Delaware County, IA Shrink-Swell Risk

Delaware County's SSURGO shrink-swell reading

Low

In Delaware County, IA, 50.7% of the surveyed soil carries a "Low" shrink-swell rating, 2.87% 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

Delaware 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 Delaware County, IA

Delaware 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.

How Delaware County, IA compares

Among the 3,085 rated counties on this site, Delaware County, IA ranks 1,290 most-constrained nationally, and 92 of 99 within Iowa. The county spans 578 square miles, home to 17,609 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Mississippi County, AR and Scott County, MN 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 Iowa

Every county in Iowa is on this site, including Marshall County, IA and Franklin County, IA. The full underlying dataset is downloadable directly, one row per county.