31” W-beam to 31” Thrie-beam Transition

Report Number(s): TRP-03-210-10

Description: Stiffness Transition from steel post MGS with 12-inch deep blockouts to thrie-beam approach using asymmetrical “Y.”

Test Level: 3

Eligibility Letter: B231

System Type: Guardrail to Guardrail

MASH Test Number: 3-20, 3-21

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: Midwest States Regional Pooled Fund Program

Test Article Description

Transition Type: Stiffness Transition

Nested: Yes

Rubrail: No

Rubrail Nested: No

Height: 31"

Post Material: Steel

Top Rail Blockout Depth: 12"

Curb Present: No


MWTSP-2 FHWA Eligibility Letter B231 acrobat-icon