Caddo Parish, LA Shrink-Swell Risk

Shrink-swell potential in Caddo Parish, LA

Moderate

Soil across 44.2% of Caddo Parish, LA comes back "Moderate" in USDA's shrink-swell data, averaging 4.55% linear extensibility. 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.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Caddo Parish, LA - never a reading for one specific parcel. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Caddo Parish.

Caddo Parish: the real numbers

Caddo Parish'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 Caddo Parish, LA compares

Among the 3,085 rated counties on this site, Caddo Parish, LA ranks 375 most-constrained nationally, and 34 of 64 within Louisiana. The county spans 880 square miles, home to 224,893 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Gibson County, IN and Republic County, KS 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 Louisiana

Every county in Louisiana is on this site, including Caldwell Parish, LA and Webster Parish, LA. The full underlying dataset is downloadable directly, one row per county.