Sinkhole risk in Cass County, ND: 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 Cass County
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 1,765 square miles, under one square mile of Cass County maps onto soluble rock. With about 200,945 residents (114 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 368 map points about 2.2 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: how these percentages are measured, and the warning signs that apply anywhere.
Counties around Cass County
The nearest county rated sinkhole country is Boyd County, NE, about 288 miles south. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Clay County, MN 36 mi east · 0% at surface
- Traill County, ND 36 mi north · 0% at surface
- Ransom County, ND 38 mi southwest · under 1% at surface
- Barnes County, ND 39 mi west · under 1% at surface
- Steele County, ND 42 mi northwest · 0% at surface
- Norman County, MN 46 mi northeast · 0% at surface
Against the rest of North Dakota
Cass County ranks 14 of 53 in North Dakota for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Cavalier County 2%
- Ransom County under 1%
- Dunn County under 1%
- Barnes County under 1%
- Slope County under 1%