HomeSoil seriesBrackett
Brackett soil series
Brackett soils cover 1,190,515 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 0% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 22 of the counties and cities on this site, including Lampasas County, TX; Blanco County, TX; Kendall County, TX.
SSURGO survey versions to August 5, 2026 · series description revised 2010-07
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 Brackett series consists of shallow to paralithic bedrock, well drained soils formed in residuum weathered from limestone of Cretaceous age, mainly from the Glen Rose formation. These nearly level to very steep soils are located on backslopes of ridges on dissected plateaus of the Edwards Plateau. Slopes are1 to 60 percent. Mean annual air temperature is about 19 degrees C (67 degrees F), and mean annual precipitation is about 737 mm (29 in).
Source: USDA NRCS series description (OSD) for Brackett, revised 2010-07. Read it.
Engineering properties
| Mapped area (SSURGO) | 1,190,515 acres |
| Shrink-swell limits houses without basements | 0.0% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 88.0% |
| Most common drainage class | Well drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Loamy, carbonatic, thermic, shallow Typic Haplustepts |
| Type location | Hays County, Texas |
Where Brackett is mapped
| State | Mapped acres |
|---|---|
| Texas | 1,186,276 |
| Oklahoma | 4,239 |
Places where Brackett leads
Counties and cities where Brackett covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Kempner, TX | 66% |
| Lago Vista, TX | 46% |
| Bear Creek, TX | 45% |
| Bee Cave, TX | 45% |
| Lakeway, TX | 44% |
| Briarcliff, TX | 43% |
| Lampasas County, TX | 39% |
| Round Mountain, TX | 38% |
| The Hills, TX | 38% |
| Lampasas, TX | 32% |
| West Lake Hills, TX | 32% |
| Blanco County, TX | 28% |
| Hudson Oaks, TX | 25% |
| Bulverde, TX | 24% |
| Kendall County, TX | 23% |
| Harker Heights, TX | 22% |
| Wimberley, TX | 22% |
| Blanco, TX | 21% |
| Burnet County, TX | 20% |
| Dripping Springs, TX | 19% |
| Travis County, TX | 16% |
| Annetta North, TX | 14% |
Other places where Brackett is a main soil
Counties and cities where Brackett is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.
Counties
- Comal County, TX 13%
- Hays County, TX 12%
- Hamilton County, TX 8%
- Mills County, TX 7%
- Gillespie County, TX 7%
- Bexar County, TX 6%
- Parker County, TX 5%
- Somervell County, TX 5%
Texas and Ohio cities
- Jonestown, TX 27%
- Grey Forest, TX 23%
- Rollingwood, TX 23%
- Volente, TX 23%
- Point Venture, TX 20%
- Annetta, TX 16%
- Lometa, TX 15%
- Burnet, TX 14%
- Boerne, TX 13%
- Willow Park, TX 13%
- Woodcreek, TX 13%
- Leander, TX 12%
- Annetta South, TX 11%
- Blanket, TX 10%
- Cranfills Gap, TX 10%
- Aledo, TX 10%
- Goldthwaite, TX 10%
- Castle Hills, TX 9%
- Nolanville, TX 9%
- Fair Oaks Ranch, TX 9%
- Bertram, TX 8%
- Cresson, TX 8%
- Weatherford, TX 7%
- Austin, TX 7%
- Spring Branch, TX 7%
- Menard, TX 6%
- Stockton Bend, TX 6%
- Killeen, TX 6%
- Liberty Hill, TX 5%
- Copperas Cove, TX 5%
- Lakeside (Tarrant County), TX 5%
- Mullin, TX 5%
- Salado, TX 5%
- Cedar Park, TX 5%
- San Leanna, TX 4%
- Terrell Hills, TX 4%
- Alamo Heights, TX 4%
- Hill Country Village, TX 3%
- Junction, TX 2%
- Olmos Park, TX 2%
- Evant, TX 2%
- Hollywood Park, TX under 1%
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.