A tractor trailer accident on July 31, 2008, backed up traffic on I-81 well into the afternoon.  Police say a driver from Richmond was headed southbound on I-81 when she ran her van off the road and struck a guard rail, leaving her vehicle in the path of oncoming traffic.

The driver of the tanker trailer behind her slammed on his brakes to avoid a collision, but was then rear-ended by a second tractor-trailer.  The driver of the tractor-trailer was cited for following too closely. 

No injuries were reported.