Hoosac Tunnel, completed in 1875, is vital to the Boston and Maine since the bulk of their freight moves through the tunnel. Most of the 4.75 mile tunnel is through solid rock, but about 8,000 feet is through soft rock that was lined with a brick arch. Since the 1950, maintenance has increased on the soft rock portion of the tunnel. A sudden rock fall closed the tunnel. The rock fall was removed, a patch installed and grouted, and the line back in service in just six days. Over the past 10 years, the deteriorating brick arch has been gradually lined with corrugated steel liner plate, and the space behind the plate has been grouted. Last month an additional 54 feet of liner plate was installed to virtually eliminate maintenance problems.

  • Availability:
  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 350
    Bristol, CT  United States  06010
  • Publication Date: 1973-1-8

Media Info

  • Features: Photos;
  • Pagination: p. 31-33
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00041322
  • Record Type: Publication
  • Source Agency: Railway Age
  • Files: TRIS
  • Created Date: Apr 2 1973 12:00AM