Bibb County, AL Shrink-Swell Risk

What Bibb County, AL's soil means for a foundation

Low

USDA's SSURGO data puts Bibb County, AL's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.62% across 95.7% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

This is a county figure, not a lot figure

USDA's survey covers the whole of Bibb County, AL at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Bibb County, AL 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.

Bibb County's rank among Alabama counties

Nationally, Bibb County, AL is the 2,363-most-constrained of 3,085 rated counties for shrink-swell soil. Within Alabama alone it ranks 44 of 67. Bibb County, AL is 622 square miles with a population of 22,258.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Wood County, WV and Piute County, UT 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 Alabama

Every county in Alabama is on this site, including Washington County, AL and Calhoun County, AL. The full underlying dataset is downloadable directly, one row per county.