Sinkhole risk in Trimble County, KY: Pockets of it

Pockets of it

Soluble rock at the surface or under thin cover in part of the county.

On soluble rock: 68%
At or near the surface: 16%
Buried under cover: 52%

What to do about a house in Trimble County

Check the parcel against your state survey sinkhole map, and ask for an inspection if cracks, depressions or sticking doors show up.

That works out to roughly 100 of Trimble County's 148 square miles on soluble rock, 23 of them with the rock at or near the surface. With about 8,591 residents (58 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 613 map points about 0.5 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Trimble County

The nearest county rated sinkhole country is Oldham County, KY, about 16 miles south, close enough that the same rock may run under the county line. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Jefferson County, IN 12 mi northwest · 16% at surface
Carroll County, KY 13 mi east · 19% at surface
Oldham County, KY 16 mi south · 88% at surface
Henry County, KY 17 mi southeast · 48% at surface
Clark County, IN 22 mi southwest · 3% at surface
Scott County, IN 22 mi west · 2% at surface

What Trimble County is built on

The largest mapped soluble unit here is the Drakes Formation (dolostone (dolomite)), Ordovician in age, covering about 32% of the county. Next is the Laurel Dolomite, Osgood Formation, and Brassfield Dolomite, undivided at 22%.

Against the rest of Kentucky

Trimble County ranks 72 of 120 in Kentucky for soluble rock at the surface, and sits above 72% of US counties on that measure.