Clowes Lock 20 (Andrewsville)

Canada / Ontario / Smiths Falls / Andrewsville
 place with historical importance, lock (water navigation)
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Clowes features a single lock, a waste water weir and an overflow dam, one of the few used on the Rideau. Colonel By originally planned all his dams to be overflow dams, but his experiences with spring flood on the Rideau soon changed his mind, and he added waste water weirs (a water control mechanism) to most of the locks. However, at Clowes and a few other places, he left the main dam as an overflow dam, the height of the dam being the level of navigation. The addition of the weir allows excess water to be quickly discharged.

www.rideau-info.com/
Wikipedia article: http://en.wikipedia.org/wiki/Rideau_Canal
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Coordinates:   44°56'46"N   75°49'20"W
This article was last modified 4 years ago