每經AI快訊，5月26日，隨著最后(hou)一塊長(chang)15米、重(zhong)81.6噸(dun)的拱(gong)(gong)肋(lei)節段吊裝到位，世界第二大(da)跨徑(jing)勁性骨架外包砼拱(gong)(gong)橋(qiao)(qiao)——沿江高(gao)速宜(yi)金(jin)段西寧河特大(da)橋(qiao)(qiao)主(zhu)拱(gong)(gong)順(shun)利(li)合(he)龍。大(da)橋(qiao)(qiao)為(wei)(wei)項目重(zhong)點控制性工程(cheng)，全長(chang)698米，主(zhu)橋(qiao)(qiao)為(wei)(wei)跨徑(jing)510米的上(shang)承式(shi)鋼(gang)筋(jin)混凝土拱(gong)(gong)橋(qiao)(qiao)，主(zhu)拱(gong)(gong)拱(gong)(gong)肋(lei)共68個節段，拱(gong)(gong)圈總計(ji)用鋼(gang)量約5800噸(dun)，大(da)橋(qiao)(qiao)的順(shun)利(li)合(he)龍標志著沿江高(gao)速建設取(qu)得了重(zhong)大(da)進展(zhan)。（央視新聞(wen)）