Apparently, the museum (just down the street from the Corvette factory) is also very close to the Mammoth Cave National Park, and there was a previously unknown cavern below the museum. This stuff happens all over the world. I visited a sinkhole near the Dead Sea in Israel that had taken out a road.
Says the Seattle Times, “These underground craters can open up in an instant, sucking in whatever lies above and leaving the surrounding area looking like an earthquake zone.” There are now 3,000 sinkholes in Israel, and the issue is a water shortage. As the Dead Sea dries up (it’s down a third since the 1960s), underground fresh water takes the place of salt water and eats away at the salt layer, causing the collapses.
It’s unclear if anything like that helped take out the poor Corvettes, but the Kentucky Geological Survey has been working on the sinkhole issue, and points out that limestone rock is underneath half the state. According to the area NPR station WUKY at the University of Kentucky:
Sinkholes form when a cave occurs in the limestone with a natural conduit or pipe going up toward the surface. If the soil above the conduit is repeatedly wetted by rain, or by human development activities, such as gutter downspouts, the covering soil erodes from below, forming an underground soil arch. It eventually collapses when the layer of soil gets too thin to support its own weight or something punches through it—like a truck.
Or, of course, a Corvette. The cars that went into the hole, according to CNN, are:
- 1962 “Black Corvette”
- 1984 PPG pace car
- 2009 ZR1 “Blue Devil”
- 1992 white “1 Millionth Corvette”
- 1993 ruby red “40th Anniversary Corvette”
- 2001 Mallett Hammer Z06 Corvette
- 2009 white “1.5 Millionth Corvette”
- 1993 ZR-1 Spyder