Nassau County, FL Shrink-Swell Risk

Nassau County's SSURGO shrink-swell reading

Low

In Nassau County, FL, 83.8% of the surveyed soil carries a "Low" shrink-swell rating, 2.78% linear extensibility on average. 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.

Before you rely on this for one address

Nassau County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Nassau County will actually do.

Budgeting for Nassau County, FL

Nassau 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.

Nassau County's rank among Florida counties

Among the 3,085 rated counties on this site, Nassau County, FL ranks 1,357 most-constrained nationally, and 1 of 66 within Florida. Nassau County, FL is 649 square miles with a population of 104,376.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Fort Bend County, TX and Hamilton County, IL 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 Florida

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