HomeMy WebLinkAbout20080124.tiff Dwellings and Small Commercial Buildings—Weld County,Colorado,Southern NW4NE4 27-2n-62
Part
• Dwellings and Small Commercial Buildings
Soil properties influence the development of building sites, including the selection
of the site,the design of the structure,construction,performance after construction,
and maintenance.This table shows the degree and kind of soil limitations that affect
dwellings and small commercial buildings.
The ratings in the table are both verbal and numerical. Rating class terms indicate
the extent to which the soils are limited by all of the soil features that affect building
site development. Not limited indicates that the soil has features that are very
favorable for the specified use. Good performance and very low maintenance can
be expected. Somewhat limited indicates that the soil has features that are
moderately favorable for the specified use. The limitations can be overcome or
minimized by special planning, design, or installation. Fair performance and
moderate maintenance can be expected. Very limited indicates that the soil has
one or more features that are unfavorable for the specified use. The limitations
generally cannot be overcome without major soil reclamation, special design, or
expensive installation procedures. Poor performance and high maintenance can
be expected.
Numerical ratings in the table indicate the severity of individual limitations. The
ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate
gradations between the point at which a soil feature has the greatest negative
impact on the use(1.00) and the point at which the soil feature is not a limitation
(0.00).
Dwellings are single-family houses of three stories or less. For dwellings without
• basements, the foundation is assumed to consist of spread footings of reinforced
concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum
frost penetration, whichever is deeper. For dwellings with basements, the
foundation is assumed to consist of spread footings of reinforced concrete built on
undisturbed soil at a depth of about 7 feet. The ratings for dwellings are based on
the soil properties that affect the capacity of the soil to support a load without
movement and on the properties that affect excavation and construction costs.The
properties that affect the load-supporting capacity include depth to a water table,
ponding, flooding, subsidence, linear extensibility(shrink-swell potential), and
compressibility. Compressibility is inferred from the Unified classification. The
properties that affect the ease and amount of excavation include depth to a water
table, ponding, flooding, slope, depth to bedrock or a cemented pan, hardness of
bedrock or a cemented pan, and the amount and size of rock fragments.
Small commercial buildings are structures that are less than three stories high and
do not have basements. The foundation is assumed to consist of spread footings
of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth
of maximum frost penetration,whichever is deeper.The ratings are based on the
soil properties that affect the capacity of the soil to support a load without movement
and on the properties that affect excavation and construction costs.The properties
that affect the load-supporting capacity include depth to a water table, ponding,
flooding, subsidence, linear extensibility (shrink-swell potential), and
compressibility(which is inferred from the Unified classification).The properties that
affect the ease and amount of excavation include flooding, depth to a water table,
ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a
cemented pan, and the amount and size of rock fragments.
1. 12 I≥ Natural Resources Web Soil Survey 2.0 8/1/2007
"1NR Conservation Service National Cooperative Soil Survey Page 1 of 2
2008-0124
Dwellings and Small Commercial Buildings—Weld County,Colorado,Southern NW4NE4 27-2n-62
Part
• Information in this table is intended for land use planning, for evaluating land use
alternatives, and for planning site investigations prior to design and construction.
The information, however, has limitations. For example, estimates and other data
generally apply only to that part of the soil between the surface and a depth of 5 to
7 feet. Because of the map scale, small areas of different soils may be included
within the mapped areas of a specific soil.
The information is not site specific and does not eliminate the need for onsite
investigation of the soils or for testing and analysis by personnel experienced in the
design and construction of engineering works.
Government ordinances and regulations that restrict certain land uses or impose
specific design criteria were not considered in preparing the information in this table.
Local ordinances and regulations should be considered in planning, in site
selection, and in design.
Report—Dwellings and Small Commercial Buildings
[The information in this table indicates the dominant soil condition but does not
eliminate the need for onsite investigation.The numbers in the value columns range
from 0.01 to 1.00.The larger the value,the greater the potential limitation.The table
shows only the top five limitations for any given soil. The soil may have additional
limitations]
Dwellings and:Small Commercial Buildings—Weld County,Colorado,Southern Part
Map symbol and soil Pct.of Dwellings without basements Dwellings with basements Small commercial buildings
name map
• unit Rating class and Value Rating class.and Value Rating class and Value
limiting features limiting features limiting features
5—Ascalon sandy I
'.. loam, 1 to 3 percent
Hslopes
Ascalon 90 Not limited Not limited Not limited
Data Source Information
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 7, Jan 10, 2007
• Natural Resources Web Soil Survey 2.0 8/1/2007
Conservation Service National Cooperative Soil Survey Page 2 of 2
• •
Lawns,Landscaping,and Golf Fairways—Weld County,Colorado,Southern NW4NE4 27-2n-62
Part
Description
This interpretation rates soils for their use in establishing and maintaining turf for
lawns and golf fairways and ornamental trees and shrubs for residential or
commercial landscaping. Lawns and landscaping require soils on which turf and
ornamental trees and shrubs can be established and maintained. Golf fairways are
subject to heavy foot traffic and some light vehicular traffic.Cutting or filling may be
required.
