Washoe County, NV Shrink-Swell Risk

Washoe County's SSURGO shrink-swell reading

Moderate

In Washoe County, NV, 51.5% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.82% linear extensibility on average. 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.

Before you rely on this for one address

Washoe County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Washoe County will actually do.

Budgeting for Washoe County, NV

Washoe 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Washoe County, NV ranks 665 most-constrained nationally, and 1 of 17 within Nevada. The county spans 6,316 square miles, home to 507,280 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Owen County, KY and Shelby 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 Nevada

Every county in Nevada is on this site, including Clark County, NV and Pershing County, NV. The full underlying dataset is downloadable directly, one row per county.