Simpson County, KY Shrink-Swell Risk

Shrink-swell potential in Simpson County, KY

Low

Soil across 93.2% of Simpson County, KY comes back "Low" in USDA's shrink-swell data, averaging 1.87% 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 Simpson County, KY - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Simpson County will actually do.

Simpson County: the real numbers

Simpson 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Simpson County, KY ranks 2,109 most-constrained nationally, and 94 of 120 within Kentucky. The county spans 234 square miles, home to 20,350 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Summit County, CO and Jefferson County, NY 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 Kentucky

Every county in Kentucky is on this site, including Marshall County, KY and Livingston County, KY. The full underlying dataset is downloadable directly, one row per county.