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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.〔
==Description==
The Jeddo Tunnel drains four large coal basins over an area of close to . It also drained the collieries of G.B. Markle & Company. On average the tunnel drains of water each minute.〔 Sometimes the tunnel drains up to 100,000 gallons per minute.〔.〕 The tunnel is about 5 miles (8 kilometers) long and runs between Black Creek and the hills in Butler Valley. It is . The Jeddo Tunnel is located close to the community of Drums.〔 The tunnel drains the nine major minepools in the area via gravity.〔
The Jeddo Tunnel drains the mines in 13 nearby communities. These communities are Hollywood, Lattimer, Minesville, Drifton, Harleigh, Sandy Run, Ebervale, Humboldt, Cranberry, Harwood, Stockton, and the Eckley Miners' Village.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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