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,
Evaluation: Full-Scale Crash Testing
Sponsor: Texas Department of Transportation
Test Article Description
Rail Type: W-Beam
Rail Thickness: 10-Gauge
Post Type: W6 x 25
Post Spacing: 6' 3"
Blockout Type: Wood
Special Configuration: NA