A pair of problems on the bridge are slowing westbound traffic over the crossing to start the afternoon rush Tuesday.
A crash at the east end of the Port Mann through lanes is blocking traffic heading west. There is also a stall at the west end blocking the left Coquitlam exit lane.
The only lane getting through westbound is one Coquitlam exit lane.
Drivers can take the Pattullo Bridge as an alternate route.
More to come.