TEST LEVEL 4 EVALUATION OF THE MINNESOTA COMBINATION BRIDGE RAIL. FINAL REPORT

A safety performance evaluation of the Minnesota concrete parapet with brush curb and metal rail (Minnesota Combination Bridge Rail) was conducted for the Minnesota Department of Transportation (Mn/DOT) as part of Year 4 of the Midwest States Regional Pooled Fund Program. The safety performance evaluation of this bridge rail system was conducted and reported according to the criteria specified in Test Level 4 of the National Cooperative Highway Research Program (NCHRP) Report No. 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features". This testing involved impacts with an 8000-kg single-unit truck, a 2000-kg pickup truck, and an 820-kg small car. The bridge rail design was modified following the 2000-kg pickup truck test in order to reduce the potential for snagging. After this modification was made, and the system was retested, the safety performance of this system was found to be acceptable and meets the safety standards set forth in Test Level 4 of NCHRP 350.

  • Supplemental Notes:
    • This study was funded by the Midwest States Regional Pooled Fund Program and the Center for Infrastructure Research, University of Nebraska, Lincoln.
  • Corporate Authors:

    University of Nebraska, Lincoln

    Midwest Roadside Safety Facility
    2200 Vine Street, Whittier Building
    Lincoln, NE  United States  68583-0853

    Minnesota Department of Transportation

    Transportation Building, 395 John Ireland Boulevard
    St Paul, MN  United States  55155
  • Authors:
    • Pfeifer, B G
    • Holloway, J C
    • Faller, R K
    • Rosson, B T
  • Publication Date: 1996-3

Language

  • English

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 95 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00720311
  • Record Type: Publication
  • Report/Paper Numbers: TRP-03-53-96, MN/RC-96/08
  • Files: TRIS, STATEDOT
  • Created Date: Apr 29 1996 12:00AM