Southbound Highway 101 traffic was backing up through part of San Luis Obispo Tuesday after part of a truck hit a bridge.
It happened around 4:05 p.m. in the southbound lanes.
The tree trimming truck was being towed on the back of a flatbed trailer at the time.
California Highway Patrol Captain Greg Klingenberg says it’s believed a portion of the truck only hit the railroad bridge, but the California Boulevard overpass was also being checked.
One lane of traffic was being let through the area as of 4:30 p.m. but a SIG Alert has been issued due to the backup.
Crews were called out to assess damage to the bridge.
There have been no reports of injuries.