Marshall County, Tennessee

Survey Area TN117 Tennessee

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Marshall County, Tennessee.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Talbott-Rock outcrop complex, 2 to 15 percent slopes 37K Well drainedDVery limitedVery limited
Hawthorne and Dellrose association, 25 to 55 percent slopes 20K Somewhat excessively drainedBVery limitedVery limited
Talbott silt loam, 2 to 5 percent slopes, eroded 11K Well drainedDVery limitedVery limited
Braxton silt loam, 2 to 5 percent slopes, eroded 10K Well drainedCSomewhat limitedVery limited
Braxton-Talbott-Rock outcrop complex, 2 to 12 percent slopes, eroded 9K Well drainedCSomewhat limitedVery limited
Barfield-Ashwood-Rock outcrop complex, 5 to 20 percent slopes 9K Well drainedDVery limitedVery limited
Armour silt loam, 2 to 5 percent slopes 8K Well drainedBNot limitedVery limited
Gladeville-Rock outcrop complex, 2 to 15 percent slopes, extremely stony 8K Well drainedDVery limitedVery limited
Barfield-Ashwood-Rock outcrop complex, 20 to 50 percent slopes 7K Well drainedDVery limitedVery limited
Ashwood-Mimosa-Rock outcrop complex, 15 to 45 percent slopes 7K Well drainedDVery limitedVery limited
Capshaw silt loam, 2 to 5 percent slopes 7K Moderately well drainedDVery limitedVery limited
Harpeth silt loam, 2 to 5 percent slopes 7K Well drainedBNot limitedSomewhat limited
Mimosa gravelly silt loam, 20 to 35 percent slopes, eroded 6K Well drainedCVery limitedVery limited
Ashwood-Mimosa-Rock outcrop complex, 5 to 15 percent slopes 6K Well drainedDVery limitedVery limited
Egam silt loam, frequently flooded 5K Well drainedCVery limitedVery limited
Marsh-Stiversville complex, 15 to 35 percent slopes, severely eroded 5K Well drainedBVery limitedVery limited
Mimosa silt loam, 5 to 12 percent slopes, eroded 5K Well drainedCSomewhat limitedVery limited
Hawthorne gravelly silt loam, 5 to 15 percent slopes 5K Somewhat excessively drainedBSomewhat limitedVery limited
Arrington silt loam, 0 to 2 percent slopes, frequently flooded 4K Well drainedBVery limitedVery limited
Talbott silt loam, 5 to 12 percent slopes, eroded 4K Well drainedDVery limitedVery limited

What This Means

Building & Foundations

About 75% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 96% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.

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