REHABILITATION OF AMTRAK BALTIMORE AND POTOMAC RAILROAD TUNNEL IN BALTIMORE, MARYLAND

Rehabilitation of the National Railroad Passenger Corporation (Amtrak) Baltimore and Potomac (B&P) Railroad Tunnel in Baltimore, Maryland, built between 1871 and 1873, was undertaken by Amtrak and funded by the Northeast Corridor Improvement Project (NECIP). Planning of the project was undertaken jointly by Amtrak, FRA, and De Leuw, Cather/Parsons and Associates (DCP). Construction management services were provided by DCP. The tunnel rehabilitation effort, planned improvements, and problems encountered and action taken to overcome them are described. The double-track tunnel is a vital link in the Washington to New York freight and passenger main line and its deteriorated condition made its rehabilitation a primary goal of NECIP. After field inspections and engineering analyses were completed, the repairs agreed on were to (a) rehabilitate the existing invert, (b) repair the tunnel lining, (c) rebuild the gunite casing of the arch and walls, (d) install 140-lb continuous welded rail, (e) install a new gantlet track, (f) grout the invert, and (g) clean and improve the drainage system. The work was designed to be accomplished by contractor forces and Amtrak employees. To date three new sumps have been installed. Work on one track has been completed and work on the second track was scheduled to begin early in 1983.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/939/939-006.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=REHABILITATION+OF+AMTRAK+BALTIMORE+AND+POTOMAC+RAILROAD+TUNNEL+IN+BALTIMORE%2C+MARYLAND&author=R.+Howell&publication_year=1983
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Track Structure System Design.Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Howell, Richard P
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; Maps; Photos;
• Pagination: pp 31-34
• Monograph Title: Track design and railroad electrification
• Serial:
  • Transportation Research Record
  • Issue Number: 939
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Concrete slab track; Drainage; Driver rehabilitation; Floors; Maintenance; Tunnel lining; Tunnels
• Identifier Terms: Amtrak
• Uncontrolled Terms: Rehabilitation
• Geographic Terms: Baltimore (Maryland); Northeast Corridor; Northeastern United States
• Old TRIS Terms: Tunnel inverts; Tunnel maintenance
• Subject Areas: Bridges and other structures; Highways; Hydraulics and Hydrology; Maintenance and Preservation; Public Transportation;

Filing Info

• Accession Number: 00391596
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jan 30 1985 12:00AM