Robertson County, Tennessee
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Robertson County, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Sengtown gravelly silt loam, 5 to 12 percent slopes | 46K | Well drained | B | Not limited | Somewhat limited |
| Sengtown gravelly silt loam, 12 to 20 percent slopes | 28K | Well drained | B | Very limited | Very limited |
| Dickson silt loam, 2 to 5 percent slopes | 27K | Moderately well drained | C/D | Very limited | Very limited |
| Pembroke silt loam, 2 to 6 percent slopes | 22K | Well drained | B | Somewhat limited | Somewhat limited |
| Mountview silt loam, 2 to 5 percent slopes | 19K | Moderately well drained | C | Very limited | Very limited |
| Staser silt loam | 18K | Well drained | B | Very limited | Very limited |
| Pembroke silt loam, 6 to 12 percent slopes, eroded | 16K | Well drained | B | Somewhat limited | Somewhat limited |
| Hamblen silt loam | 12K | Moderately well drained | C | Very limited | Very limited |
| Crider silt loam, 2 to 6 percent slopes | 12K | Well drained | B | Somewhat limited | Somewhat limited |
| Mountview silt loam, 5 to 12 percent slopes | 12K | Moderately well drained | C | Very limited | Very limited |
| Bodine gravelly silt loam, 20 to 40 percent slopes | 10K | Somewhat excessively drained | A | Very limited | Very limited |
| Pickwick silty clay loam, 5 to 12 percent slopes, severely eroded | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Baxter cherty silty clay loam, 12 to 20 percent slopes, severely eroded | 7K | Well drained | B | Very limited | Very limited |
| Baxter cherty silty clay loam, 5 to 12 percent slopes severely eroded | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Sango silt loam, 0 to 2 percent slopes | 6K | Moderately well drained | C/D | Very limited | Very limited |
| Dewey silty clay loam, 5 to 12 percent slopes, severely eroded | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Guthrie silt loam, 0 to 2 percent slopes, frequently ponded | 5K | Poorly drained | C/D | Very limited | Very limited |
| Taft silt loam, 0 to 2 percent slopes | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Baxter cherty silt loam, 20 to 30 percent slopes | 4K | Well drained | B | Very limited | Very limited |
| Bodine gravelly silt loam, 12 to 20 percent slopes | 3K | Somewhat excessively drained | A | Very limited | Very limited |
What This Means
Building & Foundations
About 57% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 57% 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.