Ohio highway boulder
Transportation officials say crews are working to clear a southern Ohio highway after a boulder the size of a two-story house fell onto the road overnight.

Kathleen Fuller with the Ohio Department of Transportation says the rock fell around 2:30 a.m. Friday onto the westbound lane of U.S. 52 near Coal Grove, across the Ohio River from Ashland, Kentucky. The boulder's estimated to be about 1,500 tons.

Officials say the area is susceptible to falling rock, as cliffs border the north side of the highway.

Ohio highway boulder 2

The highway's westbound lanes will remain closed through the weekend. Drivers on Interstate 64 in Huntington, West Virginia are being detoured to US 23.

Officials say no vehicles were struck by the boulder. One pickup truck collided with it, but the driver wasn't seriously hurt.

Associated Press