526国道岱山段改建项目隧道工程持续推进，北峰隧道主体工程已接近尾声，近日，南峰隧道工程主洞启动开挖工程。
随着山体爆破的完成，大型机械已进场清理土石方。近期，南峰隧道主洞的暗洞工程循环进行着开挖、支护等施工工序。
据介绍，南峰隧道全长291米，其中暗洞部分177米，明洞部分114米，是526国道岱山段改建项目两条隧道工程的其中一条，目前526项目的四工区正集中力量进行南峰隧道的施工建设。
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