The Logans Ferry Mine Tunnel consists of a pair of abandoned coal tunnels under the Allegheny River between Plum and Springdale, Pennsylvania in the United States.

2023年3月1日 · this old map shows us where these under river tunnels are. THEY RUN FROM THE AREA OF LOGANS FERRY HEIGHTS IN PLUM BOROUGH, RIGHT TO THE OLD …

2022年7月13日 · Instead of building a railroad-only bridge across the Allegheny River or acquiring a fleet of barges, Lynn decided to drill a tunnel — actually twin tunnels — one to transport …

2024年6月24日 · Yes, the Logans Ferry Mine Tunnel is a pair of abandoned coal tunnels that run under the Allegheny River between Plum and Springdale, Pennsylvania. How many tunnels …

2024年6月21日 · Yes, the Logans Ferry Mine Tunnel is an abandoned coal tunnel that runs under the Allegheny River between Plum and Springdale, Pennsylvania. Does the T in Pittsburgh go …

2024年6月27日 · Is there a tunnel under the Allegheny River? Yes, the Logans Ferry Mine Tunnel consists of a pair of abandoned coal tunnels under the Allegheny River between Plum and …

The Pittsburgh and Castle Shannon Tunnel, also known as the Mount Washington Coal Tunnel, was a 3 ft 4 in (1,016 mm) narrow-gauge railway tunnel under Mt. Washington.

2016年2月29日 · Photos, data and history for bridge and tunnel structures in Allegheny County and Pittsburgh, Pennsylvania.

Allegheny-Pittsburgh Coal Co. opened the Springdale mine in 1919. It supplied coal to the West Penn Power Company power plant at Springdale, Pa. on the other side of the river. Coal was …

2010年8月30日 · The Keeling mine is just one of many mines that were excavated for coal in the South Hills outside of Pittsburgh, but an extensive underground tunnel makes it stand out from …