NTSB makes safety recommendations to AASHTO.
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Press Release Summary:
According to NTSB, American Association of State Highway and Transportation Officials should work with FHA to establish performance and selection guidelines for bridge owners to use to develop objective warrants for high-performance Test Level Four, Five, and Six bridge railings applicable to new construction and rehabilitation projects where railing replacement is determined to be appropriate. Guidelines should be included in LRFD Bridge Design Specifications.
Original Press Release:
NTSB Safety Recommendations H-09-25 and -26
The NTSB makes the following recommendations to the American Association of State Highway and Transportation Officials:
Work with the Federal Highway Administration to establish performance and selection guidelines for bridge owners to use to develop objective warrants for high-performance Test Level Four, Five, and Six bridge railings applicable to new construction and rehabilitation projects where railing replacement is determined to be appropriate, and include the guidelines in the Load and Resistance Factor Design (LRFD) Bridge Design Specifications. (H-09-25)
Revise section 13 of the Load and Resistance Factor Design (LRFD) Bridge Design Specifications to state that bridge owners shall develop objective warrants for the selection and use of high-performance Test Level Four, Five, and Six bridge railings applicable to new construction and rehabilitation projects where railing replacement is determined to be appropriate. (H-09-26)
