大桥(qiao)主航道(dao)桥合(he)龙段于5月29日顺利吊装到位，此后的10天(tian)时间，历经单(dan)侧梁段栓焊连(lian)接、斜拉(la)索挂设及张拉、全桥(qiao)钢桁梁顶(ding)推调(diao)位、合龙(long)口冲(chong)钉(ding)打入、高栓施拧、焊接等多道工(gong)序，至(zhi)今日实(shi)现“毫米级”精准合龙(long)，主航(hang)道桥主(zhu)体工(gong)程(cheng)施(shi)工(gong)全部完(wan)成(cheng)。