Safety performance evaluation of weak-post, w-beam guardrail attached to culvert.

Schneider, Allison J.; Rosenbaugh, Scott; Faller, Ronald K.; Sicking, Dean L.; Lechtenberg, Karla A.; Reid, John D.; Midwest Roadside Safety Facility

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Safety performance evaluation of weak-post, w-beam guardrail attached to culvert.

2014-02-01
By Schneider, Allison J. ; Rosenbaugh, Scott ; Faller, Ronald K. ; ...

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Creators:

Schneider, Allison J. ; Rosenbaugh, Scott ; Faller, Ronald K. ; Sicking, Dean L. ; Lechtenberg, Karla A. ; ... More +

Schneider, Allison J. ; Rosenbaugh, Scott ; Faller, Ronald K. ; Sicking, Dean L. ; Lechtenberg, Karla A. ; Reid, John D. Less -
Corporate Creators:

Midwest Roadside Safety Facility
Corporate Contributors:

Nebraska. Dept. of Roads ; United States. Federal Highway Administration

Nebraska. Dept. of Roads ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Beams Bending Concrete Culverts Dynamic Tests Guardrails Highway Safety Impact Tests Posts
Publication/ Report Number:

TRP-03-277-14
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Midwest States Regional Pooled Fund Program
Abstract:

A new W-beam guardrail system for use on low-fill culverts was developed and evaluated. The system was adapted from

the MGS bridge railing for attachment to the outside face of culvert headwalls. Four attachment concepts were developed

and evaluated through dynamic component testing. Both lateral and longitudinal impacts were conducted on the design

concepts while mounted to a simulated concrete culvert headwall. The resulting damage from each test was confined to post

bending only. Although all four designs prevented damage to the socket assembly and culvert headwall, the top-mounted,

single-anchor design and the side-mounted design were recommended for use based on ease of fabrication and installation.

The new weak-post, W-beam guardrail system for attachment to low-fill culverts was designed with multiple advantages

over current culvert treatments. The guardrail system is mounted to the outside face of the headwall, thereby minimizing

intrusion over the culvert and maximizing the traversable roadway width. The barrier has an unrestricted system length and

does not require a transition when attached to standard MGS. Additionally, the attachment configurations were designed

utilizing epoxy anchors, enabling the system to be installed on new or existing culverts. Finally, implementation guidance

was provided for new system installations.
Format:

PDF
Funding:

TPF-5(193) Supplement #32
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:ab3702860b25984f3535c51b3cc0522a4abd600d19540ecb1c6e80a81bf19a12
Download URL:

https://rosap.ntl.bts.gov/view/dot/27243/dot_27243_DS1.pdf
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Safety performance evaluation of weak-post, w-beam guardrail attached to culvert.

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