Creek County, Oklahoma

Survey Area OK037• Oklahoma

The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Creek 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
Niotaze-Bigheart-Rock outcrop complex, 3 to 15 percent slopes, very stony	113K	Somewhat poorly drained	D	Very limited	Very limited
Bigheart-Niotaze-Rock outcrop complex, 1 to 8 percent slopes	78K	Well drained	D	Very limited	Very limited
Bartlesville-Bigheart complex, 1 to 5 percent slopes, very rocky	54K	Moderately well drained	C	Very limited	Very limited
Niotaze-Bigheart-Rock outcrop complex, 15 to 25 percent slopes, extremely stony	49K	Somewhat poorly drained	D	Very limited	Very limited
Collinsville and Talihina soils, 5 to 12 percent slopes	40K	Somewhat excessively drained	D	Very limited	Very limited
Dennis and Okemah silt loams, 1 to 3 percent slopes	36K	Somewhat poorly drained	C/D	Very limited	Very limited
Ashport silt loam, 0 to 1 percent slopes, frequently flooded	22K	Well drained	B	Very limited	Very limited
Collinsville and Talihina soils, 12 to 20 percent slopes	19K	Somewhat excessively drained	D	Very limited	Very limited
Dale silt loam, 0 to 1 percent slopes, rarely flooded	19K	Well drained	B	Very limited	Somewhat limited
Port silt loam, 0 to 1 percent slopes, occasionally flooded	19K	Well drained	B	Very limited	Very limited
Bartlesville-Bigheart complex, 1 to 8 percent slopes, severely eroded	16K	Moderately well drained	C	Very limited	Very limited
Pulaski fine sandy loam, 0 to 1 percent slopes, occasionally flooded	14K	Well drained	A	Very limited	Very limited
Dennis and Okemah silt loams, 3 to 5 percent slopes	12K	Somewhat poorly drained	C/D	Very limited	Very limited
Water	10K		D	Not rated	Not rated
Coyle fine sandy loam, 1 to 3 percent slopes	9K	Well drained	C	Somewhat limited	Very limited
Port fine sandy loam, 0 to 1 percent slopes, occasionally flooded	8K	Well drained	B	Very limited	Very limited
Konawa and Gasil soils, 5 to 8 percent slopes	8K	Well drained	B	Not limited	Very limited
Niotaze-Bigheart-Rock outcrop complex, 25 to 45 percent slopes, rubbly	7K	Somewhat poorly drained	D	Very limited	Very limited
Collinsville and Coweta soils, 1 to 3 percent slopes	7K	Somewhat excessively drained	D	Very limited	Very limited
Konawa-Gullied land complex, 3 to 8 percent slopes	7K	Well drained	B	Not 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.

Mollisols

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

Alfisols

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

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

What This Means

Building & Foundations

About 93% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 94% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.