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Baoding No. 2 Tunnel
Pubdate :2025-05-23
The Baoding No. 2 Tunnel is a key control project of the Panzhihua-Dali Expressway (Panzhihua-Dali), with a total length of approximately 8.775 kilometers. It is one of the longest gas outburst tunnels on expressways under construction in China. The construction is highly challenging and risky, and it has set several "national records".
