Bryan County, Oklahoma

Survey Area OK013• Oklahoma

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. 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 Bryan County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Durant loam, 1 to 3 percent slopes	50K	Moderately well drained	D	Very limited	Very limited
Dennis loam, 1 to 3 percent slopes	28K	Somewhat poorly drained	C/D	Very limited	Very limited
Bernow fine sandy loam, 8 to 12 percent slopes	28K	Well drained	B	Somewhat limited	Somewhat limited
Water	26K		D	Not rated	Not rated
Crockett-Durant complex, 1 to 5 percent slopes, eroded	24K	Moderately well drained	D	Very limited	Very limited
Burleson clay, 1 to 3 percent slopes	20K	Moderately well drained	D	Very limited	Very limited
Ferris-Tarrant complex, 8 to 20 percent slopes	18K	Well drained	D	Very limited	Very limited
Verdigris silty clay loam, 0 to 1 percent slopes, occasionally flooded	17K	Well drained	B	Very limited	Very limited
Muskogee silt loam, 1 to 3 percent slopes	17K	Moderately well drained	C	Very limited	Very limited
Bernow fine sandy loam, 3 to 5 percent slopes	17K	Well drained	B	Not limited	Somewhat limited
Dennis loam, 3 to 5 percent slopes	14K	Somewhat poorly drained	C/D	Very limited	Very limited
Durant-Verdigris complex, 0 to 5 percent slopes	14K	Moderately well drained	D	Very limited	Very limited
Bernow-Romia complex, 3 to 8 percent slopes	14K	Well drained	B	Somewhat limited	Somewhat limited
Gowton loam, 0 to 1 percent slopes, occasionally flooded	14K	Well drained	B	Very limited	Very limited
Bernow-Romia complex, 8 to 20 percent slopes	13K	Well drained	B	Somewhat limited	Somewhat limited
Boxville fine sandy loam, 3 to 8 percent slopes	13K	Well drained	C	Very limited	Very limited
Fitzhugh-Bates complex, 1 to 5 percent slopes, eroded	11K	Well drained	B	Not limited	Somewhat limited
Bernow-Bosville complex, 3 to 5 percent slopes, eroded	11K	Well drained	B	Somewhat limited	Somewhat limited
Parsons silt loam, 0 to 1 percent slopes	10K	Somewhat poorly drained	D	Very limited	Very limited
Kaufman clay, 0 to 1 percent slopes, occasionally flooded	10K	Moderately well drained	D	Very limited	Very limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Vertisols

High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 67% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 67% 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.