Development and Testing of an Optimized MASH TL-4 Bridge Rail

Report Number(s): TRP-03-415-21


A new concrete bridge rail was developed and optimized using MASH Test-Level 4 design loads. The rail was optimized to maximize vehicle stability, minimize installation costs, and mitigate the potential for deck damage by minimizing loads transferred to the deck. Additionally, the bridge rail was designed with a 39 in installation height so that it would remain crashworthy after future roadway overlays up to 3 in thick.

Test Level: 4

Barrier Type: Concrete Post and Beam

MASH Test Number: 4-12

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: Midwest Pooled Fund Program

Test Article Description

Height: 39"

Deck Thickness: 8"

Test Article Description

Material: Concrete

Mounting Type: Deck

Aesthetic: No

See Through: No

Retrofit: No

Combo. (Veh/Ped): No