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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 Sort ascending Testing Manufacturer Hardware Type Device Description
B-49 NCHRP 350 B.Atwood, Central Fab. Longitudinal Barriers and Bridge Rails Recycled plastic block for use w/ w-beam g.rail
CC-59 NCHRP 350 J.M.Essex, EASI Barrier Terminals and Crash Cushions SAFE STOP Truck Mounted Attenuator (TMA) @ TL-3
CC-56A NCHRP 350 Darryl Durgin, MnDOT Barrier Terminals and Crash Cushions Eccentric Loader Terminal (ELT) @ TL-3
B-52 NCHRP 350 Easi-Set Industries Longitudinal Barriers and Bridge Rails J-J Hooks temp. conc. barrier (NJ & F-shapes)
CC-58 NCHRP 350 Connecticut DOT Barrier Terminals and Crash Cushions Narrow Connecticut Impact Attenuator (NCIAS) @ TL-3
B-51 NCHRP 350 David Bailey-Consource Longitudinal Barriers and Bridge Rails Recycled plastic block for use w/ w-beam g.rail
B-50 NCHRP 350 NE Trans. Consortium Longitudinal Barriers and Bridge Rails NETC 2-Bar (curb mounted) & 4-Bar (sidewalk mounted) Bridge Rails
SS-68D NCHRP 350 X-Cessories Squared Sign Supports, Mailboxes, and Delineator Posts 3-bolt slip base, 10-inch variety
WZ-11 NCHRP 350 Recycled Plastic Products Work Zone Devices Hollow Core Recycled Plastic Barricades
B-29C NCHRP 350 New company name Longitudinal Barriers and Bridge Rails Polylumber Blockouts on Steel Post W-beam