Uintah County, UT Shrink-Swell Risk
What Uintah County, UT's soil means for a foundation
Low
USDA's SSURGO data puts Uintah County, UT's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.54% across 72.3% of the county's surveyed land. 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.
This is a county figure, not a lot figure
USDA's survey covers the whole of Uintah County, UT at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Uintah County will actually do.
Report cost vs. repair cost
With Uintah County, UT rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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
Nationally, Uintah County, UT is the 1,524-most-constrained of 3,085 rated counties for shrink-swell soil. Within Utah alone it ranks 11 of 29. Uintah County, UT is 4,483 square miles with a population of 38,307.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Lawrence County, AR and Custer 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
More of Utah
Every county in Utah is on this site, including Emery County, UT and Wasatch County, UT. The full underlying dataset is downloadable directly, one row per county.