Duval County, FL Shrink-Swell Risk

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

Low

Duval County, FL: USDA's soil survey rates 92.5% of the county "Low" for shrink-swell potential (1.6% 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 Duval County's reading doesn't cover

Two lots a mile apart in Duval County can carry different soil, even though they share one countywide reading. 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 Duval County.

What it costs to find out, versus to ignore it

With Duval 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.

Duval County's rank among Florida counties

Nationally, Duval County, FL is the 2,381-most-constrained of 3,085 rated counties for shrink-swell soil. Within Florida alone it ranks 4 of 66. Duval County covers 763 square miles and counts 1,055,159 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Morgan County, CO and Garrard County, KY 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 Osceola County, FL and Volusia County, FL. The full underlying dataset is downloadable directly, one row per county.