Description

The Qinling Zhongnanshan Road Tunnel is an engineering marvel, recognized as the longest highway twin mountain tunnel globally. Spanning an impressive 18.4 kilometers, this tunnel, completed on June 30, 2007, significantly enhances transportation efficiency across challenging mountainous terrain. Construction began in 2002, and the project was a remarkable feat, with CREC independently handling 49% of the work. This tunnel not only serves as a vital link for vehicular traffic but also represents a significant achievement in modern civil engineering.

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