Mare Island Drawbridge
Lift drawbridgeMare Island Drawbridge is a lift drawbridge with 13 ft of clearance closed, measured to mean high water. Open, it is charted at 100 ft.
Clearances are from NOAA chart US5OAKJI, measured to mean high water. Actual clearance is lower whenever the water stands above that level, as at higher tides and in storm surge. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.
Pathr nautical charts
Mare Island Drawbridge on the chart
Find the bridge and its charted vertical clearance in one view. Select a pin to compare nearby bridges, see open and closed clearances where charted, and open its operating details.
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.
Frequently asked
What is the clearance under Mare Island Drawbridge?+
Mare Island Drawbridge is a lift drawbridge with 13 ft of clearance closed, measured to mean high water. Open, it is charted at 100 ft. These figures are from NOAA chart data. Real clearance drops whenever the water stands above the level they are measured to, so leave a margin for your air draft.
How do I get Mare Island Drawbridge to open?+
Contact the bridge tender on VHF-FM 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
Tides & conditions at this crossing
Clearance under Mare Island Drawbridge shrinks as the water rises. Check the water level and marine conditions at the nearest NOAA station, Vallejo, Mare Island Strait (0 mi away).
