Washita County, OK Shrink-Swell Risk

Shrink-swell potential in Washita County, OK

Low

Soil across 81.4% of Washita County, OK comes back "Low" in USDA's shrink-swell data, averaging 2.16% linear extensibility. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Washita County, OK - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Washita County: the real numbers

Washita 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 Washita County, OK compares

Among the 3,085 rated counties on this site, Washita County, OK ranks 1,840 most-constrained nationally, and 65 of 77 within Oklahoma. Washita County, OK is 1,003 square miles with a population of 10,839.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Greene County, AL and Wright County, MO 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 Oklahoma

Every county in Oklahoma is on this site, including Woods County, OK and Choctaw County, OK. The full underlying dataset is downloadable directly, one row per county.