Wasco County, OR Shrink-Swell Risk

What Wasco County, OR's soil means for a foundation

Low

USDA's SSURGO data puts Wasco County, OR's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.7% across 94.7% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

This is a county figure, not a lot figure

USDA's survey covers the whole of Wasco County, OR 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 Wasco County will actually do.

Report cost vs. repair cost

With Wasco County, OR 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, Wasco County, OR is the 2,282-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oregon alone it ranks 33 of 36. Wasco County, OR is 2,381 square miles with a population of 26,507.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. McCreary County, KY and Lake County, SD 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 Oregon

Every county in Oregon is on this site, including Washington County, OR and Crook County, OR. The full underlying dataset is downloadable directly, one row per county.