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A treadway bridge was a multi-section, prefabricated floating steel bridge supported by pontoons carrying two metal tracks (or "tread ways") forming a roadway. Depending on its weight class, the treadway bridge was supported either by heavy inflatable pneumatic pontons or by aluminum-alloy half-pontons.
The new Evergreen Point Floating Bridge was designed to be more stable in stronger winds and raised the bridge deck much higher above the surface of the lake than the old bridge. Unlike the original floating bridge, where the road surface is directly on pontoons connected end-to-end, the new bridge featured pontoons laid north–south ...
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English: Looking eastbound on the Evergreen Point Floating Bridge (Washington State Route 520) on Lake Washington in Seattle, Washington, United States.The western approach, split between lower (eastbound) and upper (westbound) viaducts, leads to the new floating section, while the piers for the old section are visible at center-right.
A toll bridge until 1946, its common name is the I-90 bridge or Lake Washington Floating Bridge. It was the first floating bridge longer than a mile, and at the time was the longest floating structure in the world. It is now the second longest floating bridge in the world. Hood Canal Bridge. Completed 1961. Spans 6,521 feet (1,988 m).
The 1.6-mile bridge spans Baltimore's harbor, and photos show steel rods still wrapped around the container ship that rammed into it. ... See photos of the destruction and rescue operation below.
A chain ferry: in March 2017, the Isle of Wight Council, which operates the Cowes Floating Bridge (a chain ferry across the River Medina between Cowes and East Cowes), stated it was open to suggestions from residents for a new name for the vessel, after originally registering it as Floating Bridge no. 6.
Three sonar images provided by the U.S. ... Haunting sonar images show Baltimore bridge wreckage at bottom of channel. Noah Osborne. Updated April 10, 2024 at 12:55 PM.