A multi-vehicle crash is blocking the left lane of westbound Interstate 8 at the Devils Canyon Bridge, backing up traffic on the Mountain Springs grade in southeastern San Diego County. Tow trucks and first responders are on scene, and the collision is triggering slowdowns toward the high desert. Drivers heading westbound should expect delays and build in extra travel time through the area.
Caltrans issues alert
In a post from Caltrans District 11, officials said the left lane of westbound I-8 is blocked at the Devils Canyon Bridge while crews work to clear the scene. The agency urged drivers to expect delays in the westbound lanes and to use caution when approaching the Mountain Springs grade.
⚠️TRAFFIC ALERT⚠️
— Caltrans District 11 (@SDCaltrans) March 2, 2026
A multi-vehicle traffic collision has the left lane of westbound 8 blocked at Devils Canyon Bridge. pic.twitter.com/u1JHwGzAQn
Why this stretch snarls traffic
The Devils Canyon section of I-8 is a steep, narrow mountain grade where the westbound lanes run separately from the eastbound lanes, which can make breakdowns and crashes especially disruptive to traffic flow. This stretch is known for sudden wind gusts and steep grades that can slow heavy trucks and spark multi-vehicle pileups, as outlined by California Highways. Motorists unfamiliar with the descent are advised to give themselves extra time and watch for slowed or stopped vehicles.
How to get live updates
For live conditions and lane-status updates, check Caltrans QuickMap or monitor the California Highway Patrol's site for incident information. Caltrans District 11's website also lists traveler resources for the region, including cameras and planned lane-closure notices. We'll update this post when agencies release more details.
