This Architectural Drawing is elevation of hydraulic gate. In hydraulic engineering, a gate is a rotating or sliding structure, supported by hinges or by a rotating horizontal or vertical axis, that can be located at an extreme of a large pipe or canal in order to control the flow of water or any fluid from one side to the other. Hydraulic gates are structures the design of which is highly dominated by the carried loading. From: Lock Gates and Other Closures in Hydraulic Projects For more information and details download the Drawing file.