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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-146 NCHRP 350 New England Transp. Consort. Longitudinal Barriers and Bridge Rails Transitions for 3 NETC bridge rails
B-150B NCHRP 350 Gregory Highway Products Longitudinal Barriers and Bridge Rails GMS Barrier with 12 ft 6 inch post spacing
B-179 NCHRP 350 Energy Absorption, Inc Longitudinal Barriers and Bridge Rails TL-1 Triton Water Filled Barrier
B-175 NCHRP 350 MWRSF Longitudinal Barriers and Bridge Rails MGS with round DougFir, PonderosaPine, SYPine
B-176 NCHRP 350 Hill and Smith Longitudinal Barriers and Bridge Rails Zonguard portable steel barrier
B-162B NCHRP 350 NUCOR MARION Steel Longitudinal Barriers and Bridge Rails N/A
WZ-244 NCHRP 350 Plastic Safety Systems Work Zone Devices Updates to previously issued acceptance letters
CC-101 NCHRP 350 Texas Transportation Institute Barrier Terminals and Crash Cushions 27-inch high Steel Post Slotted Rail Terminal (SRT-27SP)
B-165 NCHRP 350 Malcolm H. Ray Longitudinal Barriers and Bridge Rails MDS-4 and MDS-5 Steel Barriers
CC-88A NCHRP 350 MWRSF Barrier Terminals and Crash Cushions SKT & FLEAT with wood posts