Nelson County, Kentucky
The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Nelson County, Kentucky.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Lowell-Faywood silt loams, 6 to 12 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Pembroke silt loam, 2 to 6 percent slopes | 17K | Well drained | B | Not limited | Somewhat limited |
| Rockcastle-Weikert complex, 20 to 50 percent slopes | 14K | Somewhat excessively drained | D | Very limited | Very limited |
| Lowell-Sandview silt loams, 2 to 6 percent slopes | 10K | Well drained | C | Very limited | Very limited |
| Huntington silt loam, 0 to 4 percent slopes | 10K | Well drained | B | Very limited | Very limited |
| Shelbyville silt loam, 2 to 6 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Colyer shaly silt loam, 20 to 50 percent slopes | 9K | Well drained | D | Very limited | Very limited |
| Rock land-Corydon complex (rock outcrop, corydon) | 9K | Very limited | Very limited | ||
| Eden silty clay, 12 to 30 percent slopes, severely eroded | 9K | Well drained | D | Very limited | Very limited |
| Rockcastle silt loam, 20 to 50 percent slopes | 7K | Somewhat excessively drained | D | Very limited | Very limited |
| Lawrence silt loam | 6K | Somewhat poorly drained | D | Very limited | Very limited |
| Nicholson silt loam, 2 to 6 percent slopes | 6K | Moderately well drained | C | Very limited | Very limited |
| Fairmount flaggy clay, 20 to 50 percent slopes, severely eroded | 6K | Well drained | D | Very limited | Very limited |
| Bedford silt loam, 2 to 6 percent slopes | 6K | Moderately well drained | C/D | Very limited | Very limited |
| Shrouts-Otway complex, 12 to 30 percent slopes | 5K | Well drained | D | Very limited | Very limited |
| Newark silt loam, 0 to 2 percent slopes, frequently flooded | 5K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Trappist silt loam, 6 to 12 percent slopes, eroded | 5K | Well drained | C | Very limited | Very limited |
| Beasley silt loam, 6 to 12 percent slopes, eroded | 5K | Well drained | C | Somewhat limited | Very limited |
| Fairmount flaggy clay, 6 to 20 percent slopes, severely eroded | 5K | Well drained | D | Very limited | Very limited |
| Lowell silty clay loam, 6 to 12 percent slopes, severely eroded | 4K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 79% 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 90% 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.