One of several places where state Route 12 crosses the intertwined rivers, canals and sloughs of the Sacramento Delta, The Molekumne River Swing Bridge is one of the largest bridges in the delta’s road system.

Use NOAA Chart 18661.

Characteristics: The bridge has an eight-foot closed vertical clearance with 100 feet of horizontal clearance at the center span. There are marine facilities on the north and south side of the bridge on the western shore of the Molekumne River, both of which warrant a look out for entering traffic.

The Molekumne River Swing Bridge operates on a restricted opening schedule.

From May 1 to Oct. 31, the bridge is operable between 6 a.m. and 10 p.m.

From Nov. 1 to April 30, the bridge is operable between 9 a.m. and 5 p.m.

Four hours advance notice is required at open the bridge during its normal operating periods. Call the bridgetender on VHF Channel 09 or via phone at 916-777-6660 to arrange an opening.

Local Notices to Mariners are now exclusively available online from the U.S. Coast Guard.