Dallas County, MO Shrink-Swell Risk

Dallas County's SSURGO shrink-swell reading

Low

In Dallas County, MO, 57.9% of the surveyed soil carries a "Low" shrink-swell rating, 2.98% 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

Dallas 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 Dallas County will actually do.

Budgeting for Dallas County, MO

Dallas 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.

How Dallas County, MO compares

Among the 3,085 rated counties on this site, Dallas County, MO ranks 1,209 most-constrained nationally, and 78 of 114 within Missouri. The county spans 541 square miles, home to 17,877 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Ascension Parish, LA and Cleveland County, OK 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 Missouri

Every county in Missouri is on this site, including Putnam County, MO and Butler County, MO. The full underlying dataset is downloadable directly, one row per county.