sector gate

sector gate

[′sek·tər ‚gāt]
(civil engineering)
A horizontal gate with a pie-slice cross section used to regulate the level of water at the crest of a dam; it is raised and lowered by a rack and pinion mechanism.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
As a result, the accepted approach included a central sector gate, shaped somewhat like two pie-slices, paired with vertical lift gates on each side.
The first option is to build an 80ft lock inside Number Three Dock, while the alternative is for a "sector gate" just outside the Number Three Dock entrance.
For example, in the sector gate module, a total TABULAR DATA OMITTED of ten distresses have been identified.