Miner County, SD Shrink-Swell Risk

Miner County, SD's soil, for shrink-swell risk

Moderate

Miner County, SD: USDA's soil survey rates 53.8% of the county "Moderate" for shrink-swell potential (4.03% 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 Miner County's reading doesn't cover

Two lots a mile apart in Miner 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 Miner County, SD 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.

Where this sits nationally

Nationally, Miner County, SD is the 548-most-constrained of 3,085 rated counties for shrink-swell soil. Within South Dakota alone it ranks 34 of 66. The county spans 570 square miles, home to 2,303 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Rankin County, MS and Yellowstone County, MT 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 South Dakota

Every county in South Dakota is on this site, including Deuel County, SD and Sully County, SD. The full underlying dataset is downloadable directly, one row per county.