MASH Test 4-12 on T2P Retrofit Bridge Rail

Report Number(s): 0-7086-R5

Description: The test installation was 124 ft long and consisted of three steel rails attached to steel posts, which were mounted on a cantilevered reinforced concrete deck and curb. The deck was 6 inches thick, and the curb was 9 inches tall. The top rail was a hollow structural section (HSS) 4½-inch-diameter section, and the two lower rails were HSS rectangular sections, 2 inches tall and 6 inches wide. Internal rail sleeves measuring 28 inches long were centered at each rail splice. The distance from the top of the deck to the top of each rail was 18 inches, 28 inches, and 42 inches. The posts were fabricated from ¾-inch-thick plates. They were spaced at 96-inch centers, and each was secured to the deck by four ⅞-inch-diameter bolts that were cast in the concrete.

Test Level: 4

Barrier Type: Steel Bridge Rail

MASH Test Number: 4-12

Proprietary/Non-proprietary: Proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: TxDOT & FHWA