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2. Chesapeake and Ohio Canal - Wikipedia

   en.wikipedia.org/wiki/Chesapeake_and_Ohio_Canal

   Records indicate that in the 1879, a single steamboat could go 3 + 1 ⁄ 4 miles per hour (5.2 km/h) loaded downstream, 4 + 1 ⁄ 2 miles per hour (7.2 km/h) unloaded going upstream, and took 5 to 7 minutes to lock through whether going upstream or downstream (respectively) and used about a ton of coal per day for operation.

3. Pontoon bridge - Wikipedia

   en.wikipedia.org/wiki/Pontoon_bridge

   A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow- draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.

4. Lacey V. Murrow Memorial Bridge - Wikipedia

   en.wikipedia.org/wiki/Lacey_V._Murrow_Memorial...

   History. Opened. July 2, 1940. Rebuilt. September 12, 1993. Location. The Lacey V. Murrow Memorial Bridge is a floating bridge in the Seattle metropolitan area of the U.S. state of Washington. It is one of the Interstate 90 floating bridges that carries the eastbound lanes of Interstate 90 across Lake Washington from Seattle to Mercer Island ...

5. Evergreen Point Floating Bridge - Wikipedia

   en.wikipedia.org/wiki/Evergreen_Point_Floating...

   The 7,578-foot-long (2,310 m) floating span consisted of 33 pontoons and cost $24.7 million to construct (equivalent to $246 million in 2024); [6] the bridge carried four lanes of traffic, separated by a curb that was later replaced with a simple Jersey barrier; at the center was a drawspan that opened for large vessels traversing the lake.

6. Ukraine says it hits pontoon bridges in Kursk region with US ...

   www.aol.com/news/ukraine-says-hits-pontoon...

   Russian officials have said Ukraine has damaged or destroyed at least three bridges over the Seym River since Kyiv launched a major assault into western Russia on Aug. 6 advancing up to 28-35 ...

7. Left Coast Lifter - Wikipedia

   en.wikipedia.org/wiki/Left_Coast_Lifter

   The total cost was approximately US$50,000,000 (equivalent to $71,010,000 in 2023). [ 5 ] Before Left Coast Lifter was fitted out with the crane for bridge construction, it was deemed to violate the Jones Act because, since the integral crane would be built and installed in China, it could not be used to transport goods by water between U.S. ports.