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Accident Report Detail

Multiple Vehicle Collision in a Construction Zone U.S. Interstate 80

Executive Summary

‚ÄčAbout 6:25 a.m., on August 22, 1979, a westbound tractor-semitrailer sideswiped an eastbound tractor-semitrailer and then struck an eastbound motor home in a two-lane, undivided roadway in a construction zone on Interstate 80 about 30 miles northwest of Laramie, Wyoming. The driver and codriver of the westbound tractor-semitrailer were killed. Six of the seven persons in the motor home were ejected and killed; one person was partially ejected and seriously injured. The two persons in the eastbound tractor-semitrailer were not injured.

Probable Cause

‚ÄčThe National Transportation Safety Board determines that the probable cause of this accident was the failure of the fatigued driver of the westbound truck to maintain his vehicle within the proper traffic lane. Contributing to the severity of the accident was the excessive speed of the westbound truck.

Accident Location: Laramie , WY    
Accident Date: 8/22/1979
Accident ID: 79875

Date Adopted: 2/7/1980
NTSB Number: HAR-80-01
NTIS Number: PB80-148794

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