Ontario County, NY Shrink-Swell Risk

Ontario County's SSURGO shrink-swell reading

Low

In Ontario County, NY, 84.9% of the surveyed soil carries a "Low" shrink-swell rating, 2.13% 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

Ontario 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 Ontario County will actually do.

Budgeting for Ontario County, NY

Ontario 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.

Ontario County's rank among New York counties

Among the 3,085 rated counties on this site, Ontario County, NY ranks 1,859 most-constrained nationally, and 8 of 62 within New York. The county spans 644 square miles, home to 113,012 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Hamblen County, TN and Conecuh 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 New York

Every county in New York is on this site, including Chautauqua County, NY and Onondaga County, NY. The full underlying dataset is downloadable directly, one row per county.