SinkholeOdds

Sinkhole risk in Poquoson city, VA: 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%

What to do about a house in Poquoson city

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

Across 15 square miles, under one square mile of Poquoson city maps onto soluble rock. With about 12,854 residents (837 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 602 map points about 0.2 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Poquoson city

The nearest county rated sinkhole country is Hertford County, NC, about 65 miles southwest. 5 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 Virginia

Poquoson city ranks 131 of 133 in Virginia for soluble rock at the surface, and sits above 0% of US counties on that measure.