drum gate

drum gate

[′drəm ‚gāt]
(civil engineering)
A movable crest gate in the form of an arc hinged at the apex and operated by reservoir pressure to open and close a spillway.
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References in periodicals archive ?
Tenders are invited for O%Shaughnessy Dam Drum Gate Automation
The objective of the project To replace manually operated 18-inch valves with new control valves to allow drum gate operation by PLC based control system.
Successful completion of the project relied on Lochner's ability to show NYSDOT and the community how three proposals would impact the surrounding area and seamlessly connect with a complex interchange at US Route 11, west of the Fort Drum Gate.