Cannon County, TN Shrink-Swell Risk

Cannon County's SSURGO shrink-swell reading

Moderate

In Cannon County, TN, 63.8% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.13% linear extensibility on average. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

Before you rely on this for one address

Cannon County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Budgeting for Cannon County, TN

Cannon 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.

Cannon County's rank among Tennessee counties

Among the 3,085 rated counties on this site, Cannon County, TN ranks 1,093 most-constrained nationally, and 13 of 95 within Tennessee. The county spans 266 square miles, home to 15,142 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Chisago County, MN and Butler County, KS 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 Polk County, TN and Morgan County, TN. The full underlying dataset is downloadable directly, one row per county.