Soil series profile
Bradyville soil series
Bradyville is a well drained soil with a silt loam surface, mapped on 98,101 acres in 16 counties in TN. Hydrologic group C.
- Drainage class
- Well drained >99% of mapped acres
- Hydrologic group
- C >99% of mapped acres
- Typical topsoil pH
- 5.8 moderately acidic · range 5.8–5.8
- Mapped area
- 98k acres in 16 counties, 1 state
Typical Bradyville profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–6 in (Ap) | Silt loam | 5.8 | 23% | 7% | 1.45% |
| 6–19 in (Bt1) | Silty clay loam | 5.6 | 37% | 9% | 0.4% |
| 19–48 in (Bt2) | Clay | 6.5 | 66% | 5% | 0.4% |
| 48–58 in (R) | Bedrock | Not reported | Not reported | Not reported | Not reported |
What this means
What Bradyville soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Bradyville soils is moderately acidic: pH 5.8. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.
Loamy topsoil (loam, silt loam and similar) covers >99% of mapped Bradyville acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (93% of mapped Bradyville acres).
>99% of mapped Bradyville acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
On >99% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
For a septic system
For conventional septic absorption fields, NRCS rates >99% of the acres in mapped Bradyville soils very limited, 0% somewhat limited and 0% not limited.
Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Bradyville soil is found
Mapped acres
Bradyville is mapped in Tennessee.
| County | Acres | Share of county land |
|---|---|---|
| Rutherford County, TN | 36,606 | 9.3% |
| Wilson County, TN | 19,853 | 5.4% |
| Bedford County, TN | 16,893 | 5.6% |
| Sullivan County, TN | 5,439 | 2.1% |
| Grainger County, TN | 5,364 | 3.0% |
| Marshall County, TN | 3,623 | 1.5% |
| Maury County, TN | 2,648 | 0.7% |
| Washington County, TN | 1,663 | 0.8% |
| McMinn County, TN | 1,355 | 0.5% |
| Smith County, TN | 1,151 | 0.6% |
| Williamson County, TN | 1,065 | 0.3% |
| Davidson County, TN | 969 | 0.3% |
| Trousdale County, TN | 681 | 0.9% |
| Cannon County, TN | 616 | 0.4% |
| Roane County, TN | 151 | 0.1% |
| Knox County, TN | 25 | 0.0% |
Septic absorption fields
NRCS rating, share of Bradyville acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 99.4% |
| Not rated | 0.6% |
Drainage, water table and flooding
Share of Bradyville acres
- Depth to seasonal high water table
- None reported within about 6.5 feet (median where reported).
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 4–15% (median 4%).
- Topsoil organic matter
- Median 1.4%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 99.4% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
| Not rated | 0.6% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 99.4% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 0.0% |
| Not rated | 0.6% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Bradyville (component kind "Series") in SSURGO: 98,101 acres.
- Method
- Shares are by mapped acres of Bradyville components. The profile comes from the single largest Bradyville component. Full methodology.