Illinois Central elected to upgrade the pole line on a railroad route where microwave was not required. The program included inspection, ground line treatment, and pole reinforcing. An initial sample of 500 poles indicated about 65% of the poles could be retained in service. The entire project took five years to upgrade the 6,000 poles. Osmose Wood Preserving Company was the contractor for the project. Experience over the last two winters resulted in no poles broken due to ice and wind. Generally, the pole line has two cross arms, one for signal circuits and one for communications circuits. Illinois Central is continuing to upgrade this communications line, with communications lines now being transposed for 30 kHz. Upgrading of the pole line is expected to extend its life 10 years.

  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 350
    Bristol, CT  United States  06010
  • Publication Date: 1972-8

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 13-15
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00041133
  • Record Type: Publication
  • Source Agency: Railway System Controls
  • Files: TRIS
  • Created Date: Mar 23 1973 12:00AM