Delaware County, OH Shrink-Swell Risk
Delaware County, OH's soil, for shrink-swell risk
Moderate
Delaware County, OH: USDA's soil survey rates 87.5% of the county "Moderate" for shrink-swell potential (3.87% linear extensibility). A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.
What Delaware County's reading doesn't cover
Two lots a mile apart in Delaware County can carry different soil, even though they share one countywide reading. 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 Delaware County.
What it costs to find out, versus to ignore it
With Delaware County, OH rating "Moderate", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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.
Delaware County's rank among Ohio counties
Nationally, Delaware County, OH is the 636-most-constrained of 3,085 rated counties for shrink-swell soil. Within Ohio alone it ranks 22 of 88. The county spans 443 square miles, home to 237,966 people.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Pierce County, GA and Morgan County, UT 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
More of Ohio
Every county in Ohio is on this site, including Lake County, OH and Ashland County, OH. The full underlying dataset is downloadable directly, one row per county.