There is a Roanoke Times newspaper story about the work currently being done to enlarge Cowan Tunnel, located between mileposts N305 and N306 just west of Walton, VA. Since the east end of the tunnel connects directly with a bridge over New River, lowering the tracks was not a viable option.
http://www.roanoke.com/news/nrv/wb/151577
Here's a direct link to the video showing how the work is being done.
http://link.brightcove.com/services/lin ... 1425899232
http://www.roanoke.com/news/nrv/wb/151577
Here's a direct link to the video showing how the work is being done.
http://link.brightcove.com/services/lin ... 1425899232
