The California Highway Patrol is investigating a traffic accident that blocked a portion of Orchard Road near Holtville.

The accident was reported at about 3:15 p.m. Wednesday when a big rig struck a utility pole on the Orchard Road onramp to Interstate 8. The mishap caused wires and the pole to be knocked into the roadway blocking traffic. The roadway was expected to be partially blocked until at least 10:00 p.m. Wednesday. There were no injuries reported.