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怀柔水庫位于河北省怀柔縣城西約2公里。怀柔縣在北京东北,距离90公里。自北京有铁路与公路經过通州,順义直达怀柔。水庫建于潮白河支流怀河之上,控制流域面積約450平方公里。土坝高20公尺,長1000余公尺。左岸第二級階地上尚須建筑高1—7公尺,長达2公里的付坝。主坝左端有長600余公尺的溢洪道,右岸有長約50公尺的輸水隧洞。水庫建成后,蓄水4450万立方
Huairou Reservoir is located in Huairou County, Hebei Province, about 2 km west. Huairou County in northeast Beijing, distance of 90 km. Since Beijing has railway and highway through Tongzhou, Shunyi direct Huairou. Reservoir built in the tributary of Chaobai River on the river, control basin area of about 450 square kilometers. Earth dam 20 meters high, more than 1,000 meters long. On the left bank of the second terrace must be constructed 1-7 meters high, up to 2 km pay dam. There is a spillway of more than 600 meters in length at the left end of the main dam and a water tunnel of about 50 meters in length on the right bank. After the reservoir is built, it will store 44,500,000 cubic meters of water