铜街子水电站自开工以来,已按期完成了导流明渠下闸所需的形象面貌和准备工作,并于1991年11月8日通过了明渠下闸前的阶段验收,28日顺利下闸,大渡河河水改道由四个坝内底孔宣泄,电站进入后期导流阶段的施工。到目前为止,工程完成总投资13.08亿元,土建工程完成90％以上,金属结构工程亦完成过半,第一台机组 Since its commencement, Tongjiezi Hydropower Station has completed the required profile and preparation for the downstream diversion canal under the condition of being completed on schedule. It passed the stage acceptance before the open channel under the open channel on November 8, 1991 and smoothly closed down on the 28th. Dadu River water diversion from the bottom hole of four dam venting, the power station into the post-diversion stage of construction. So far, a total investment of 1.308 billion yuan has been completed, more than 90% of civil works completed, and over half of metal structures completed. The first unit