McPherson County, NE Shrink-Swell Risk
McPherson County, NE's soil, for shrink-swell risk
Low
McPherson County, NE: USDA's soil survey rates 99.7% of the county "Low" for shrink-swell potential (0.25% linear extensibility). Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
What McPherson County's reading doesn't cover
Two lots a mile apart in McPherson County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in McPherson County will actually do.
What it costs to find out, versus to ignore it
With McPherson County, NE rating "Low", 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.
McPherson County's rank among Nebraska counties
Nationally, McPherson County, NE is the 3,076-most-constrained of 3,085 rated counties for shrink-swell soil. Within Nebraska alone it ranks 91 of 93. McPherson County covers 859 square miles and counts 376 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Grundy County, IA and Sherman County, OR 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 Nebraska
Every county in Nebraska is on this site, including Cedar County, NE and Platte County, NE. The full underlying dataset is downloadable directly, one row per county.