Traill County, ND Shrink-Swell Risk

Traill County, ND's soil, for shrink-swell risk

Moderate

Traill County, ND: USDA's soil survey rates 37.7% of the county "Moderate" for shrink-swell potential (4.63% linear extensibility). That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What Traill County's reading doesn't cover

Two lots a mile apart in Traill County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Traill County, ND 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.

Traill County's rank among North Dakota counties

Nationally, Traill County, ND is the 363-most-constrained of 3,085 rated counties for shrink-swell soil. Within North Dakota alone it ranks 2 of 53. The county spans 862 square miles, home to 7,989 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Winston County, MS and Ness 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

More of North Dakota

Every county in North Dakota is on this site, including Morton County, ND and Sargent County, ND. The full underlying dataset is downloadable directly, one row per county.