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FHWA Highway Safety Programs

Archived Hardware Eligibility Letters – NCHRP 350

These letters are archived and are posted for "historical and research purposes only" per the sunset dates in the AASHTO/FHWA Joint Implementation Agreement and exceptions to these dates as posted on the AASHTO Committee on Design website.

Letter Date Testing Manufacturer Hardware Type Device Description
B-148 NCHRP 350 Trinity Longitudinal Barriers and Bridge Rails T-39 Thrie-beam guardrail @ TL-4
CC-64G NCHRP 350 Impact Absortion, Inc Barrier Terminals and Crash Cushions UMAD TMA modification
B-149 NCHRP 350 Battelle Memorial Institute Longitudinal Barriers and Bridge Rails 50-inch tall NJ barrier @ TL-3
SS-134 NCHRP 350 Xcessories Squared Sign Supports, Mailboxes, and Delineator Posts "Redi-Torque" Model 280 Hardware Kit
B-82B1 NCHRP 350 Brifen Longitudinal Barriers and Bridge Rails Brifen WRSF on 1V:4H slope
WZ-239 NCHRP 350 Quality Restoration Services Work Zone Devices QRS Vertical Sign Stand
B-141B NCHRP 350 Trinity Longitudinal Barriers and Bridge Rails TL-3 CASS w/ 32.5-foot post spacing
CC-73C NCHRP 350 Energy Absorption Systems, Inc. Barrier Terminals and Crash Cushions TL-1 Wide REACT
B-147 NCHRP 350 Various Longitudinal Barriers and Bridge Rails Cable to Metal-beam guardrail transitions
WZ-236 NCHRP 350 Trafficade Service Work Zone Devices HD 3612 Sign Stand