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HomeMy WebLinkAboutLocal Roads and Streets (13067)Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 1 of 95058600505900050594005059800506020050606005061000506140050586005059000505940050598005060200506060050610005061400490500490900491300491700492100492500492900493300493700494100494500494900 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. Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 2 of 9 Local Roads and Streets Local Roads and Streets— 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 Somewhat limited Blackdog (90%)Frost action (0.50) 221.5 10.6% Meagher (4%)Frost action (0.50) Quagle (3%)Frost action (0.50) Bowery (3%)Frost action (0.50) 53B Amsterdam silt loam, 0 to 4 percent slopes Somewhat limited Amsterdam (85%) Frost action (0.50) 530.9 25.5% Quagle (5%)Frost action (0.50) Blackdog (5%)Frost action (0.50) Bowery (3%)Frost action (0.50) Meagher (2%)Frost action (0.50) 64B Straw loam, 0 to 4 percent slopes Somewhat limited Straw (90%)Frost action (0.50) 0.4 0.0% Shrink-swell (0.10) Sudworth (3%)Frost action (0.50) Flooding (0.40) Straw (2%)Frost action (0.50) Shrink-swell (0.10) 448A Hyalite- Beaverton complex, moderately wet, 0 to 2 percent slopes Somewhat limited Hyalite (70%)Frost action (0.50) 118.1 5.7% Large stones (0.02) Beaverton (20%)Frost action (0.50) Large stones (0.20) Beaverton (5%)Frost action (0.50) Large stones (0.21) Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 3 of 9 Local Roads and Streets— 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 451C Quagle-Brodyk silt loams, 4 to 8 percent slopes Somewhat limited Quagle (70%)Frost action (0.50) 19.8 1.0% Brodyk (20%)Frost action (0.50) Amsterdam (8%)Frost action (0.50) Anceney (2%)Frost action (0.50) Large stones (0.01) 453B Amsterdam- Quagle silt loams, 0 to 4 percent slopes Somewhat limited Amsterdam (60%) Frost action (0.50) 56.2 2.7% Quagle (30%)Frost action (0.50) Beanlake (6%)Frost action (0.50) Meagher (4%)Frost action (0.50) 453C Amsterdam- Quagle silt loams, 4 to 8 percent slopes Somewhat limited Amsterdam (60%) Frost action (0.50) 20.1 1.0% Quagle (30%)Frost action (0.50) Beanlake (4%)Frost action (0.50) Meagher (3%)Frost action (0.50) Bowery (3%)Frost action (0.50) 457A Turner loam, moderately wet, 0 to 2 percent slopes Somewhat limited Turner (85%)Frost action (0.50) 439.2 21.1% Shrink-swell (0.00) Beaverton (5%)Frost action (0.50) Large stones (0.20) Turner (5%)Frost action (0.50) Shrink-swell (0.00) Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 4 of 9 Local Roads and Streets— 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 509B Enbar loam, 0 to 4 percent slopes Very limited Enbar (85%)Frost action (1.00) 148.0 7.1% Flooding (0.40) Nythar (10%)Depth to saturated zone (1.00) Frost action (1.00) Shrink-swell (0.50) Flooding (0.40) 510B Meadowcreek loam, 0 to 4 percent slopes Very limited Meadowcreek (85%) Frost action (1.00) 253.2 12.1% Blossberg (10%)Frost action (1.00) Depth to saturated zone (0.75) 511A Fairway silt loam, 0 to 2 percent slopes Very limited Fairway (85%)Frost action (1.00) 17.2 0.8% Low strength (0.22) Blossberg (10%)Frost action (1.00) Depth to saturated zone (0.75) Meadowcreek (5%) Frost action (1.00) 537A Lamoose silt loam, 0 to 2 percent slopes Very limited Lamoose (85%)Frost action (1.00) 104.5 5.0% Depth to saturated zone (0.75) Bonebasin (10%)Depth to saturated zone (1.00) Frost action (1.00) Flooding (0.40) Meadowcreek (5%) Frost action (1.00) Flooding (0.40) Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 5 of 9 Local Roads and Streets— 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 542A Blossberg loam, 0 to 2 percent slopes Very limited Blossberg (85%)Frost action (1.00) 78.2 3.7% Depth to saturated zone (0.75) Bonebasin (10%)Depth to saturated zone (1.00) Frost action (1.00) Flooding (0.40) Meadowcreek (5%) Frost action (1.00) 556A Threeriv- Bonebasin loams, 0 to 2 percent slopes Very limited Threeriv (45%)Depth to saturated zone (1.00) 10.8 0.5% Frost action (1.00) Flooding (0.40) Bonebasin (45%)Depth to saturated zone (1.00) Frost action (1.00) Flooding (0.40) Threeriv (5%)Depth to saturated zone (1.00) Frost action (1.00) Flooding (0.40) Blossberg (5%)Frost action (1.00) Depth to saturated zone (0.75) Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 6 of 9 Local Roads and Streets— 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 748A Hyalite- Beaverton complex, 0 to 4 percent slopes Somewhat limited Hyalite (70%)Frost action (0.50) 67.2 3.2% Large stones (0.02) Beaverton (20%)Frost action (0.50) Large stones (0.20) Turner (5%)Frost action (0.50) Shrink-swell (0.00) Hyalite (5%)Frost action (0.50) Large stones (0.02) Totals for Area of Interest 2,085.2 100.0% Local Roads and Streets— Summary by Rating Value Rating Acres in AOI Percent of AOI Somewhat limited 1,473.4 70.7% Very limited 611.8 29.3% Totals for Area of Interest 2,085.2 100.0% Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 7 of 9 Description 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. 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 Component Percent Cutoff: None Specified Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 8 of 9 Tie-break Rule: Higher Local Roads and Streets—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 9 of 9