Copco Lake
…2,400 to 2,500 cu ft/s (68 to 71 m3/s), through a flume and tunnels to a 27-megawatt powerhouse 1.5 miles (2.4 km) downstream, on the upstream end of Iron Gate Reservoir. The diversion bypassed a canyon section of the Klamath River that historically consisted of some steep rapids. The dam was required to maintain a…