Rio Arriba County, NM Shrink-Swell Risk
Rio Arriba County's SSURGO shrink-swell reading
Low
In Rio Arriba County, NM, 59.7% of the surveyed soil carries a "Low" shrink-swell rating, 2.78% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.
Before you rely on this for one address
Rio Arriba County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Rio Arriba County.
Budgeting for Rio Arriba County, NM
Rio Arriba 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 Rio Arriba County, NM compares
Among the 3,085 rated counties on this site, Rio Arriba County, NM ranks 1,360 most-constrained nationally, and 18 of 32 within New Mexico. The county spans 5,861 square miles, home to 39,955 people.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Union County, TN and Cherokee County, NC 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 New Mexico
Every county in New Mexico is on this site, including Luna County, NM and Chaves County, NM. The full underlying dataset is downloadable directly, one row per county.