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UER Forum > UE Encyclopedia > Sluice Gate (Drain) (Viewed 2975 times)
Entry: Sluice Gate (Drain)
originally posted by trent

[last edit 9/16/2009 7:15 PM by trent - edited 1 times]

The term sluice gate refers to any gate that operates by allowing water to flow under it. When a sluice gate is fully lowered, water sometimes spills over the top, in which case the gate operates as a weir.

Usually a mechanism drives the sluice gate up or down. This may be a simple, hand-operated, worm drive or rack and pinion drive, or it may be electrically or hydraulically powered. The can be operated manually in person or remotely from a control room.

Please use caution when crawling under a slightly open sluice gate. Depending on how technological the drain system is someone 10 miles away in a control room could lower it while you're under it. However gate movement activity would be more common during a wet weather event and a couple days before or after the event. In some systems when rain is forecasted, the day before the gates are tested or adjusted to prepare for the pending storm. "When it's raining don't go draining" is good advice but also be aware that sluice gates can move when it's not raining at all.

Gates can have various or multiple roles in a drain system. They can be used to regulate the flow so that down stream flow remains at a constant speed/volume.

They can be used to direct or divert flow into or away from different parts of a system so that one part doesn't get overloaded.

They can be lowered to about 5% open during non-rain events to minimize any gas/odor exiting the drain system and also to keep the pesky trespassers out.
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UER Forum > UE Encyclopedia > Sluice Gate (Drain) (Viewed 2975 times)


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