Sinkhole risk in Grant 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%
What to do about a house in Grant Parish
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 644 square miles, under one square mile of Grant Parish maps onto soluble rock. With about 22,109 residents (34 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 542 map points about 1.1 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: why gypsum and salt move faster than limestone, and how these percentages are measured.
Counties around Grant Parish
The nearest county rated sinkhole country is Oktibbeha County, MS, about 249 miles northeast. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.
- Winn Parish, LA 24 mi north · 0% at surface
- LaSalle Parish, LA 24 mi east · 0% at surface
- Rapides Parish, LA 28 mi south · 0% at surface
- Natchitoches Parish, LA 32 mi west · 0% at surface
- Catahoula Parish, LA 42 mi east · 0% at surface
- Caldwell Parish, LA 44 mi northeast · 0% at surface
Against the rest of Louisiana
Grant Parish ranks 22 of 64 in Louisiana for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Acadia Parish 0%
- Allen Parish 0%
- Ascension Parish 0%
- Assumption Parish 0%
- Avoyelles Parish 0%