Delaware County, OK Shrink-Swell Risk

Delaware County's SSURGO shrink-swell reading

Low

In Delaware County, OK, 92% of the surveyed soil carries a "Low" shrink-swell rating, 1.36% linear extensibility on average. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

Before you rely on this for one address

Delaware County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Delaware County will actually do.

Budgeting for Delaware County, OK

Delaware County's soil reading points toward standard foundation practice as the likely outcome, not the exception. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.

Where this sits nationally

Among the 3,085 rated counties on this site, Delaware County, OK ranks 2,653 most-constrained nationally, and 77 of 77 within Oklahoma. Delaware County, OK is 738 square miles with a population of 41,771.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Darlington County, SC and Jefferson County, AR are worth a look for comparison.

How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil

Elsewhere in Oklahoma

Every county in Oklahoma is on this site, including Cotton County, OK and Stephens County, OK. The full underlying dataset is downloadable directly, one row per county.