Platte County, WY Shrink-Swell Risk

Platte County, WY's soil, for shrink-swell risk

Low

Platte County, WY: USDA's soil survey rates 98.9% of the county "Low" for shrink-swell potential (1.71% linear extensibility). Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What Platte County's reading doesn't cover

Two lots a mile apart in Platte 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 Platte County will actually do.

What it costs to find out, versus to ignore it

With Platte County, WY 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, Platte County, WY is the 2,274-most-constrained of 3,085 rated counties for shrink-swell soil. Within Wyoming alone it ranks 23 of 23. Platte County covers 2,081 square miles and counts 8,512 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Maricopa County, AZ and Ogle County, IL 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 Wyoming

Every county in Wyoming is on this site, including Sublette County, WY and Converse County, WY. The full underlying dataset is downloadable directly, one row per county.