Summit County, UT Shrink-Swell Risk

Summit County, UT's soil, for shrink-swell risk

Low

Summit County, UT: USDA's soil survey rates 56.1% of the county "Low" for shrink-swell potential (2.64% linear extensibility). That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What Summit County's reading doesn't cover

Two lots a mile apart in Summit County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Summit County will actually do.

What it costs to find out, versus to ignore it

With Summit 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.

How Summit County, UT compares

Nationally, Summit County, UT is the 1,455-most-constrained of 3,085 rated counties for shrink-swell soil. Within Utah alone it ranks 7 of 29. Summit County, UT is 1,871 square miles with a population of 43,109.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Alleghany County, VA and Sandoval County, NM 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 Utah County, UT and Salt Lake County, UT. The full underlying dataset is downloadable directly, one row per county.