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An overflow spillway is most often constructed as part of a gravity dam or a buttress dam. The spillway section is lower than the other sections of the dam allowing water to flow over its top and down its front face.
Carlow Precast have developed a precast concrete panel system to standardise the construction of the spillway channels and to provide a cost effective solution for AMP 5 projects. We can construct spillway panels with form line finishes where it is necessary to blend the structure with the local landscape.

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Spillway Panel with Decorative Finish
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