California Highway Patrol responded to a traffic accident in front of Vandenberg Air Force Base just after 4 p.m. Monday.
Officials said an overloaded box truck was traveling south on Highway 1 when it overturned near the base Main Gate.
A tow truck worked to remove the big rig from blocking the roadway. Traffic was rerouted during the investigation.
The accident was cleared around 6:30 p.m. and all lanes are open.
No injures have been reported and the cause of the accident is under investigation.