Sinkhole risk in Newport County, RI: 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 102 square miles, under one square mile of Newport County maps onto soluble rock. With about 83,468 residents (815 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 294 map points about 0.6 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 Newport County

The nearest county rated sinkhole country is Union County, PA, about 302 miles west. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Bristol County, RI 14 mi north · 0% at surface
Washington County, RI 19 mi west · 0% at surface
Kent County, RI 20 mi northwest · 0% at surface
Bristol County, MA 20 mi northeast · 0% at surface
Providence County, RI 30 mi northwest · 0% at surface
Dukes County, MA 31 mi east · 0% at surface

Against the rest of Rhode Island

Newport County ranks 3 of 5 in Rhode Island for soluble rock at the surface, and sits above 0% of US counties on that measure.