MASH TL-4 Testing and Evaluation of Free-Standing Single Slope Concrete Barrier with Cross-Bolt Connection

Report Number(s): TRNo. 0-6968-R5

Description: The installation consisted of seven 30-ft long by 42-inch tall reinforced concrete barrier segments, each 8 inches wide at top and tapering on each side to 24 inches wide at the bottom. The total installation length of the barrier test installation was 210 ft. These barrier segments were placed free-standing on an existing concrete apron without any restraints. Adjacent barrier segments were connected to each other using the cross-bolt connection, which was comprised of two ⅞-inch diameter threaded rods that passed through each segment in an X pattern, restrained on each end with hex nuts and plate washers.

Test Level: 4

MASH Test Number: 4-12

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Testing + Engineering Analysis

Sponsor: Texas Department of Transportation & Federal Highway Association