project

Pinkerton Tunnel
Press Releases

Historic Pennsylvania Tunnel Reopens with Help From NCFI’s TerraThane Polyurethane Foam

January 26, 2016 rockman Comments Off on Historic Pennsylvania Tunnel Reopens with Help From NCFI’s TerraThane Polyurethane Foam

Pinkerton TunnelMOUNT 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]

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The DeWind one-pass trenching machine
Articles

One-pass trencher installs slurry wall through hard soils

July 2, 2013 Lis Smith Comments Off on One-pass trencher installs slurry wall through hard soils

The DeWind one-pass trenching machine

[Editor] The DeWind One-Pass Trenching company specializes in installing groundwater control or remedial systems underground, under the water table in a single pass. They have been in business for over 25 years and design, build, and operate these specialized one-of-a-kind machines.

In this contributed article by Lis Smith of DeWind, she describes a project to construct a soil/bentonite slurry wall around the perimeter of a site which was once a pre-World War II munitions factory. The groundwater contamination, difficult ground conditions and special project requirements were a perfect application of the DeWind One-Pass Trenching technology. Read on for more about this interesting project and technology. [/Editor]

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