SinkholeOdds

Sinkhole risk in Cheshire County, NH: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

On soluble rock
under 1%
At or near the surface
0%
Buried under cover
under 1%

The next step for one property

No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.

That works out to roughly 5 of Cheshire County's 707 square miles on soluble rock. With about 78,078 residents (110 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 287 map points about 1.6 miles apart, so a pocket smaller than that can be missed or overstated.

Read next: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Cheshire County

The nearest county rated sinkhole country is Union County, PA, about 282 miles southwest. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

What Cheshire County is built on

The largest mapped soluble unit here is the Fitch Formation (Upper Silurian; Pridolian and Ludlovian) (marble), Upper Silurian - (Pridolian and Ludlovian) in age, covering about under 1% of the county.

Against the rest of New Hampshire

Cheshire County ranks 3 of 10 in New Hampshire for soluble rock at the surface, and sits above 0% of US counties on that measure.