Estimating Data for Reservoir Gates

Charts for the determination of weight and cost data on some of the most common forms of water control gates used in conjunction with dams are presented in this paper. The types included are: High-pressure hydraulic operated slide gates, radial crest gates, roller crest gates, drum crest gates, and Broome gates. There are some published data on weights and costs of gates, but in most cases the exact items included are not known. Where tables of weights are given (in other publications), some gates may include much more conduitlining than others of the same type. Also, some may include considerable auxiliary equipment such as valves and piping, whereas others in the same table do not. In the case of radial gates, sometimes it is not clear whether or not the hoist or eve n the anchorages and other stationary parts are included. If adequate information is not given, no data are available for easily approximating the necessary addition for a complete estimate. Therefore, the utility of such data is limited, and it is believed that charts, such as those presented in this paper, fill a definite need.