Morrow County, OR Shrink-Swell Risk
Morrow County's SSURGO shrink-swell reading
Low
In Morrow County, OR, 85.8% of the surveyed soil carries a "Low" shrink-swell rating, 2% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.
Before you rely on this for one address
Morrow 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 Morrow County.
Budgeting for Morrow County, OR
Morrow 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, Morrow County, OR ranks 1,986 most-constrained nationally, and 26 of 36 within Oregon. Morrow County, OR is 2,031 square miles with a population of 12,360.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Chicot County, AR and Franklin County, IA 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 Linn County, OR and Wallowa County, OR. The full underlying dataset is downloadable directly, one row per county.