A major route along the Ohio side of the Ohio River was closed Friday after a house-sized boulder fell on the westbound lanes.

IRONTON, Ohio —A major route along the Ohio side of the Ohio River was closed Friday after a house-sized boulder fell on the westbound lanes.

The rockslide happened at about 3 a.m. on U.S. 52 just across the river from Ashland, Ky., allowing crews to detour Ohio traffic through Kentucky.

WSAZ-TV reported that a pickup ran into the rock shortly after it fell, but the driver was not injured.

Crews estimate it will take two days to remove the boulder and other debris.