Pend Oreille County, WA Shrink-Swell Risk

Pend Oreille County, WA's soil, for shrink-swell risk

Low

Pend Oreille County, WA: USDA's soil survey rates 95% of the county "Low" for shrink-swell potential (1.26% linear extensibility). 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.

What Pend Oreille County's reading doesn't cover

Two lots a mile apart in Pend Oreille County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Pend Oreille County, WA 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, Pend Oreille County, WA is the 2,734-most-constrained of 3,085 rated counties for shrink-swell soil. Within Washington alone it ranks 38 of 39. The county spans 1,400 square miles, home to 14,332 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Sumter County, GA and Todd County, KY 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 Washington

Every county in Washington is on this site, including Pierce County, WA and Kitsap County, WA. The full underlying dataset is downloadable directly, one row per county.