Clarion County, PA Shrink-Swell Risk

Clarion County's SSURGO shrink-swell reading

Low

In Clarion County, PA, 86.8% of the surveyed soil carries a "Low" shrink-swell rating, 1.46% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

Before you rely on this for one address

Clarion 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 Clarion County will actually do.

Budgeting for Clarion County, PA

Clarion 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, Clarion County, PA ranks 2,556 most-constrained nationally, and 38 of 67 within Pennsylvania. Clarion County, PA is 601 square miles with a population of 36,855.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Dade County, GA and Tioga County, NY 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 Pennsylvania

Every county in Pennsylvania is on this site, including Clinton County, PA and Elk County, PA. The full underlying dataset is downloadable directly, one row per county.