Coffee County, AL Shrink-Swell Risk

Shrink-swell potential in Coffee County, AL

Low

Soil across 68% of Coffee County, AL comes back "Low" in USDA's shrink-swell data, averaging 1.95% 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 this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Coffee County, AL - never a reading for one specific parcel. 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 Coffee County.

Coffee County: the real numbers

Coffee 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.

Coffee County's rank among Alabama counties

Among the 3,085 rated counties on this site, Coffee County, AL ranks 2,029 most-constrained nationally, and 32 of 67 within Alabama. Coffee County covers 679 square miles and counts 56,358 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Woodward County, OK and Shelby County, TX 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 Alabama

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