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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-248 NCHRP 350 Trinity Highway Products, LLC Longitudinal Barriers and Bridge Rails Modified Thrie Beam Blockout
WZ-330 NCHRP 350 Plasticade Products Work Zone Devices Type III Barricades with Angle Iron frame
WZ-331 NCHRP 350 Plasticade Products Work Zone Devices Type III Barricades with Telespar frame
WZ-326 NCHRP 350 Plasticade Work Zone Devices SafetyCade Type II Barricade and SafetyCade Extended
CC-120B NCHRP 350 Barrier Systems Inc. Barrier Terminals and Crash Cushions X-Lite Tangent and X-Lite Flared Soil Plate Modification
WZ-324 NCHRP 350 Bone Signs Work Zone Devices SZ-412 X-Footprint Sign Stand with Modified Mast
SS-115A NCHRP 350 Trinity Highway Products Sign Supports, Mailboxes, and Delineator Posts U-Bracket Sign Support
B-85F NCHRP 350 Trinity Industries Longitudinal Barriers and Bridge Rails King Block for Thrie Beam Guardrail
SS-179 NCHRP 350 Hori-Zone Concepts / Centerline Supply Sign Supports, Mailboxes, and Delineator Posts Centerline Supply Triangular Slipbase Locking Sign Collar Assembly
B-97C NCHRP 350 Trinity Highway Products Longitudinal Barriers and Bridge Rails Yodock TL-2 & TL-3 Barrier Rail Kit