A steel dam is a type of dam that uses steel plating and load-bearing beams as a structure. Intended as a permanent structure, the steel dam was an experiment to determine whether a construction technique could be devised that was cheaper than masonry, concrete, or earthworks, but less expensive than wooden dams. Be stronger. A spillway can be gradually eroded by water flow, including cavitations or turbulence of water flowing over the spillway, leading to its failure. Erosion rates are often monitored, and risk is usually reduced, by shaping the downstream face of the spillway into a curve that minimizes turbulent flow, such as an ogee curve.
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