Shahristan Tunnel is the controlling project of Tadzhikistan-Uzbekistan Road Rehabilitation Project. The main tunnel is 5,253m long and the pilot tunnel is 5,286m long.
The tunnel project is the first underwater tunnel in Bangladesh. The implementation of it will greatly increase the connectivity between the Chittagong municipal centers with the east heavy industry area and ease the population pressure in the city area, so as to achieve a balanced economy development under the goal of “one city, two towns”.
The Second longest tunnel of Zunchong expressway. Single tunnel is 3632m in length, maximum bury depth is 490m, total length of the two tunnels is 8252m. It started in July 2002, completed in June 2005.
The tunnel project is the first underwater tunnel in Bangladesh. The implementation of it will greatly increase the connectivity between the Chittagong municipal centers with the east heavy industry area and ease the population pressure in the city area, so as to achieve a balanced economy development under the goal of “one city, two towns”.
Chengde-Chifeng Expressway is an important component of Daqing-Guangzhou Highway in the National Expressway Network Plan, and also the first green ecological road crossing all the national natural reserves.
It is the first expressway tunnel constructed in China. The maximum bury depth is 600m, 10.5m in width, 5m in height. Total length of left and right tunnel is 10395m. It started in Oct. 2001, and completed in 2004.