Abstract
This paper discusses the most common types of high-head gates, including slide gates, fixed-wheel gates, radial gates, and jet-flow gates, and their application. Hydraulic design considerations for these gates are discussed. “High-head gates” refers to all gates used in dams, tunnels, penstocks, or outlets that are required to withstand and operate under water heads greater than 25 m. The applicability of each type of gate is considered for high-head situations. The paper addresses the state of the art of high-head gates as it has developed since the 1973 paper by the Task Committee on Outlet Works of the Committee of Hydraulic Structures of the then–Hydraulics Division. This paper was submitted to the then–ASCE Hydraulic Division, as part of the final report to the Task Committee on Design and Operation of Hydraulic Gates.
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