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入江水道是淮河下游地区洪泽湖的主要排洪河道,设计排洪流量12000立方米每秒。河道长157.2公里,分为上、中、下三段。上段由三河闸至高邮湖,长57.8公里,河道宽度除闸下3公里穿过丘陵地段为1公里左右外,其余平原圩区地段为3公里左右,是筑堤束水漫滩排洪的河道。中段穿过高邮湖和邵伯湖,长57.7公里。下段由邵伯湖边的六闸向下经归江河道至三江营入江,长41.6公里。这段是感潮河道,有万福闸、太平闸、金湾闸、芒稻闸四座大型水闸控制排洪入江流量和邵伯湖蓄水位,在干旱年份还可引江补湖。
Inlet waterway is Hongze Lake in the lower reaches of the Huaihe River’s main flood discharge channel, designed flood discharge flow 12000 cubic meters per second. 157.2 km long river, divided into upper, middle and lower three sections. The upper section of the river from the Three Rivers to Gaoyou Lake, 57.8 km long, the width of the river except 3 kilometers under the gate across the hilly area for about 1 km, the remaining plain polder area of about 3 km, . The middle through the Gaoyou Lake and Shaobo Lake, 57.7 km long. The lower section of Shaobo Lake by the six gates down the river to the Sanjiang camp into the river, 41.6 km long. This section is a tidal channel with Wanfu Gate, Taiping Gate, Jinwan Gate and Miantao Gate. Four large sluices control flood discharge into the river and Shaobo Lake water level. During the dry years, they can also lead the river to make up the lake.