MOUNT AIRY, NC—A $2 million tunnel construction project on the Great Alleghany Passage (GAP) is reopened to the public with help from a geotechnical polyurethane foam called TerraThane, by US company, NCFI Polyurethanes.
The GAP rail-trail is 150 miles of hiking and biking between Cumberland, Md, and Pittsburgh, Pa. created along the former railway line. In Cumberland, the GAP joins the C&O Canal Towpath, creating a continuous 335-mile long trail experience all the way to Washington, DC. It’s become a favorite biking destination for people from around the Mid-Atlantic states. One of its main tunnels, the Pinkerton Tunnel, an 849-foot former Western Maryland Railway tunnel, has been closed since 1975 due to erosion and unstable conditions. The Allegheny Trail Alliance, the organization that built and now maintains the 150-mile GAP, and the Somerset County Rails-to-Trails Association (SCRTA), wanted the tunnel reopened and helped fund the project.
[Editor] Click through for the rest of the press release from GeoPrac sponsor, NCFI Polyurethanes (makers of TerraThane). [/Editor]
The 2-year process of excavating the 3,389 foot long fourth bore of CALTRANS’ Caldecott Tunnel is nearly complete. The tunnel is anticipated to be put into service in 2013 to help relieve a major traffic […]
Constructed in 1931 by the Illinois Terminal Railroad, the Tucker Tunnel is located underneath Terminal Boulevard in downtown St. Louis. Over the years, the tunnel condition has deteriorated and the concern is that the failure […]
Copyright © 2007-2020 by Randy Post
