CSX National Gateway Initiative, Phase 2
The project was part of a larger program designed to improve the flow and efficiency of rail traffic by increasing the use of double-stack trains across the country. The project team designed and built 11 different clearance improvements along 92 miles of track from Jessup, MD, through Washington D.C., and west to Martinsburg, WV and reviewed ways to remove obstructions on existing active lines that prevent the use of double-stack intermodal trains. The project included lowering and realigning tracks, raising bridges, and blasting and re-lining tunnel crowns to clear trackway.
One of the most challenging components of the project was re-lining the 920-foot-long Harpers Ferry Tunnel, a 120-year-old passageway that connects Harpers Ferry National Historical Park and the Chesapeake and Ohio Canal National Historical Park. Up to 50 passenger and freight trains pass through the tunnel each day. The team removed the portal cap and lining, then re-lined the tunnel for improved clearance.