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  2. 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.

  3. Float (nautical) - Wikipedia

    en.wikipedia.org/wiki/Float_(nautical)

    A pontoon boat is a flattish boat that relies on nautical floats for buoyancy. Common boat designs are a catamaran with two pontoons, or a trimaran with three. [2] In many parts of the world, pontoon boats are used as small vehicle ferries to cross rivers and lakes. [3] An anchored raft-like platform used for diving, often referred to as a pontoon

  4. Cumberland Pontoons - Wikipedia

    en.wikipedia.org/wiki/Cumberland_Pontoons

    Early pontoon bridges during the Civil War were heavy and awkward, and required special long-geared pontoon carriers to transport them to the site of the planned river crossing. There were two main types—the French-designed wooden bateau (known in the army as a "Cincinnati pontoon") and the Russian pontoon, a canvas boat. Both types were ...

  5. Dardanelle pontoon bridge - Wikipedia

    en.wikipedia.org/wiki/Dardanelle_pontoon_bridge

    The dimensions of each pontoon boat are: depth, 36 inches; width, 12 feet; length, 28 feet. The boats are coupled in sections, six boats to a section. There are nine sections and all may be easily moved to the edge of the river when a storm is seen approaching, or repair work is needed quickly.

  6. Pontoon boat - Wikipedia

    en.wikipedia.org/wiki/Pontoon_boat

    A pleasure boat with two lengthwise pontoons. A pontoon boat is a flattish boat that relies on floats to remain buoyant. These pontoons (also called tubes) contain much reserve buoyancy and allow designers to create large deck plans fitted with a variety of accommodations including expansive lounge areas, stand-up bars, and sun pads.

  7. Sea anchor - Wikipedia

    en.wikipedia.org/wiki/Sea_anchor

    A conical sea anchor with tripline (from an illustration in The Sailors Handbook by Halsey C. Herreshoff). An early wooden drogue. A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy weather. Its purpose is to stabilize the vessel and to limit ...

  8. Caisson (engineering) - Wikipedia

    en.wikipedia.org/wiki/Caisson_(engineering)

    Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.

  9. List of pontoon bridges - Wikipedia

    en.wikipedia.org/wiki/List_of_pontoon_bridges

    Replacing a private ferry when it opened in 1891, the movable structure operated as a toll bridge. It was used until January 1929, when a toll-free bridge of concrete and steel replaced it at a cost of $600,000. Once considered the longest pontoon bridge in the world at 2,150 feet, its original construction cost $35,000.

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