The ratings are based on the use of soil material at the site,which may have been
altered by some land smoothing. Irrigation may or may not be needed and is not a
criterion in rating. The ratings are based on the soil properties that affect plant
growth and trafficability after vegetation is established. The properties that affect
plant growth are reaction; depth to a water table; ponding; depth to bedrock or a
cemented pan; the available water capacity in the upper 40 inches; the content of
salts, sodium, or calcium carbonate; and sulfidic materials. The properties that
affect trafficability are flooding, depth to a water table, ponding, slope, stoniness,
and the amount of sand,clay,or organic matter in the surface layer.The suitability
of the soil for traps, tees, roughs, and greens is not considered in the ratings.
Not considered in the ratings, but important in evaluating a site, are the location
and accessibility of the area,the size and shape of the area and its scenic quality,
vegetation, access to water, potential water impoundment sites, and access to
public sewer lines. Soils that are subject to flooding are limited by the duration and
intensity of flooding and the season when flooding occurs. In planning for lawns,
landscaping, or golf fairways, onsite assessment of the height, duration, intensity,
•
and frequency of flooding is essential.
The ratinga are both verbal and numerical. Rating class terms indicate the extent
to which the soils are limited by all of the soil features that affect the specified use.
"Not limited" indicates that the soil has features that are very favorable for the
specified use. Good performance and very low maintenance can be expected.
"Somewhat limited" indicates that the soil has features that are moderately
favorable for the specified use.The limitations can be overcome or minimized by
special planning, design, or installation. Fair performance and moderate
maintenance can be expected."Very limited"indicates that the soil has one or more
features that are unfavorable for the specified use.The limitations generally cannot
be overcome without major soil reclamation, special design, or expensive
installation procedures.Poor performance and high maintenance can be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations
between the point at which a soil feature has the greatest negative impact on the
use(1.00) and the point at which the soil feature is not a limitation (0.00).
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
• U� Natural Resources Web Soil Survey 2.0 811/2007
Conservation Service National Cooperative Soil Survey Page 4 of 4
S •
Lawns,Landscaping,and Golf Fairways—Weld County,Colorado,Southern NW4NE4 27-2n-62
Part
III Lawns, Landscaping, and Golf Fairways
Lawns,Landscaping,and Golf Fairways—Summary by Map Unit—Weld County,Colorado,Southern Part
Map unit symbol Map unit name Rating Component Rating reasons Acres in AOi Percent of
name(percent) (rating values) AOI
5 Ascalon sandy Not limited Ascalon(90%) 36.6 100.0%
• loam,1 to 3
percent slopes
[Totals for Area of Interest(AOl) 36.6 I 100.0%
Lawns,Landscaping,and Golf Fairways—Summary by Rating Value
Rating Acres in AOI Percent of AOI
Not limited 36.6 100.0%
S
. QNatural Resources Web Soil Survey 2.0 8/1/2007
Conservation Service National Cooperative Soil Survey Page 3 of 4
Roads and Streets,Shallow Excavations,and Lawns and Landscaping—Weld NW4NE4 27-2n-62
County,Colorado,Southern Part
Roads and Streets, Shallow Excavations, and Lawns and
Landscaping
Soil properties influence the development of building sites, including the selection
of the site,the design of the structure,construction,performance after construction,
and maintenance.This table shows the degree and kind of soil limitations that affect
local roads and streets, shallow excavations, and lawns and landscaping.
