Lawrence County, MO Shrink-Swell Risk
Shrink-swell potential in Lawrence County, MO
Low
Soil across 93.4% of Lawrence County, MO comes back "Low" in USDA's shrink-swell data, averaging 1.81% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Lawrence County, MO - 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).
Lawrence County: the real numbers
Lawrence 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.
Lawrence County's rank among Missouri counties
Among the 3,085 rated counties on this site, Lawrence County, MO ranks 2,159 most-constrained nationally, and 101 of 114 within Missouri. The county spans 612 square miles, home to 39,151 people.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Washington County, WI and Atascosa County, TX 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 Missouri
Every county in Missouri is on this site, including Putnam County, MO and Dade County, MO. The full underlying dataset is downloadable directly, one row per county.