An overturned big rig that had collided with another vehicle brought traffic to a standstill for thousands of drivers on the 605 Freeway in Whittier Thursday morning.
The truck spilled its contents on the freeway near Washington Boulevard in West Whittier-Los Nietos, prompting the California Highway Patrol to issue a Sig Alert and close all northbound lanes.
“Collision with overturned big rig & large pieces of concrete in lanes,” Caltrans said on X, formerly Twitter.
![Dump truck on 605](https://digital-staging.ktla.com/wp-content/uploads/sites/4/2023/11/605FwyWhittier.jpg?w=900)
Aerial footage from Sky5 showed the truck on its side perpendicular to the flow of traffic, as well as a large amount of debris on multiple lanes.
By about 6:45 a.m., traffic was slowly moving in both directions, though northbound vehicles were limited to only one lane. Lanes gradually reopened over the next several hours and the NB 605 was fully reopened at about 11:10 a.m., CHP said.
No serious injuries were reported.