Serb Guardrail : South Ashland Interchange California State Line Section Pacific Highway (Interstate 5) Jackson County, Oregon : final report.
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Serb Guardrail : South Ashland Interchange California State Line Section Pacific Highway (Interstate 5) Jackson County, Oregon : final report.

Filetype[PDF-1.32 MB]


English
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Details:

  • Alternative Title:
    Serb Guardrail : South Ashland Interchange California State Line Section Pacific Highway (Interstate 5) Jackson County, Oregon.
  • Creators:
    Brooks, Eric W.
  • Corporate Creators:
    Oregon. Dept. of Transportation. Research Unit
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    OR-RD-97-04
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Oregon
  • Corporate Publisher:
    Oregon. Dept. of Transportation. Research Unit
  • Abstract:
    The Self Restoring Barrier (SERB) is a proprietary guardrail unit comprised of a single tubular thrie beam held outward from the supporting wooden posts by pivoting metal arms, its height above the ground secured by short cables attached to the top of the wooden posts. Two SERB guardrail systems were installed on the Pacific Highway (Interstate 5) in southern Oregon as part of an Experimental Features Project for the Oregon Department of Transportation (ODOT). The SERB guardrails were placed along the same alignment as the previous standard guardrail. The SERB guardrail is designed to redirect vehicles (including larger vehicles) when struck, yet requires little or no maintenance after being struck by smaller vehicles. During the three years of in-service performance, the SERB guardrails experienced some damage to the rail, and were not repaired. A problem with the lag screw that connects the support cable to the guardrail post was found: the lag screw had been slipping from the weight of the thrie beam, allowing the guardrails to sag. However, the guardrails were still functional in 90% of the length of installation. The local maintenance district opted to remove the SERB in July of 1993. Reasons cited for removal included high costs, manpower, and traffic control in a dangerous work zone. This final report covers the three evaluation and removals of the SERB guardrails.
  • Format:
    PDF
  • Funding:
    Exp. Feat. #OR 88-02
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