IMMERSED-TUBE CONCRETE TUNNEL SWEEPS ACROSS BALTIMORE HARBOR

The construction of the 8800 ft (2682 m) Fort McHenry Tunnel across the inner harbor in Baltimore City will connect the final remaining gap in Interstate 95 in Maryland. The 5400 ft (1646 m) underwater portion of the tunnel will be constructed with 16 pairs of prefabricated steel-shelled concrete tunnel elements (tubes), each pair of tunnel elements placed side-by-side in the same trench only 10 ft (3 m) apart. Each tunnel element contains two bores which carry two lanes of traffic each, giving a total of eight lanes of traffic. A typical tunnel element, which is 350 ft (107 m) long, 82-1/2 ft (25 m) wide, and 42 ft (13 m) high, will be built on inclined ways in a shipyard, side launched and towed to the site, lowered into position by a special catamaran-type barge, and joined to adjacent tunnel elements with a rubber gasket seal or tremie concrete joint. (Author)

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 40-48
  • Serial:
    • Concrete International
    • Volume: 2
    • Issue Number: 12
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00324327
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 15 1981 12:00AM