corporation
8191 East Kaiser Blvd.
Anaheim, CA 92808
Attention: Mr. David Tallichet
Subject: Radiation Survey
Battlement Mesa, Lot 1
Garfield County, Colorado
Project No. GS04726-210
CTL I THOMPSON
ECEONIC
D
APR 2 0 200n
APR 2 0 2006
As requested, we performed a radiation survey of the proposed Battlement
Mesa, Lot 1 Subdivision in Garfield County, Colorado. This letter describes the site
and our survey procedure, and discusses the results of our radiation survey.
Battlement Mesa, Lot 1 Subdivision is planned on a parcel located north of
County Road 300 (Stone Quarry Road) about 2 miles southwest of Parachute,
Colorado. The site is an approximately 35 -acre parcel that is bordered by County
Road 300 on the south. The Battlement Mesa R.V. Park borders the site on the east.
The Colorado River flows through the north portion of the proposed subdivision.
Development of the property will occur south of the Colorado River. A drainage ditch
flows through the site form the south property boundary in a northerly direction to the
Colorado River. Ground surface on most of the site slopes to the north at grades of
approximately 5 percent. Wetlands areas are present near the Colorado River. The
site appears to have been used for agricultural purposes. Vegetation on the site
consisted primarily of grasses, weeds and brush.
On April 12, 2006, our staff engineer, Mr. Edward R. White, visited the site and
performed a radiation survey. Our survey consisted of walking along lines the length
of the site south of the Colorado River in a north -south direction. Lines were spaced
approximately 30 to 50 feet apart. We observed radiation measurements that were
taken with a Ludlum Instruments, Inc. Model No. 19 Micro -R -Meter carried at arms
length (approximately 2 feet above the ground surface). Radiation readings were
observed by continuously glancing back and forth from the Micro -R -Meter to the line
of travel. We observed radiation measurements averaging between 8 and 15
microroentgens per hour. Some areas had readings as low as 2 microroentgens per
hour and as high as 18 microroentgens per hour.
234 Center Drive !Glenwood Springs, Colorado 81601
Tolcnhnno Q7(1-Q41r,-7RfQ Fax' A7Cl-q45-7411
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In our opinion, these readings are normal background radiation for the area in
Garfield County near the parcel and do not indicate contamination. Excavations at
individual sites will expose the subsoils and could yield different radiation readings. It
may be appropriate to perform a radiation survey of the completed foundation
excavations for buildings at individual locations on the property. The owner may
want to consider installing a gravel layer below floor slabs that is incorporated into a
foundation drain and a "stand pipe" added to the foundation drain that could be retro-
fitted with a fan to mitigate possible radon gas if warranted by future readings.
We appreciate the opportunity to work with you on this project. If you have
any questions, please call at your convenience.
Very Truly Yours
CTL 1 THOMPSON, INC.
Edward R. White, E.I.
Staff Engineer
(5 copies sent)
SPECIALTY RESTAURANTS CORP.
BATTLEMENT MESA, LOT 1, SUBD.
PROJECT NO. GS04726-210
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BAKER HOGAN HOUR
ARCHITECTURE & PLANNING / A.I.A / P.C.
P.O BOX 931, 160 EAST ADAMS, BRECKENRIDGE, COLORADO 80424 (970) 453-6880
PIONEER GLEN SUBDIVISION
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