Mare Island Drawbridge
Lift drawbridgeMare Island Drawbridge is a lift drawbridge with 13 ft closed and 100 ft open.
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
(a) The draw of the Mare Island Drawbridge, mile 2.8, at Vallejo shall open on signal between the hours of 9 a.m. and 7 p.m. daily, and upon two hours advance notice all other times. When the drawbridge operator is present, mariners may contact the drawbridge via marine radio or telephone at (707) 648-4313 for drawspan operation. When the drawbridge operator is not present, mariners may contact the City of Vallejo via the same telephone number to schedule drawspan operation.
Source: US Coast Guard drawbridge regulations, 33 CFR 117.169 (Mare Island Strait and the Napa River). Confirm before transiting.
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Frequently asked
What is the clearance under Mare Island Drawbridge?+
Mare Island Drawbridge is a lift drawbridge. Its closed vertical clearance is about 13 ft, opening to about 100 ft. Heights are referenced to mean high water (MHW).
How do I get Mare Island Drawbridge to open?+
Contact the bridge tender on VHF-FM Channel 13 or by phone at (707) 648-4313, or sound the required signal. Operating schedule: (a) The draw of the Mare Island Drawbridge, mile 2.8, at Vallejo shall open on signal between the hours of 9 a.m. and 7 p.m. daily, and upon two hours advance notice all other times. When the drawbridge operator is present, mariners may con
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