Sinkhole risk in St. Helena Parish, LA: 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 409 square miles, under one square mile of St. Helena Parish maps onto soluble rock. With about 10,857 residents (27 per square mile), much of the land is open, and the mapped rock may sit far from where people actually live. The figures come from 330 map points about 1.1 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around St. Helena Parish

The nearest county rated sinkhole country is Noxubee County, MS, about 202 miles northeast. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

East Feliciana Parish, LA 20 mi west · 0% at surface
Tangipahoa Parish, LA 23 mi southeast · 0% at surface
Livingston Parish, LA 26 mi south · 0% at surface
Amite County, MS 27 mi north · 0% at surface
East Baton Rouge Parish, LA 30 mi southwest · 0% at surface
Pike County, MS 31 mi northeast · 0% at surface

Against the rest of Louisiana

St. Helena Parish ranks 46 of 64 in Louisiana for soluble rock at the surface, and sits above 0% of US counties on that measure.