SAN RAFAEL (CBS SF) — A big rig driver whose truck overturned on the Richmond-San Rafael Bridge Sunday, blocking traffic for more than five hours ignored high wind warnings and drove at excessive speeds prior to the accident, the California Highway Patrol said.

The truck was traveling east on Interstate 580 around 4:30 a.m., just east of the San Quentin off-ramp, at speeds in excess of 45 mph when it was overturned by strong winds, Officer Eric Hohmeister said.

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The driver had ignored high wind warning signs when entering the bridge, Hohmeister said.

The empty tractor trailer overturned on its right side, blocking the two left lanes. Tow crews had to wait for winds to subside before attempting to move the fallen vehicle.

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The truck was righted and the roadway reopened by about 10:30 a.m.

There were no reports of any injuries and no gasoline was spilled. Eastbound lanes were blocked for more than five hours, with traffic using the right shoulder to pass.

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