岷江三号特大桥是眉山环城公路南环线工程项目控制性及重难点工程，起点位于东坡区松江镇中坝村，终点位于东坡区永寿镇永江村。桥梁全长1392m，采用分幅设计，单幅桥宽22.75m，为单箱三室结构，桥面宽度业内罕见。
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历时两年，经过720多个日夜的艰苦奋斗，现在岷江三号特大桥完成左幅全桥贯通，标志着眉山项目关键控制性节点全部打通，整个项目建设也进入最后冲刺阶段。
眉山环城公路南环线项目总工程师邓强告诉我们，眉山岷江三号特大桥项目左幅全桥已经贯通，而右幅也只差最后的2米就能实现全桥合龙了，目前工人们正在紧锣密鼓的施工，争取在11月项目达到通车条件，预计今年年底实现全桥通车的目标。
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