近日，福建（南）靖永（定）高速公路A1合同段高头隧道右线顺利贯通，标志着A1合同段隧道全线贯通，为项目今年年底通车奠定了基础。
高头隧道右线全长822米，开挖跨度13.5米，最大埋深86米，施工环境复杂。项目部克服了洞口偏压、富水带、围岩裂隙发育等不良地质影响，顺利完成节点目标。
据悉，靖永高速公路是连接闽西南经济协作区及粤港澳大湾区的重要通道。截至6月底，项目累计完成投资约39.2亿元，占概算总投资的78.6%；路基土石方基本完成，涵洞工程全部完成，隧道开挖完成21公里，占设计总量的95%。
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