肇(zhao)庆大桥，是西(xi)江最大的桥。工(gong)(gong)程路线全长(zhang)7.8km，桥梁(liang)长(zhang)2.5km，总投(tou)资4.58亿元，施工(gong)(gong)工(gong)(gong)期两年半。大桥通航孔为雄伟(wei)的四孔136m预应(ying)力单(dan)箱(xiang)连续梁(liang)（箱(xiang)宽22m为国内之最）。