Blair County, PA Shrink-Swell Risk

Blair County's SSURGO shrink-swell reading

Low

In Blair County, PA, 78.1% of the surveyed soil carries a "Low" shrink-swell rating, 1.82% 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

Blair County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Budgeting for Blair County, PA

Blair 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.

Blair County's rank among Pennsylvania counties

Among the 3,085 rated counties on this site, Blair County, PA ranks 2,146 most-constrained nationally, and 13 of 67 within Pennsylvania. Blair County covers 525 square miles and counts 120,269 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Liberty County, GA and Walker County, AL 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 Northampton County, PA and Erie County, PA. The full underlying dataset is downloadable directly, one row per county.