How long is the Zhangtai Expressway Tunnel?

1727m. The total length of Zhangtai Expressway Tunnel is1.727m.. Lijiaping Tunnel of Zhangtai Expressway is located in Zhangjiakou Village, Huanghua Township, Yiling District, Yichang City, Hubei Province. This area belongs to the hilly landform of erosion and dissolution, and the terrain fluctuates greatly. The mountain at the entrance of the tunnel is steep, the slope is almost vertical, and the local slope is inverted. The steep cliff above the design elevation at the entrance of the tunnel is about 75 meters high, and the top of the slope is in a stepped landform, which was formed after the unloading crack cut the block and collapsed.