Curry County, OR Shrink-Swell Risk

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

Moderate

USDA's SSURGO data puts Curry County, OR's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.05% across 57.9% of the county's surveyed land. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

This is a county figure, not a lot figure

USDA's survey covers the whole of Curry 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 Curry County will actually do.

Report cost vs. repair cost

With Curry County, OR rating "Moderate", 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.

Curry County's rank among Oregon counties

Nationally, Curry County, OR is the 1,158-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oregon alone it ranks 14 of 36. The county spans 1,628 square miles, home to 22,774 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Clinton County, KY and Madison County, TN 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 Grant County, OR and Coos County, OR. The full underlying dataset is downloadable directly, one row per county.