Walsh County, ND Shrink-Swell Risk
Walsh County's SSURGO shrink-swell reading
Moderate
In Walsh County, ND, 54.4% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.65% linear extensibility on average. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.
Before you rely on this for one address
Walsh County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Walsh County will actually do.
Budgeting for Walsh County, ND
Walsh 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.
Walsh County's rank among North Dakota counties
Among the 3,085 rated counties on this site, Walsh County, ND ranks 761 most-constrained nationally, and 9 of 53 within North Dakota. Walsh County, ND is 1,282 square miles with a population of 10,214.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Lee County, NC and Grand Traverse County, MI 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 North Dakota
Every county in North Dakota is on this site, including Dunn County, ND and Burleigh County, ND. The full underlying dataset is downloadable directly, one row per county.