Eagle County, CO Shrink-Swell Risk
What Eagle County, CO's soil means for a foundation
Low
USDA's SSURGO data puts Eagle County, CO's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.76% across 87% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
This is a county figure, not a lot figure
USDA's survey covers the whole of Eagle County, CO at once, not any single address. 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 Eagle County.
Report cost vs. repair cost
With Eagle County, CO rating "Low", 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 Eagle County, CO compares
Nationally, Eagle County, CO is the 2,205-most-constrained of 3,085 rated counties for shrink-swell soil. Within Colorado alone it ranks 47 of 63. Eagle County covers 1,684 square miles and counts 54,330 residents.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Bourbon County, KS and Crawford County, AR 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 San Miguel County, CO and Denver County, CO. The full underlying dataset is downloadable directly, one row per county.