Delta County, CO Shrink-Swell Risk

Delta County, CO's soil, for shrink-swell risk

Moderate

Delta County, CO: USDA's soil survey rates 51.8% of the county "Moderate" for shrink-swell potential (3.15% linear extensibility). A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What Delta County's reading doesn't cover

Two lots a mile apart in Delta 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 Delta County, CO 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.

How Delta County, CO compares

Nationally, Delta County, CO is the 1,085-most-constrained of 3,085 rated counties for shrink-swell soil. Within Colorado alone it ranks 4 of 63. Delta County, CO is 1,142 square miles with a population of 32,215.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Saginaw County, MI and Redwood County, MN 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 Colorado

Every county in Colorado is on this site, including Alamosa County, CO and La Plata County, CO. The full underlying dataset is downloadable directly, one row per county.