Threemile Slough Lift Bridge

Details

About

Introduction:

Located four miles downriver from Rio Vista, Threemile Slough Breaks off the Sacramento River just northeast of Decker Island and continues on south to the San Joaquin River at Twitchell Island.

Navigating the Bridge:

Use NOAA Chart 18661.

Characteristics: The bridge has a closed vertical clearance of 10 feet, with an open vertical clearance of 105 feet. In the center span, 150 feet of horizontal clearance is available. Depths in mid-channel on Threemile Slough range from 11 to 36 feet.

Bridge Schedule:

The bridge is tended 24 hours a day and will open on command. You can reach the bridgetender on VHF Channel 09, or via phone at 916-777-6649.

Local Notices to Mariners:

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