Development and Test of an Optimized MASH TL-4 Concrete Bridge Rail

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

Description: 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. The barrier had a front face with a 3-degree slope (i.e., batter) away from vertical to promote vehicle stability during impacts while also providing some slope to allow for slipforming real-world installations.

Test Level: 4

Barrier Type: Single Slope (10.8 deg)

MASH Test Number: 4-12

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: Nebraska Department of Transportation

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