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 490500 490900 491300 491700 492100 492500 492900 493300 493700 494100 494500 494900 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