Sullivan County, PA Shrink-Swell Risk

Sullivan County's SSURGO shrink-swell reading

Low

In Sullivan County, PA, 99.9% of the surveyed soil carries a "Low" shrink-swell rating, 0.8% 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

Sullivan County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Sullivan County.

Budgeting for Sullivan County, PA

Sullivan 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.

Sullivan County's rank among Pennsylvania counties

Among the 3,085 rated counties on this site, Sullivan County, PA ranks 2,990 most-constrained nationally, and 64 of 67 within Pennsylvania. Sullivan County covers 450 square miles and counts 5,927 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Daviess County, KY and Steuben 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 Mifflin County, PA and Union County, PA. The full underlying dataset is downloadable directly, one row per county.