MASH 2016 Evaluation of the Modified Thrie Beam System
Report Number(s): TRP-03-417-20
The test installation for 3-11 consisted of a 176-ft – 9/16-in. long modified thrie beam guardrail supported by 29 posts. Design details for test no. MTB-1 are shown in Figure 11 through Figure 23. W6x8.5 posts fabricated from A36 steel were selected for the tested system. The test installation for 3-10 consisted of a 176-ft – ½-in. long, dual-sided modified thrie beam guardrail supported by 33 posts.
Test Level: 3
System Type: Both single-sided roadside configuration and dual-sided median configuration.
MASH Test Number: 3-10, 3-11
Evaluation: Full-Scale Crash Testing
Sponsor: New Jersey Department of Transportation
Test Article Description
Rail Type: Thrie Beam
Rail Thickness: 12-Gauge
Post Type: W6 x 8.5
Post Spacing: 6' 3"
Blockout Type: Steel
Special Configuration: Single-sided roadside configuration and a dual-sided median configuration