Salt Lake County, UT Shrink-Swell Risk
Salt Lake County's SSURGO shrink-swell reading
Low
In Salt Lake County, UT, 54.1% of the surveyed soil carries a "Low" shrink-swell rating, 2.8% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Salt Lake County's reading is an average across the whole county, not a promise about any one lot inside it. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Salt Lake County.
Budgeting for Salt Lake County, UT
Salt Lake 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.
Salt Lake County's rank among Utah counties
Among the 3,085 rated counties on this site, Salt Lake County, UT ranks 1,343 most-constrained nationally, and 4 of 29 within Utah. Salt Lake County, UT is 753 square miles with a population of 1,216,274.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Garza County, TX and Red Lake County, MN 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 Utah County, UT and Davis County, UT. The full underlying dataset is downloadable directly, one row per county.