Lincoln 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 Lincoln County, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Dellrose gravelly silt loam, 20 to 45 percent slopes, eroded | 35K | Well drained | B | Very limited | Very limited |
| Hawthorne gravelly silt loam, 15 to 50 percent slopes | 31K | Somewhat excessively drained | B | Very limited | Very limited |
| Barfield-Ashwood-Rock outcrop complex, 20 to 50 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Barfield-Ashwood-Rock outcrop complex, 5 to 20 percent slopes | 27K | Well drained | D | Very limited | Very limited |
| Dickson silt loam, 2 to 5 percent slopes | 26K | Moderately well drained | C/D | Very limited | Very limited |
| Mimosa silt loam, 5 to 12 percent slopes, eroded | 18K | Well drained | C | Somewhat limited | Very limited |
| Arrington silt loam, 0 to 2 percent slopes, frequently flooded | 17K | Well drained | B | Very limited | Very limited |
| Barfield-Gladdice-Rock outcrop complex, 30 to 70 percent slopes | 15K | Well drained | D | Very limited | Very limited |
| Mountview silt loam, 2 to 5 percent slopes | 14K | Moderately well drained | C | Very limited | Very limited |
| Taft silt loam, 0 to 2 percent slopes | 14K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Armour silt loam, 2 to 5 percent slopes | 12K | Well drained | B | Not limited | Very limited |
| Guthrie silt loam, 0 to 2 percent slopes, frequently ponded | 11K | Poorly drained | C/D | Very limited | Very limited |
| Hawthorne gravelly silt loam, 5 to 15 percent slopes | 10K | Somewhat excessively drained | B | Somewhat limited | Very limited |
| Mimosa silt loam, 12 to 20 percent slopes, eroded | 8K | Well drained | C | Very limited | Very limited |
| Mimosa-Rock outcrop complex, 20 to 40 percent slopes | 8K | Well drained | C | Very limited | Very limited |
| Ironcity gravelly silt loam, 2 to 5 percent slopes | 7K | Well drained | B | Not limited | Somewhat limited |
| Mimosa silt loam, 20 to 35 percent slopes, eroded | 7K | Well drained | C | Very limited | Very limited |
| Ironcity gravelly silt loam, 5 to 12 percent slopes | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Egam silt loam, frequently flooded | 7K | Well drained | C | Very limited | Very limited |
| Sengtown gravelly silt loam, 5 to 12 percent slopes | 6K | Well drained | B | Not limited | Somewhat limited |
What This Means
Building & Foundations
About 80% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 93% 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.