Foundation Conditions in North Texas

How the soils around 12 North Texas cities compare, from heavy clay to thin soil over rock.

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This region groups cities in and around the northern Blackland country and the Cross Timbers, from the Red River cities of Sherman, Denison and Gainesville south through the Dallas-Fort Worth edge to Cleburne, Weatherford and Stephenville.

It contains some of the most clay-heavy soils profiled on this site, around McKinney and Waxahachie, and some of the lightest, around Stephenville and Weatherford. A bedrock or hardpan layer within three feet of the surface is mapped at many sampled points, which makes how piers are installed and tested a practical question as well as soil moisture.

Across the 12 North Texas cities profiled here, the soil survey rates shrink-swell high around 7, moderate around 3 and low around 2.

North Texas Cities Compared

Measured soil conditions around each city center (USDA NRCS soil survey); select a city for its own page
City	County	Most-mapped soil	Shrink-swell (mean LE)	Bedrock/hardpan within 3 ft
Cleburne	Johnson County	Ponder	high (5.7%)	yes
Corsicana	Navarro County	Crockett	high (6.9%)	no
Denison	Grayson County	Callisburg	high (6.2%)	no
Denton	Denton County	Gasil	moderate (4.5%)	yes
Ennis	Ellis County	Wilson	high (6.8%)	no
Gainesville	Cooke County	Tinn	high (7.7%)	yes
McKinney	Collin County	Houston Black	high (8.9%)	yes
Mineral Wells	Palo Pinto County	Bonti	moderate (3.8%)	yes
Sherman	Grayson County	Whitewright	moderate (5.4%)	yes
Stephenville	Erath County	Windthorst	low (2.4%)	yes
Waxahachie	Ellis County	Austin	high (7.1%)	yes
Weatherford	Parker County	Windthorst	low (2.7%)	yes

Where shrink-swell is high, moisture management around the foundation is central. Where rock is shallow, the depth and verification of piers is. Many cities here have both, so any evaluation should address both.

Each city name above opens its own page with measured values and sample counts.

Contractors Serving North Texas

Frequently Asked Questions

Why do North Texas cities vary so much?

The region crosses clay-rich prairie soils and sandier, rockier Cross Timbers ground, so the cities in the table range from high to low shrink-swell.

Does shallow rock matter for a foundation repair?

It can. A hard layer near the surface affects how deep piers can go and whether drilling is needed, so ask how bearing depth will be confirmed.

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