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Four-lane retracting Pontoon Bridge
Two concrete pontoons, each 50 × 132 ft in plan, are moved by two 40-hp motors to and from retracted positions under approach ramps of roadway crossing channel 170 ft wide, in entrance to Cerritos Channel in Los Angeles harbor; pontoons were cast in excavations on shore kept dry by well-points during construction; original ideas appear in shear lugs, guide yokes, and ramp knuckles.
Four-lane retracting Pontoon Bridge
Two concrete pontoons, each 50 × 132 ft in plan, are moved by two 40-hp motors to and from retracted positions under approach ramps of roadway crossing channel 170 ft wide, in entrance to Cerritos Channel in Los Angeles harbor; pontoons were cast in excavations on shore kept dry by well-points during construction; original ideas appear in shear lugs, guide yokes, and ramp knuckles.
Four-lane retracting Pontoon Bridge
Eng News-Rec
Engineering News-Record ; 134
1945
3 pages
Article (Journal)
English
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Modular intelligent pontoon bridge device and pontoon bridge building method
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