SinkholeOdds

Sinkhole risk in Lower Connecticut River Valley Planning Region, CT: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

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

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.

Across 424 square miles, under one square mile of Lower Connecticut River Valley Planning Region maps onto soluble rock. With about 177,540 residents (419 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 264 map points about 1.3 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Lower Connecticut River Valley Planning Region

The nearest county rated sinkhole country is Union County, PA, about 239 miles west. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Against the rest of Connecticut

Lower Connecticut River Valley Planning Region ranks 3 of 9 in Connecticut for soluble rock at the surface, and sits above 0% of US counties on that measure.