Collier County, FL Shrink-Swell Risk

Collier County, FL's soil, for shrink-swell risk

Low

Collier County, FL: USDA's soil survey rates 98.1% of the county "Low" for shrink-swell potential (0.7% linear extensibility). That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What Collier County's reading doesn't cover

Two lots a mile apart in Collier County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Collier County will actually do.

What it costs to find out, versus to ignore it

With Collier County, FL 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.

Collier County's rank among Florida counties

Nationally, Collier County, FL is the 3,015-most-constrained of 3,085 rated counties for shrink-swell soil. Within Florida alone it ranks 52 of 66. Collier County covers 1,997 square miles and counts 416,233 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Fulton County, NY and Dillon County, SC 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 Florida

Every county in Florida is on this site, including Duval County, FL and Palm Beach County, FL. The full underlying dataset is downloadable directly, one row per county.