Logan County, ND Shrink-Swell Risk

Shrink-swell potential in Logan County, ND

Low

Soil across 60.8% of Logan County, ND comes back "Low" in USDA's shrink-swell data, averaging 2.93% 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 Logan County, ND - 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).

Logan County: the real numbers

Logan 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.

Logan County's rank among North Dakota counties

Among the 3,085 rated counties on this site, Logan County, ND ranks 1,247 most-constrained nationally, and 37 of 53 within North Dakota. Logan County, ND is 993 square miles with a population of 1,880.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Jackson County, IL and Coffee 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 North Dakota

Every county in North Dakota is on this site, including Cavalier County, ND and Ward County, ND. The full underlying dataset is downloadable directly, one row per county.