Thursday, August 14, 2025

1905(Page Design!)+1933 3rd Street (Lefty O'Doul) Bridges over China Basin in San Francisco, CA

1905: (Archived Bridge Hunter; Bridge Hunter)

Boat View, Nov 2014

1905 Page Design Bridge


BridgeHunter_1905
"A bascule bridge is a Page type designed by John W Page he worked with Shnable and Strauss on Trunnion bascule bridges, few of the types were constructed."

The Page design was indeed rare. Because the Monon Bridge was illegally scrapped, the GM&O Bridge is the only one left in the USA.

BridgeHunter_1905 and Bridges Now and Then posted
Looking south at San Francisco's Third Street Bridge, September 17, 1921. (Horace Chaffee, photographer/SF Department of Public Works)

1938 Straus Heel Trunnion Bridge


Street View, Mar 2025

2018 Photo by Geoff Hubbs from AT&T Park via BridgeHunter_1933

HistoricBridges
"This particular example is unusual because it has a roadway that not only occupies the space between truss lines, but also has a roadway that is cantilevered out from the western truss line."

sfpublicworks

When I saw the Santa Fe sign, I checked out the railroad activity in this area. SP was on the northwest side, and Santa Fe was on the southeast side.
1950/50 San Francisco North @ 24,000

But when this bridge was built, it did accommodate steam locomotives. Note that the cantilevered road was added later.
 BridgeHunter_1933, Credit San Francisco History Center, SF Public Library
Bridge opening May 12, 1933

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