There was a big traffic problem early Thursday on part of I-64 in Louisa County. A tractor-trailer hauling mail overturned near mile-marker 143 shortly before 6 a.m.

The westbound side of 64 was closed for about four hours. During that time, traffic had to be detoured onto Route 250 between Ferncliff and Zion Crossroads.

The truck driver was not injured.