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Long pontoon forms drawspan in railway bridge
Creosoted-timber pontoon 396×50 ft for draw opening of Mississippi River bridge of Chicago, Milwaukee, St. Paul and Pacific Railroad, at Wabasha, Minn; at one end, downstream corner of pontoon is pivoted to pile pier, free end resting against pile bumper; adjustable track deck with vertical travel of 11 ft, raised by screw jacks in lifts of 8 in.; framing and creosoting of hull; cost $72,000.
Long pontoon forms drawspan in railway bridge
Creosoted-timber pontoon 396×50 ft for draw opening of Mississippi River bridge of Chicago, Milwaukee, St. Paul and Pacific Railroad, at Wabasha, Minn; at one end, downstream corner of pontoon is pivoted to pile pier, free end resting against pile bumper; adjustable track deck with vertical travel of 11 ft, raised by screw jacks in lifts of 8 in.; framing and creosoting of hull; cost $72,000.
Long pontoon forms drawspan in railway bridge
Eng News-Rec
Engineering News-Record ; 198
1932
2 pages
Article (Journal)
English
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