Bangabandhu Sheikh Mujibur Rahman Tunnel In Bangladesh

A view of Bangabandhu Sheikh Mujibur Rahman Tunnel on November 25, 2022. Bangabandhu Sheikh Mujibur Rahman Tunnel (or Karnaphuli Tunnel) is an under-construction underwater expressway tunnel in the port city of Chittagong, Bangladesh under the Karnaphuli river. The length of the entire route is 9.39 kilometers (5.83 mi), with the tunnel making up 3.32 kilometers (2.06 mi) of the length. The tunnel diameter will be 10.80 meters (35.4 ft). The project's cost is estimated at US$1.1B, of which the Exim Bank of China finances around half. The tunnel will be the first under-river road tunnel in South Asia.