Spread Tube Sign Support on Concrete Median Barrier

Report Number(s): 0-6646-1

Description: The sign post is a standard 2.5-inch diameter Schedule 80 post. The post is mounted inside a 6-inch long, 3-inch diameter schedule 40 pipe that is built inside a 6-inch wide × 2-inch deep × ¼-inch thick steel tubing. The post is secured to the pipe using a ½-inch diameter through bolt. The steel tubing is 48 inches long with a 45-degree taper at each end and fixed to the top of the concrete barrier using four 8-inch long, ¾-inch diameter anchor rods.

Test Level: 3

Barrier Type: New Jersey

Barrier Type: Cast-in-place

MASH Test Number: 3-11

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Testing + Engineering Analysis

Sponsor: Texas Department of Transportation & Federal Highway Association