铁桥至东坝头的河道,已有五百年以上的历史,全长122公里,河床宽一般10公里,1855年铜瓦厢决口改道后,此段河槽下切很多,两岸滩区多形成为高滩。两岸高滩之间除府君寺与曹岗断面河槽宽为2.4公里外,其余一般为3～6公里,个别处宽达9公里左右。在此河段内,虽然已有险工、护滩控导工程和护村工程42处,护岸长度108公里,占南北两岸总长的44.3%,但由于工程不规 There are over 500 years of history in the river course from Tieqiao to Dongbaitou, with a total length of 122 kilometers and a broad riverbed of 10 kilometers. After the diversion of the copper wagons in 1855, many sections of the river trough are cut down, High Beach. In addition to Fukushan and Cao Gang section of the river bank width of 2.4 kilometers wide, the rest is generally 3 to 6 kilometers, some of the width of 9 km or so. In this section of the river, although 42 workers have been involved in risk control and protection of the beach and the village nursing works, the revetment length is 108 kilometers, accounting for 44.3% of the total length of both sides of the North and South Strait. However,