Gilpin County, CO Shrink-Swell Risk

Shrink-swell potential in Gilpin County, CO

Low

Soil across 98.8% of Gilpin County, CO comes back "Low" in USDA's shrink-swell data, averaging 0.71% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Gilpin County, CO - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Gilpin County: the real numbers

Gilpin 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Gilpin County, CO ranks 3,014 most-constrained nationally, and 63 of 63 within Colorado. Gilpin County, CO is 150 square miles with a population of 5,963.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Adair County, KY and Karnes County, TX 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 Colorado

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