Alfalfa County, OK Shrink-Swell Risk

Shrink-swell potential in Alfalfa County, OK

Low

Soil across 57% of Alfalfa County, OK comes back "Low" in USDA's shrink-swell data, averaging 2.5% 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 this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Alfalfa County, OK - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Alfalfa County will actually do.

Alfalfa County: the real numbers

Alfalfa 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 Alfalfa County, OK compares

Among the 3,085 rated counties on this site, Alfalfa County, OK ranks 1,567 most-constrained nationally, and 60 of 77 within Oklahoma. Alfalfa County, OK is 867 square miles with a population of 5,712.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Beaver County, PA and Calhoun County, IA 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 McCurtain County, OK and McClain County, OK. The full underlying dataset is downloadable directly, one row per county.