Your IP: United States Near: Cambridge, Massachusetts, United States

Lookup IP Information

Previous 1 2 3 4 5 6 7 8 Next

Below is the list of all allocated IP address in - network range, sorted by latency.

Logans Ferry Mine Tunnel Carries formerly served mine carts Crosses Allegheny River Locale Plum and Springdale, Pennsylvania, United States Design twin tunnels Longest span 3,000 feet (910 m) Opened 1921 Coordinates 40°32′42″N 79°45′50″W / 40.5450°N 79.7640°W / 40.5450; -79.7640Coordinates: 40°32′42″N 79°45′50″W / 40.5450°N 79.7640°W / 40.5450; -79.7640 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. History In 1919, West Penn Power acquired the land to build a power facility in Springdale, but did not have an adequate coal source. As a result, they leased coal-rich land on the opposite shore of the river. To simplify transport issues, the decision was made to build the mine tunnel, which opened in 1921. By the 1940s, the mine's resources started to be depleted and West Penn, which had constructed the neighborhood of Logan Heights (which today looks unlike most of the 1960s-or-later suburban stock that dominates Plum), transformed from being a company town to a community of homeowners. In 1954, the mine transferred most of its operations 4 miles (6.4 km) west to Upper Burrell (the former mine site remains a somewhat rural bluff in the midst of suburbia), but continued to use the tunnel. However, in 1968, the mine was closed permanently, and the tunnels are presumed to be currently flooded. References This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2010)  Crossings of the Allegheny River Upstream C.L. Schmitt Bridge Logans Ferry Mine Tunnel Downstream Bessemer & Lake Erie Railroad Bridge Canadian National Railway Bessemer and Lake Erie Railroad branch This Pittsburgh-related article is a stub. You can help Wikipedia by expanding it.v · d · e