Tunnels are carved out for various reasons like roadways, railways and for water distribution. Many people think how they are done and which ones are on the top list. In this article, you are going to get a list of tunnels, where they are located and for what purpose they are made. The list includes only the continuous tunnels. Given below are the top ten longest tunnel in use.
7. Guangzhou Metro: Line 3.
6. Tunel Emisor Oriente: Water Management in Greater Mexico City.
5. Bolmen Water Tunnel.
4. Orange Fish River Tunnel.
3. Dahuofang Water Tunnel.
2. Paijanne Water Tunnel.
1. Delaware Aqueduct.