DEVELOPMENT AND EVALUATION OF MASH TL-4 GUARDRAIL SYSTEM

Report Number(s): FHWA/TX-21/0-7019-R1

Description: The MASH TL-4 guardrail installation consisted of a 10-gauge W-beam rail and a rectangular HSS tube rail attached to W6×25 wide flange steel posts. The height of the top of the HSS tube was 40 inches, and the height to the top of the W-beam rail was 27 inches. The height to the top of the wide flange posts was 38.5 inches. The wide flange steel posts were spaced 75 inches apart.

Test Level: 4

MASH Test Number: 4-10, 4-11, 4-12,

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: Texas Department of Transportation