Kent County, RI Shrink-Swell Risk
Kent County's SSURGO shrink-swell reading
Low
In Kent County, RI, 99.3% of the surveyed soil carries a "Low" shrink-swell rating, 0.66% 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
Kent 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 Kent County, RI
Kent 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.
Kent County's rank among Rhode Island counties
Among the 3,085 rated counties on this site, Kent County, RI ranks 3,024 most-constrained nationally, and 2 of 5 within Rhode Island. Kent County, RI is 169 square miles with a population of 172,450.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Lewis County, NY and Pawnee County, KS 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 Rhode Island
Every county in Rhode Island is on this site, including Providence County, RI and Washington County, RI. The full underlying dataset is downloadable directly, one row per county.