Can we use 42in F shape barrier with the anchor tested for 32in barrier?

#9532 January 24, 2023 Alex Lim ( [email protected]) Oregon
Work Zone Traffic Control Devices > Portable Barriers

Can we use 42in F shape barrier with the anchor tested for 32in barrier? Any concern?

42in Tall Barrier
https://www.oregon.gov/odot/engineering/202207/RD545.pdf

Anchor with b258 letter for temporary application tested with 32in F shape barrier
https://safety.fhwa.dot.gov/roadway_dept/countermeasures/reduce_crash_severity/barriers/pdf/b258.pdf

8 comments

  1. Nauman Sheikh ( )

    Taller 42-inch barrier height can result in greater load from the impacting vehicle and cause greater lateral moment in the anchorage. In a recent small car test with an anchored tall F-shape barrier, the vehicle was contained and redirected, but it rolled over. Due to these concerns, the 42-inch barrier with the anchorage of the previously tested 32-inch tall barrier should be crash tested to determine its MASH compliance.

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