HomeSoil seriesFrelsburg
Frelsburg soil series
Frelsburg soils cover 216,168 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 93% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 8 of the counties and cities on this site, including Washington County, TX; Fayette County, TX; Grimes County, TX.
SSURGO survey versions to August 5, 2026 · series description revised 2014-09
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Frelsburg series consists of very deep, moderately well drained soils that formed in calcareous clayey residuum of Tertiary Age derived from shale. These very gently to moderately sloping soils are on ridges of inland dissected coastal plains. Slope ranges from 1 to 8 percent. Mean annual precipitation is about 1066 mm (42 in) and the mean annual air temperature is about 20.4 degrees C (69 degrees F).
Vertic features, from the same description: "presence of slickensides at 51 to 203 cm (20 to 80 in) (Bkss1, Bkss2, Bkss3, Bkss4, and BCkss horizons)"
Source: USDA NRCS series description (OSD) for Frelsburg, revised 2014-09. Read it.
Engineering properties
| Mapped area (SSURGO) | 216,168 acres |
| Shrink-swell limits houses without basements | 93.3% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 93.3% |
| Most common drainage class | Moderately well drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine, smectitic, thermic Udic Calciusterts |
| Type location | Lavaca County, Texas |
Where Frelsburg is mapped
| State | Mapped acres |
|---|---|
| Texas | 216,168 |
Places where Frelsburg leads
Counties and cities where Frelsburg covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Burton, TX | 43% |
| Fayetteville, TX | 35% |
| Anderson, TX | 35% |
| Schulenburg, TX | 28% |
| Weimar, TX | 28% |
| Washington County, TX | 12% |
| Fayette County, TX | 9% |
| Grimes County, TX | 6% |
Other places where Frelsburg is a main soil
Counties and cities where Frelsburg is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.
Counties
Texas and Ohio cities
- Moulton, TX 22%
- Brenham, TX 16%
- Plantersville, TX 11%
- Bellville, TX 9%
- Navasota, TX 7%
- Shiner, TX 5%
Sources
Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.