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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
CC-44 NCHRP 350 Trinity/Syro Barrier Terminals and Crash Cushions Sloped end terminal for Low-Profile Barrier @ TL-2
B-47 NCHRP 350 Ron Faller, MWRSF Longitudinal Barriers and Bridge Rails Steel post & wood post Thrie-beam transitions to concrete parapets (two designs)
B-46 NCHRP 350 Fracasso, Italy Longitudinal Barriers and Bridge Rails 3N Double Space Safety Barrier (1180-mm high)
B-45 NCHRP 350 California DOT Longitudinal Barriers and Bridge Rails Single slope roadside/median barrier-9.1 degrees
SS-78 NCHRP 350 SMI Steel - Southern Post Sign Supports, Mailboxes, and Delineator Posts Steel Flanged Channel Sign Posts up to 3.7 kg/m
WZ-02 NCHRP 350 Impact Recovery Systems, Inc Work Zone Devices Vertical Panel w/driveable base, Portable Single and Double Vertical Panels, Fixed Single and Double Vertical Panels, Fixed Chevron sign Assemblies, Accepted TL-3
SS-41A Richard Strizki Sign Supports, Mailboxes, and Delineator Posts Design revisions to New Jersey Breakaway Sign System.
WZ-03 NCHRP 350 Various Work Zone Devices FHWA Memo of 8-28-98. It finds the following tested devices acceptable for use on the NHS. See Attachment B, Table 2 for test data, and the drawings after the tables for illustrations of the crashworthy devices.
CC-31A NCHRP 350 King Mak, TTI Barrier Terminals and Crash Cushions Modified Metal End Section
B-44 NCHRP 350 FHWA memo to field Longitudinal Barriers and Bridge Rails Report 350 acceptability of various wood and recycled blockouts for w-beam guardrail