Thrie/W-Beam/Tubular Barrier Gap Rail for MASH TL-3 (610461/T4541-CZ)

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Final Report Link: Thrie/W-Beam/Tubular Barrier Gap Rail for MASH TL-3


TTI Research Supervisor:

William F. Williams, P. E.

Associate Research Engineer

Texas A&M Transportation Institute

TAMU 3135

College Station, Texas 77843-3135

(979) 317-2707

[email protected]

  Pooled Fund Technical Representative:

Michael Elle, P.E.

Design Standards Engineer

Minnesota Department of Highways

395 John Ireland Blvd,

MS696 St. Paul, MN  55155-1899

(651) 366-4622

[email protected]



American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) Test 3-10 was preformed on the Tubular Barrier Gap Rail as reported herein. (1). The test was not successful with respect to the MASH Test 3-10 criteria. Therefore, the design is not acceptable with respoect to MASH specifications.

2024-05-28 (May 28)