The vessel ventured into shallow water and gotten stuck when the tide went out. One person was rescued but three others opted to remain on-board until high tide.
All westbound lanes of state Highway 84 on the Dumbarton Bridge have reopened after a crash earlier Monday morning.
A car struck and severely injured a bicyclist in Menlo Park on Monday morning, authorities said.
Eight people had to be rescued, after their airboat struck a submerged pylon.
Caltrans plans to close the San Mateo-Hayward Bridge for at least one weekend in October to install a permanent fix for a cracked beam discovered in an expansion joint two years ago, transportation officials said Thursday.
The Dumbarton Bridge reopened Monday evening after being closed for most of the weekend for construction work.
Caltrans officials said Sunday that work on the Dumbarton Bridge is on track and the bridge is expected to reopen by Tuesday morning as scheduled.
Drivers will likely experience longer travel times this Labor Day weekend as the Dumbarton Bridge closes for construction work.
The Dumbarton Bridge will be closed over the long Labor Day weekend, as new seismic joints are installed on the eastern side of the span.
Caltrans officials say they are still on schedule to reopen the Dumbarton Bridge in time for the Tuesday morning commute after being closed Memorial Day Weekend.