Sherman County, OR Shrink-Swell Risk
Sherman County's SSURGO shrink-swell reading
Low
In Sherman County, OR, 100% of the surveyed soil carries a "Low" shrink-swell rating, 1.5% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Sherman County's reading is an average across the whole county, not a promise about any one lot inside it. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Sherman County.
Budgeting for Sherman County, OR
Sherman County's soil reading points toward standard foundation practice as the likely outcome, not the exception. 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
Among the 3,085 rated counties on this site, Sherman County, OR ranks 2,509 most-constrained nationally, and 36 of 36 within Oregon. The county spans 824 square miles, home to 2,002 people.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Calaveras County, CA and Shawnee County, KS 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
Elsewhere in Oregon
Every county in Oregon is on this site, including Clackamas County, OR and Jefferson County, OR. The full underlying dataset is downloadable directly, one row per county.