HomeMy WebLinkAboutBuilding Site Limitations (13067)Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 1 of 75058600505900050594005059800506020050606005061000506140050586005059000505940050598005060200506060050610005061400490500490900491300491700492100492500492900493300493700494100494500494900
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45° 42' 24'' N 111° 7' 25'' W45° 42' 24'' N111° 3' 53'' W45° 40' 48'' N
111° 7' 25'' W45° 40' 48'' N
111° 3' 53'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 12N WGS84
0 1000 2000 4000 6000Feet
0 300 600 1200 1800Meters
Map Scale: 1:20,900 if printed on A landscape (11" x 8.5") sheet.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
Very limited
Somewhat limited
Not limited
Not rated or not available
Soil Rating Lines
Very limited
Somewhat limited
Not limited
Not rated or not available
Soil Rating Points
Very limited
Somewhat limited
Not limited
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at 1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more accurate
calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as of
the version date(s) listed below.
Soil Survey Area: Gallatin County Area, Montana
Survey Area Data: Version 17, Dec 10, 2013
Soil map units are labeled (as space allows) for map scales 1:50,000
or larger.
Date(s) aerial images were photographed: Jul 28, 2011—Aug 19,
2011
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 2 of 7
Dwellings Without Basements
Dwellings Without Basements— Summary by Map Unit — Gallatin County Area, Montana (MT622)
Map unit
symbol
Map unit name Rating Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI Percent of AOI
50B Blackdog silt
loam, 0 to 4
percent slopes
Not limited Blackdog (90%)221.5 10.6%
Meagher (4%)
Quagle (3%)
Bowery (3%)
53B Amsterdam silt
loam, 0 to 4
percent slopes
Not limited Amsterdam
(85%)
530.9 25.5%
Quagle (5%)
Blackdog (5%)
Bowery (3%)
Meagher (2%)
64B Straw loam, 0 to
4 percent
slopes
Somewhat
limited
Straw (90%)Shrink-swell
(0.10)
0.4 0.0%
Straw (2%)Shrink-swell
(0.10)
448A Hyalite-
Beaverton
complex,
moderately
wet, 0 to 2
percent slopes
Somewhat
limited
Hyalite (70%)Large stones
(0.02)
118.1 5.7%
Beaverton (20%)Large stones
(0.20)
Beaverton (5%)Large stones
(0.21)
451C Quagle-Brodyk
silt loams, 4 to
8 percent
slopes
Not limited Quagle (70%)19.8 1.0%
Brodyk (20%)
Amsterdam (8%)
453B Amsterdam-
Quagle silt
loams, 0 to 4
percent slopes
Not limited Amsterdam
(60%)
56.2 2.7%
Quagle (30%)
Beanlake (6%)
Meagher (4%)
453C Amsterdam-
Quagle silt
loams, 4 to 8
percent slopes
Not limited Amsterdam
(60%)
20.1 1.0%
Quagle (30%)
Beanlake (4%)
Meagher (3%)
Bowery (3%)
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 3 of 7
Dwellings Without Basements— Summary by Map Unit — Gallatin County Area, Montana (MT622)
Map unit
symbol
Map unit name Rating Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI Percent of AOI
457A Turner loam,
moderately
wet, 0 to 2
percent slopes
Somewhat
limited
Turner (85%)Shrink-swell
(0.00)
439.2 21.1%
Beaverton (5%)Large stones
(0.20)
Turner (5%)Shrink-swell
(0.00)
509B Enbar loam, 0 to
4 percent
slopes
Very limited Enbar (85%)Flooding (1.00)148.0 7.1%
Nythar (10%)Flooding (1.00)
Depth to
saturated zone
(1.00)
Shrink-swell
(0.50)
510B Meadowcreek
loam, 0 to 4
percent slopes
Not limited Meadowcreek
(85%)
253.2 12.1%
511A Fairway silt loam,
0 to 2 percent
slopes
Not limited Fairway (85%)17.2 0.8%
Meadowcreek
(5%)
537A Lamoose silt
loam, 0 to 2
percent slopes
Somewhat
limited
Lamoose (85%)Depth to
saturated zone
(0.98)
104.5 5.0%
542A Blossberg loam,
0 to 2 percent
slopes
Somewhat
limited
Blossberg (85%)Depth to
saturated zone
(0.98)
78.2 3.7%
556A Threeriv-
Bonebasin
loams, 0 to 2
percent slopes
Very limited Threeriv (45%)Flooding (1.00)10.8 0.5%
Depth to
saturated zone
(1.00)
Bonebasin (45%)Flooding (1.00)
Depth to
saturated zone
(1.00)
Threeriv (5%)Flooding (1.00)
Depth to
saturated zone
(1.00)
748A Hyalite-
Beaverton
complex, 0 to 4
percent slopes
Somewhat
limited
Hyalite (70%)Large stones
(0.02)
67.2 3.2%
Beaverton (20%)Large stones
(0.20)
Turner (5%)Shrink-swell
(0.00)
Hyalite (5%)Large stones
(0.02)
Totals for Area of Interest 2,085.2 100.0%
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 4 of 7
Dwellings Without Basements— Summary by Rating Value
Rating Acres in AOI Percent of AOI
Not limited 1,118.8 53.7%
Somewhat limited 807.6 38.7%
Very limited 158.8 7.6%
Totals for Area of Interest 2,085.2 100.0%
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 5 of 7
Description
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.
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 of the soil. 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.
The ratings 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).
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
Rating Options
Aggregation Method: Dominant Condition
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 6 of 7
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
Dwellings Without Basements—Gallatin County Area, Montana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/21/2014
Page 7 of 7