The Nos. 1, 2, and 3 lanes on the westbound side of the highway before Fremont Street in San Francisco opened at about 8:20 a.m., CHP Officer Tom Stewart said.
Traffic in the accident area started moving immediately, he said, but the stall mixed with regular morning commute traffic and slowed drivers past the MacArthur Maze.
The accident between a truck and a motorcycle was reported at about 7:35 a.m., Stewart said. One person involved in the accident may have a broken leg, he said. Three lanes of traffic were closed just after 8 a.m., stalling bridge traffic to a near standstill.
