Jeddo Tunnel

The Jeddo Tunnel (also called the Jeddo Mine Tunnel) is a drainage tunnel at water level in Pennsylvania. It is one of the Coal Region's biggest discharges of mine water. The tunnel is five miles (eight kilometers) long and was constructed between 1891 and 1894, and at the time of its construction, was reputed to be the largest mine drainage tunnel in the world. It consists of major tunnels A and B, and minor tunnels C, D and X.

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Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

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