5 Longest Tunnels By Length In The World (In Meter)
| S. No. | Name | Country | Length |
|---|---|---|---|
| 1. | Delaware Aqueduct | New York State, United States | 137,000 m |
| 2. | Päijänne Water Tunnel | Southern Finland, Finland | 120,000 m |
| 3. | Dahuofang Water Tunnel | Liaoning, China | 85,320 m |
| 4. | Orange–Fish River Tunnel | South Africa | 282,800 m |
| 5. | Bolmen Water Tunnel | Kronoberg/Scania, Sweden | 82,000 m |
Source: Wikipedia