Shelby County, MO Shrink-Swell Risk

Shelby County's SSURGO shrink-swell reading

High

In Shelby County, MO, 65.7% of the surveyed soil carries a "High" shrink-swell rating, 6.51% linear extensibility on average. This is enough movement to matter: a standard footing can hold up here, but usually only with real moisture management, not by default.

Before you rely on this for one address

Shelby County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Shelby County will actually do.

Budgeting for Shelby County, MO

Given Shelby County's rating, spending a few thousand now is the way to avoid spending tens of thousands later. A geotechnical report runs $1,000-$5,000 (typically $2,700); an actual foundation repair, once cracking sets in, typically runs $5,000-$15,000 (around $10,000 typical) - roughly 4x the report.

Shelby County's rank among Missouri counties

Among the 3,085 rated counties on this site, Shelby County, MO ranks 90 most-constrained nationally, and 4 of 114 within Missouri. Shelby County covers 501 square miles and counts 5,926 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Scott County, MN and Iron County, MO are worth a look for comparison.

How this reading is built, and its real limits · The warning signs of expansive-clay damage, explained

Elsewhere in Missouri

Every county in Missouri is on this site, including Jefferson County, MO and Dunklin County, MO. The full underlying dataset is downloadable directly, one row per county.