Precast concrete wedge-shaped blocks use the hydrodynamics of the flow to achieve immense stability in high velocity open channel conditions such as those found on dam spillways.

Dam spillway blocks are a concrete-step-overlay-protection system for embankment dams and spillways that are subject to high forces associated with overtopping flow. The downward weight (positive force) of the block and the uplift pressure (negative force) of the flowing water allow the system to remain stable. An effective drainage network – allowing water to be removed from beneath the system – is essential to the design of the overlay.

The blocks are bespoke manufactured to suit specific design and technical detail, for more information please call 01179 814500 or email


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