Gibson County, Indiana
The dominant drainage class is Well drained and the dominant hydrologic group is C/D (varies with drainage). 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 Gibson County, Indiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Hosmer silt loam, 2 to 5 percent slopes, eroded | 19K | Moderately well drained | C/D | Very limited | Very limited |
| Alford silt loam, 2 to 5 percent slopes, eroded | 18K | Well drained | B | Not limited | Somewhat limited |
| Vincennes loam | 16K | Poorly drained | C/D | Very limited | Very limited |
| Hosmer silt loam, 5 to 10 percent slopes, severely eroded | 14K | Moderately well drained | C | Very limited | Very limited |
| Swanwick variant silt loam, 1 to 15 percent slopes | 14K | Well drained | C | Somewhat limited | Very limited |
| Alford silt loam, 5 to 10 percent slopes, severely eroded | 13K | Well drained | B | Not limited | Somewhat limited |
| Uniontown silt loam, 2 to 6 percent slopes, eroded | 12K | Well drained | C | Somewhat limited | Very limited |
| Ragsdale silt loam | 12K | Poorly drained | B/D | Very limited | Very limited |
| Stendal silt loam, frequently flooded | 11K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Wakeland silt loam, 0 to 2 percent slopes, frequently flooded | 10K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Water | 9K | Not rated | Not rated | ||
| Nolin silt loam, frequently flooded | 8K | Well drained | B | Very limited | Very limited |
| Zipp silty clay, 0 to 2 percent slopes | 7K | Poorly drained | C/D | Very limited | Very limited |
| Reesville silt loam, 0 to 2 percent slopes | 7K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Vincennes silt loam, frequently flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
| Birds silt loam, 0 to 2 percent slopes, frequently flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
| Uniontown silt loam, 0 to 2 percent slopes | 6K | Moderately well drained | C | Very limited | Very limited |
| Bonnie silt loam, 0 to 2 percent slopes, frequently flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
| Bloomfield sand, 2 to 6 percent slopes | 5K | Somewhat excessively drained | A | Not limited | Very limited |
| Ragsdale silt loam, overwash | 5K | Poorly drained | B/D | Very limited | Very limited |
What This Means
Building & Foundations
About 64% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 80% 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
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.