黄河三门峡水库,控制集水面积占全流域面积的91.5%。水库防洪水位335m,相应1955年库容为98.5亿m~3,水库面积1050km~2;其回水长度黄河有156km,渭河有183km。水面宽度潼关以下为1～6km,潼关以上黄河为4～19km,渭河为3～10km,北洛河为2km左右。入库支流渭河、北洛河于潼关以上与黄河 The Yellow River Sanmenxia reservoir, control of catchment area of ​​the basin area of ​​91.5%. Reservoir flood control level 335m, corresponding to 1955, the storage capacity of 9.85 billion m 3, the reservoir area of ​​1050km ~ 2; backwater length of 156km Yellow River, Weihe River has 183km. The width of the water surface below Tongguan is 1 ~ 6km, the Yellow River above Tongguan is 4 ~ 19km, the Weihe River is 3 ~ 10km and the North Luo River is 2km. Weighed into the tributary of the tributaries of the river, North Luo River in Tongguan and the Yellow River