HIGHWAY ACCIDENT REPORT - GATEWAY TRANSPORTATION CO., INC., TRACTOR-SEMITRAILER PENETRATION OF MEDIAN BARRIER AND COLLISION WITH AUTOMOBILE, I-70, ST. LOUIS, MISSOURI, SEPTEMBER 25, 1977

At 8:07 p.m. on Sunday, September 25, 1977, an empty tractor-semitrailer was traveling eastbound on I-70 in downtown St. Louis, Missouri, when the truckdriver lost control of his vehicle on wet concrete pavement. The tractor struck, broke, and overrode a concrete median barrier, vaulted into the westbound lanes, and collided with a westbound automobile. All three occupants in the automobile died; the truckdriver was injured slightly. The National Transportation Safety Board determines that the probable cause of this accident was the loss of tractor-semitrailer control during evasive maneuvers made by the truckdriver in response to improper lane changes by an eastbound automobile driver. Contributing to the severity of the accident were the barrier impact speed and attack angle of the tractor-semitrailer which may have only slightly exceeded the design limits of the functional "New Jersey" concrete barrier.

  • Corporate Authors:

    National Transportation Safety Board

    Bureau of Accident Investigation, 800 Independence Avenue, SW
    Washington, DC  United States  20594
  • Publication Date: 1979-3-22

Media Info

  • Features: References;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00198592
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NTSB-HAR-79-3, HS-026 550
  • Files: HSL, TRIS
  • Created Date: Oct 17 1979 12:00AM