Warren County, NJ Shrink-Swell Risk

Warren County's SSURGO shrink-swell reading

Low

In Warren County, NJ, 94.2% of the surveyed soil carries a "Low" shrink-swell rating, 0.81% linear extensibility on average. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

Before you rely on this for one address

Warren 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 Warren County.

Budgeting for Warren County, NJ

Warren 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.

Warren County's rank among New Jersey counties

Among the 3,085 rated counties on this site, Warren County, NJ ranks 2,977 most-constrained nationally, and 19 of 21 within New Jersey. Warren County, NJ is 357 square miles with a population of 112,031.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Story County, IA and Marshall 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 Jersey

Every county in New Jersey is on this site, including Passaic County, NJ and Monmouth County, NJ. The full underlying dataset is downloadable directly, one row per county.