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The underwater repair of the damaged panel dam

CONDITIONS OF SERVICE FOR CLASSIFICATION OF SHIPS AND REGISTRATION OF INSTALLATIONS-2013 The work associated with re-licensing, modernization, upgrades, rehabilitation, repair, or maintenance of dams often has an underwater component. When it is not practical or cost-effective to dewater, much of the work must be performed underwater. Underwater repair minimizes the impact on power generation and recreation. It also eliminates the adverse structural and environmental impacts associated with dewatering.

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