The ratings in the table are both verbal and numerical. Rating class terms indicate
the extent to which the soils are limited by all of the soil features that affect building
site development. Not limited indicates that the soil has features that are very
favorable for the specified use. Good performance and very low maintenance can
be expected. Somewhat limited indicates that the soil has features that are
moderately favorable for the specified use. The limitations can be overcome or
minimized by special planning, design, or installation. Fair performance and
moderate maintenance can be expected. Very limited indicates that the soil has
one or more features that are unfavorable for the specified use. The limitations
generally cannot be overcome without major soil reclamation, special design, or
expensive installation procedures. Poor performance and high maintenance can
be expected.
Numerical ratings in the table indicate the severity of individual limitations. The
ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate
gradations between the point at which a soil feature has the greatest negative
impact on the use (1.00) and the point at which the soil feature is not a limitation
(0.00).
• Local roads and streets have an all-weather surface and carry automobile and light
truck traffic all year.They have a subgrade of cut or fill soil material;a base of gravel,
crushed rock,or soil material stabilized by lime or cement;and a surface of flexible
material(asphalt), rigid material(concrete), or gravel with a binder.The ratings are
based on the soil properties that affect the ease of excavation and grading and the
traffic-supporting capacity. The properties that affect the ease of excavation and
grading are depth to bedrock or a cemented pan, hardness of bedrock or a
cemented pan, depth to a water table, ponding,flooding, the amount of large
stones, and slope.The properties that affect the traffic-supporting capacity are soil
strength (as inferred from the AASHTO group index number), subsidence, linear
extensibility (shrink-swell potential), the potential for frost action, depth to a water
table, and ponding.
Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet
for graves, utility lines, open ditches, or other purposes.The ratings are based on
the soil properties that influence the ease of digging and the resistance to sloughing.
Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan,the
amount of large stones,and dense layers influence the ease of digging,filling, and
compacting. Depth to the seasonal high water table, flooding, and ponding may
restrict the period when excavations can be made. Slope influences the ease of
using machinery. Soil texture, depth to the water table, and linear extensibility
(shrink-swell potential) influence the resistance to sloughing.
• USDA Natural Resources Web Soil Survey 2.0 8/1/2007
a Conservation Service National Cooperative Soil Survey Page 1 of 2
• •
Roads and Streets,Shallow Excavations,and Lawns and Landscaping—Weld NW4NE4 27-2n-62
County,Colorado,Southern Part
• Lawns and landscaping require soils on which turf and ornamental trees and shrubs
can be established and maintained. Irrigation is not considered in the ratings. The
ratings are based on the soil properties that affect plant growth and trafficability
after vegetation is established.The properties that affect plant growth are reaction;
depth to a water table; ponding;depth to bedrock or a cemented pan;the available
water capacity in the upper 40 inches; the content of salts, sodium, or calcium
carbonate; and sulfidic materials. The properties that affect trafficability are
flooding,depth to a water table,ponding,slope,stoniness,and the amount of sand,
clay, or organic matter in the surface layer.
Information in this table is intended for land use planning, for evaluating land use
alternatives, and for planning site investigations prior to design and construction.
The information, however, has limitations. For example, estimates and other data
generally apply only to that part of the soil between the surface and a depth of 5 to
7 feet. Because of the map scale, small areas of different soils may be included
within the mapped areas of a specific soil.
The information is not site specific and does not eliminate the need for onsite
investigation of the soils or for testing and analysis by personnel experienced in the
design and construction of engineering works.
Government ordinances and regulations that restrict certain land uses or impose
specific design criteria were not considered in preparing the information in this table.
Local ordinances and regulations should be considered in planning, in site
selection, and in design.
Report—Roads and Streets, Shallow Excavations, and Lawns
• and Landscaping
[The information in this table indicates the dominant soil condition but does not
eliminate the need for onsite investigation.The numbers in the value columns range
from 0.01 to 1.00.The larger the value,the greater the potential limitation.The table
shows only the top five limitations for any given soil. The soil may have additional
limitations]
Roads and Streets,Shallow Excavations,and Lawns and Landscaping—Weld County,Colorado,Southern Part
Map symbol and soil Pct.of Local roads and streets Shallow excavations Lawns and landscaping
name map
unit Rating class and Value Rating class and Value Rating class and Value
limiting features limiting features limiting features
5—Ascalon sandy i
loam, 1 to 3 percent , I
slopes
Ascalon 90 Somewhat limited Somewhat limited Not limited
- Frost action 0.50 Cutbanks cave 0.10
Data Source Information
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 7, Jan 10, 2007
• USDA Natural Resources Web Soil Survey 2.0 8/1/2007
Conservation Service National Cooperative Soil Survey Page 2 of 2
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