People who use the San Mateo Bridge into the East Bay will want to find a different route this morning.
Traffic is at a standstill on the westbound side of the bridge after a crash involving three big rigs this morning.
A medical helicopter was brought in earlier to airlift the injured from the scene. Crews are working to remove debris and powder cement that spilled after the crash.
Because the crash took place near the middle of the bridge, some drivers remain stuck in traffic on the westbound side with no way to get off the bridge.
A spokesman for the California Highway Patrol could not say when
lanes will be open again. It's not clear how many people were hurt, or the nature of their injuries.
The CHP is advising drivers to use the Dumbarton Bridge as an alternate route.