Tehama County, CA Shrink-Swell Risk

Tehama County, CA's soil, for shrink-swell risk

Low

Tehama County, CA: USDA's soil survey rates 67.9% of the county "Low" for shrink-swell potential (2.49% 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 Tehama County's reading doesn't cover

Two lots a mile apart in Tehama County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Tehama County will actually do.

What it costs to find out, versus to ignore it

With Tehama County, CA 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 Tehama County, CA compares

Nationally, Tehama County, CA is the 1,570-most-constrained of 3,085 rated counties for shrink-swell soil. Within California alone it ranks 37 of 58. The county spans 2,949 square miles, home to 64,451 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Jackson Parish, LA and Wheeler 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 California

Every county in California is on this site, including Monterey County, CA and Amador County, CA. The full underlying dataset is downloadable directly, one row per county.