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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.
U.S. Grant Bridge under construction on June 21, 2005 Aerial view of the bridge and surroundings. Contracts for the new U.S. Grant Bridge were given in the spring of 2001. Construction was expected to be complete in June 2004, but work fell behind schedule due to inclement weather, unusual flooding of the Ohio River, and the partial sinking of a floating construction barge which carried one of ...
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).
This is a list of bridges and other crossings of the Cuyahoga River from its mouth at Lake Erie upstream to its source at Burton, Ohio. The list includes current road and rail crossings, as well as various other crossings of the river.
At 7,869 feet (1.490 mi; 2.398 km) in length (floating portion 6,521 feet (1.235 mi; 1.988 km)), it is the longest floating bridge in the world located in a saltwater tidal basin, and the third longest floating bridge overall. [3] It opened in 1961 and was the second concrete floating bridge constructed in Washington.
A pair of Pittsburgh-area bridges reopened Saturday morning after 26 barges broke loose the previous night and floated uncontrolled down the Ohio River, damaging a marina, authorities said.
The bridge was designed by Figg Bridge Engineers, Inc. for ODOT. Construction began in 2001. The main span over the Maumee River is a cable-stayed type bridge with a single pylon and two spans 612'-6" (200 m) on each side of the pylon. The main span approaches are about 4,000 feet (1,200 m) north of the river and 3,350 feet (1,020 m) south of ...
Twenty-six barges loaded mostly with dry cargo broke loose from a Pittsburgh marina late Friday night and floated uncontrollably down the Ohio River, causing extensive damage to neighboring docks ...