碧口水电站壤土心墙土石混合坝于1976年初基本竣工,蓄水发电四年多来运行情况良好。此坝是我国目前已建成的最高土石坝,坝顶长297.4米,最大填筑坝高101米,坝顶防浪墙高5.3米。坝壳填筑材料有堆石、石碴、砂砾石等。坝下有两道嵌入河床基岩的混凝土防 Bikou hydropower station loess core earth and rock mixing dam basically completed in early 1976, water storage power generation operation in good condition more than four years. This dam is China’s highest earth-rock dam has been built, the crest of 297.4 meters long, the largest filling dam height of 101 meters, 5.3 meters high crest wall. Dam shell filling materials are rockfill, ballast, sand and gravel. Under the dam there are two concrete bedrock embedded in the river bed