Sinkhole risk in Naugatuck Valley Planning Region, CT: 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.
Across 413 square miles, under one square mile of Naugatuck Valley Planning Region maps onto soluble rock. With about 462,220 residents (1,120 per square mile), most of the county is built up, so a mapped unit is likely to sit under somebody's street. The figures come from 556 map points about 0.9 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 Naugatuck Valley Planning Region
The nearest county rated sinkhole country is Union County, PA, about 210 miles west. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.
- South Central Connecticut Planning Region, CT 20 mi southeast · 0% at surface
- Greater Bridgeport Planning Region, CT 24 mi south · 0% at surface
- Northwest Hills Planning Region, CT 24 mi north · 0% at surface
- Western Connecticut Planning Region, CT 25 mi southwest · 0% at surface
- Lower Connecticut River Valley Planning Region, CT 32 mi east · 0% at surface
- Capitol Planning Region, CT 34 mi northeast · 0% at surface
The rock underneath
The largest mapped soluble unit here is the Basal member [of The Straits Schist] (schist), Silurian in age, covering about under 1% of the county.
Against the rest of Connecticut
Naugatuck Valley Planning Region ranks 4 of 9 in Connecticut for soluble rock at the surface, and sits above 0% of US counties on that measure.