Columbia provided construction inspection services for the construction of a new concrete spillway at the Y3 Dam. The project involved excavating a portion of the dam and constructing a new cast-in-place concrete spillway that includes a labyrinth wall weir designed to accommodate extreme flooding events, as well as appurtenant flow structures for normal operation.
Columbia’s inspector prepared daily reports for each project, reviewing and approving pay requests, coordinating field changes to the work performed, reviewing and approving as-builts, construction observation, responding to contractor questions and requests, and other associated tasks.
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