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-156 | NCHRP 350 | Gregory Industries Inc. | Longitudinal Barriers and Bridge Rails | GMS-TB Guardrail System | |
| WZ-228 | NCHRP 350 | Davidson Plastics Corp | Work Zone Devices | Steel-Kade Type I Barricade and Type II Barricades | |
| CC-65B | NCHRP 350 | TrafFix Devices, Inc | Barrier Terminals and Crash Cushions | Trailer TMA | |
| WZ-230 | NCHRP 350 | Davidson Plastics Corp. | Work Zone Devices | Portable Sign Stand, Vertical Panel | |
| SS-146 | NCHRP 350 | Designovations | Sign Supports, Mailboxes, and Delineator Posts | Snap N Safe round coupler | |
| B-155 | NCHRP 350 | Corpacero | Longitudinal Barriers and Bridge Rails | HDPE Spacer Block, TL-3 | |
| CC-97 | NCHRP 350 | Plastic Safety Systems, Inc | Barrier Terminals and Crash Cushions | “Crashgard” Sand Barrel Attenuator System | |
| WZ-250 | NCHRP 350 | Dicke Tool Company | Work Zone Devices | Portable Sign Stand | |
| WZ-75A | NCHRP 350 | Acme Barricades | Work Zone Devices | Portable Sign Stand | |
| WZ-251 | NCHRP 350 | Barrierre QMB Canada Inc. | Work Zone Devices | Gate channelizer (plastic) |