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Coquitlam Dam
Coquitlam Dam is a hydraulic fill embankment dam on the Coquitlam River in the city of Coquitlam, British Columbia. Although it has no powerhouse of its own, its waters divert to Buntzen Lake, making it part of BC Hydro's electrical generation infrastructure.〔BC Hydro: (Coquitlam River and Buntzen Lake Watersheds ) Retrieved on 22 February 2009〕 It is also one of the main reservoirs for the Greater Vancouver Water District.
==History==
The first Coquitlam Dam, built to raise the water level of Coquitlam Lake by five feet, was begun in April 1904, and completed in 1905. It was built to protect the water supply to powerhouses on Indian Arm, via a tunnel to Buntzen Lake, and also supplied water to New Westminster.〔Will Koop: (Coquitlam Watershed History ) Retrieved on 22 February 2009〕 By 1906 the original dam was discovered to be leaking, and while repairs were made the leak continued through 1908, until a second dam was completed in 1914. At the time of the tunnel's completion, it was the longest power diversion tunnel in the world.〔 Due to seismic concerns, an embankment dam was built on the downstream side of the original rockfill dam in 2008.〔BC Hydro: (Coquitlam Dam Seismic Upgrade ) Retrieved 12 March 2009〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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