Union Pacific Railroad Lift Bridge
Lift drawbridgeUnion Pacific Railroad Lift Bridge is a lift drawbridge with 70 ft of clearance closed, measured to mean high water. Open, it is charted at 135 ft.
Clearances are from NOAA chart US5CA41M, 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
Union Pacific Railroad Lift Bridge 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
The draws of the Union Pacific railroad bridge, mile 1.5 at Suisun, shall open on signal if at least 24 hours notice is given.
Source: US Coast Guard drawbridge regulations, 33 CFR 117.151 (Cordelia Slough (a tributary of Suisun Bay)). Confirm before transiting.
Frequently asked
What is the clearance under Union Pacific Railroad Lift Bridge?+
Union Pacific Railroad Lift Bridge is a lift drawbridge with 70 ft of clearance closed, measured to mean high water. Open, it is charted at 135 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 Union Pacific Railroad Lift Bridge to open?+
Contact the bridge tender on VHF-FM, or sound the required signal. This bridge requires at least 24 hours advance notice. Operating schedule: The draws of the Union Pacific railroad bridge, mile 1.5 at Suisun, shall open on signal if at least 24 hours notice is given.
Tides & conditions at this crossing
Clearance under Union Pacific Railroad Lift Bridge shrinks as the water rises. Check the water level and marine conditions at the nearest NOAA station, Martinez-Amorco Pier (0 mi away).

