Cheatham County, TN Shrink-Swell Risk
Shrink-swell potential in Cheatham County, TN
Low
Soil across 97.5% of Cheatham County, TN comes back "Low" in USDA's shrink-swell data, averaging 1.35% 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 Cheatham County, TN - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Cheatham County: the real numbers
Cheatham 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, Cheatham County, TN ranks 2,660 most-constrained nationally, and 86 of 95 within Tennessee. Cheatham County covers 302 square miles and counts 42,604 residents.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Milwaukee County, WI and Mitchell County, GA 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 Tennessee
Every county in Tennessee is on this site, including Knox County, TN and Humphreys County, TN. The full underlying dataset is downloadable directly, one row per county.