Mokelumne River Swing Bridge
Swing drawbridgeMokelumne River Swing Bridge is a swing drawbridge with 8 ft closed, opening to unrestricted height.
Clearances are from NOAA charts, referenced to mean high water. Actual clearance is lower at higher tides and storm surge. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.
How to request an opening
the Mokelumne River Bridge, mile 3.0, at East Isleton shall open upon signal as follows: (1) From November 1 through April 30 from 9 a.m. to 5 p.m. (2) From May 1 through October 31 from 6 a.m. to 10 p.m., except that during the following periods the draw need only open for recreational vessels on the hour, 20 minutes past the hour, and 40 minutes past the hour: (3) At all other times the draw shall open on signal if at least 4 hours notice i
Source: US Coast Guard drawbridge regulations, 33 CFR 117.175 (Mokelumne River). Confirm before transiting.
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Frequently asked
What is the clearance under Mokelumne River Swing Bridge?+
Mokelumne River Swing Bridge is a swing drawbridge. Its closed vertical clearance is about 8 ft, and it opens to unrestricted height. Heights are referenced to mean high water (MHW).
How do I get Mokelumne River Swing Bridge to open?+
Contact the bridge tender on VHF-FM Channel 13, or sound the required signal. This bridge requires at least 4 hours advance notice. Operating schedule: the Mokelumne River Bridge, mile 3.0, at East Isleton shall open upon signal as follows: (1) From November 1 through April 30 from 9 a.m. to 5 p.m. (2) From May 1 through October 31 from 6 a.m. to 10 p.m., except that during the following p
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