Water Tunnels
| Name | Location | Length in km (mi) | Year Completed | Notes |
|---|---|---|---|---|
| Thirlmere Aqueduct | North West England, United Kingdom | 154 (96) | 1925 | Water supply from Thirlmere to Manchester. Longest tunnel in the world (of any type). |
| Delaware Aqueduct | New York, United States | 137 (85) | 1945 | Water supply. Drilled through solid rock. |
| Päijänne Water Tunnel | Southern Finland, Finland | 120.0 (74.6) | 1982 | Water supply (16 m2 cross section). |
| Orange–Fish River Tunnel | South Africa | 82.8 (51.4) | 1975 | Irrigation. (22.5 m2 cross section) |
| Bolmen Water Tunnel | Kronoberg/Scania, Sweden | 82.0 (51.0) | 1987 | Water supply, 8 m2. |
| Želivka Water Tunnel | Central Bohemian Region, Czech Republic | 51.075 (31.7) | 1972 | Water supply, 5 m² |
| Arpa-Sevan Tunnel | Armenia | 48.3 km (30.0 mi) | 1981 | Water supply. |
| Kárahnjúkar Hydroelectric Powerplant | Austurland, Iceland | 39.7 km (24.7 mi) | 2003-2007 | Hydroelectric. 7.2-7.6 meters in diameter. Part of a wider complex of tunnels that are 72 kilometers in length combined |
| Quabbin Aqueduct | Massachusetts, United States | 39.6 (24.6) | 1905 | Water supply. |
| Şanlıurfa Irrigation Tunnels | Turkey | 26.4 km (16.4 mi) | 2005 | Irrigation. |
| Gilgel Gibe II Power Station headrace tunnel | Ethiopia | 26.0 km (16.2 mi) | 2005-2009 | Hydroelectric. Tunnel partially collapsed, under repair until October 2010. |
| Vorotan-Arpa Tunnel | Armenia | 21.7 km (13.5 mi) | 2004 | Water supply. |
| Dangara Irrigation Tunnel | Nurek, Tajikistan | 14.8 km (9.2 mi) | 1987 | Irrigation. |
Note: There are buried oil and gas pipelines of longer length.
Read more about this topic: List Of Long Tunnels By Type
Famous quotes containing the word water:
“We were uncertain whether the water floated the land, or the land held the water in its bosom. It was such a season, in short, as that in which one of our Concord poets sailed on its stream, and sung its quiet glories.”
—Henry David Thoreau (1817–1862)