Morgan County, TN Shrink-Swell Risk
Morgan County, TN's soil, for shrink-swell risk
Low
Morgan County, TN: USDA's soil survey rates 100% of the county "Low" for shrink-swell potential (1.28% linear extensibility). Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
What Morgan County's reading doesn't cover
Two lots a mile apart in Morgan County can carry different soil, even though they share one countywide reading. 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 Morgan County.
What it costs to find out, versus to ignore it
With Morgan County, TN 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.
How Morgan County, TN compares
Nationally, Morgan County, TN is the 2,719-most-constrained of 3,085 rated counties for shrink-swell soil. Within Tennessee alone it ranks 91 of 95. Morgan County, TN is 522 square miles with a population of 21,954.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Gogebic County, MI and Hancock 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
More of Tennessee
Every county in Tennessee is on this site, including Campbell County, TN and Claiborne County, TN. The full underlying dataset is downloadable directly, one row per county.