St. Lucie County, FL Shrink-Swell Risk

St. Lucie County, FL's soil, for shrink-swell risk

Low

St. Lucie County, FL: USDA's soil survey rates 95.7% of the county "Low" for shrink-swell potential (1.14% linear extensibility). That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What St. Lucie County's reading doesn't cover

Two lots a mile apart in St. Lucie 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 St. Lucie County.

What it costs to find out, versus to ignore it

With St. Lucie 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.

How St. Lucie County, FL compares

Nationally, St. Lucie County, FL is the 2,804-most-constrained of 3,085 rated counties for shrink-swell soil. Within Florida alone it ranks 26 of 66. The county spans 572 square miles, home to 390,670 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Bibb County, GA and Randolph 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 Florida

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