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  2. Roller dam - Wikipedia

    en.wikipedia.org/wiki/Roller_dam

    Roller gates of Mississippi River Lock and Dam No. 15, the largest roller dam in the world. Roller dams are a type of weir, or a dam that is designed to allow water to flow over the top in continuous action. They are used on rivers or other such moving bodies of water where erosion damage is undesirable, yet likely to occur.

  3. Floodgate - Wikipedia

    en.wikipedia.org/wiki/Floodgate

    Drum gates are hollow gate sections that float on water. They are pinned to rotate up or down. Water is allowed into or out of the flotation chamber to adjust the dam's crest height. Drum gates are controlled with valves. Drum gates on a diversion dam: Roller gates are large cylinders that move in an angled slot. They are hoisted with a chain ...

  4. Cantilever - Wikipedia

    en.wikipedia.org/wiki/Cantilever

    A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southern United States, a historic barn type is the cantilever barn of log construction. Temporary cantilevers are often used in construction. The partially constructed structure creates a cantilever, but the completed structure does not act as a cantilever.

  5. Dam - Wikipedia

    en.wikipedia.org/wiki/Dam

    The gates are set between flanking piers which are responsible for supporting the water load, and are often used to control and stabilize water flow for irrigation systems. An example of this type of dam is the now-decommissioned Red Bluff Diversion Dam on the Sacramento River near Red Bluff, California .

  6. Girder bridge - Wikipedia

    en.wikipedia.org/wiki/Girder_bridge

    A girder bridge is a bridge that uses girders as the means of supporting its deck. [1] The two most common types of modern steel girder bridges are plate and box. [citation needed]

  7. Tainter gate - Wikipedia

    en.wikipedia.org/wiki/Tainter_gate

    The Tainter gate is used in water control dams and locks worldwide. The Upper Mississippi River basin alone has 321 Tainter gates, and the Columbia River basin has 195. A Tainter gate is also used to divert the flow of water to San Fernando Power Plant on the Los Angeles Aqueduct. [1] Tainter gate at McAlpine Dam, Ohio River, Louisville, Kentucky

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