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HomeMy WebLinkAboutCorrosion of Concrete (13067)Corrosion of Concrete—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 1 of 45058600505900050594005059800506020050606005061000506140050586005059000505940050598005060200506060050610005061400490500490900491300491700492100492500492900493300493700494100494500494900 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 High Moderate Low Not rated or not available Soil Rating Lines High Moderate Low Not rated or not available Soil Rating Points High Moderate Low 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. Corrosion of Concrete—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 2 of 4 Corrosion of Concrete Corrosion of Concrete— Summary by Map Unit — Gallatin County Area, Montana (MT622) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 50B Blackdog silt loam, 0 to 4 percent slopes Low 221.5 10.6% 53B Amsterdam silt loam, 0 to 4 percent slopes Low 530.9 25.5% 64B Straw loam, 0 to 4 percent slopes Low 0.4 0.0% 448A Hyalite-Beaverton complex, moderately wet, 0 to 2 percent slopes Low 118.1 5.7% 451C Quagle-Brodyk silt loams, 4 to 8 percent slopes Low 19.8 1.0% 453B Amsterdam-Quagle silt loams, 0 to 4 percent slopes Low 56.2 2.7% 453C Amsterdam-Quagle silt loams, 4 to 8 percent slopes Low 20.1 1.0% 457A Turner loam, moderately wet, 0 to 2 percent slopes Low 439.2 21.1% 509B Enbar loam, 0 to 4 percent slopes Low 148.0 7.1% 510B Meadowcreek loam, 0 to 4 percent slopes Moderate 253.2 12.1% 511A Fairway silt loam, 0 to 2 percent slopes Low 17.2 0.8% 537A Lamoose silt loam, 0 to 2 percent slopes Low 104.5 5.0% 542A Blossberg loam, 0 to 2 percent slopes Moderate 78.2 3.7% 556A Threeriv-Bonebasin loams, 0 to 2 percent slopes Moderate 10.8 0.5% 748A Hyalite-Beaverton complex, 0 to 4 percent slopes Low 67.2 3.2% Totals for Area of Interest 2,085.2 100.0% Corrosion of Concrete—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 3 of 4 Description "Risk of corrosion" pertains to potential soil-induced electrochemical or chemical action that corrodes or weakens concrete. The rate of corrosion of concrete is based mainly on the sulfate and sodium content, texture, moisture content, and acidity of the soil. Special site examination and design may be needed if the combination of factors results in a severe hazard of corrosion. The concrete in installations that intersect soil boundaries or soil layers is more susceptible to corrosion than the concrete in installations that are entirely within one kind of soil or within one soil layer. The risk of corrosion is expressed as "low," "moderate," or "high." Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Corrosion of Concrete—Gallatin County Area, Montana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/21/2014 Page 4 of 4