Iron County, UT Shrink-Swell Risk

Iron County's SSURGO shrink-swell reading

Low

In Iron County, UT, 57.9% of the surveyed soil carries a "Low" shrink-swell rating, 2.85% 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

Iron 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 Iron County will actually do.

Budgeting for Iron County, UT

Iron 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, Iron County, UT ranks 1,312 most-constrained nationally, and 3 of 29 within Utah. Iron County, UT is 3,296 square miles with a population of 65,936.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Harding County, SD and Wake County, NC 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 Utah

Every county in Utah is on this site, including Millard County, UT and Juab County, UT. The full underlying dataset is downloadable directly, one row per county.