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-177 | NCHRP 350 | TGS Trinity Industries | Longitudinal Barriers and Bridge Rails | Trinity Guardrail Systems (T-31 and T-39 in both US and SI panels and post spacings.) | |
| CC-35H | NCHRP 350 | Energy Absorption Systems | Barrier Terminals and Crash Cushions | modification to QUADGUARD system | |
| B-161 | NCHRP 350 | NYSDOT | Longitudinal Barriers and Bridge Rails | Generic 4-strand cable barrier system | |
| SS-150 | NCHRP 350 | Northwest Pipe Company | Sign Supports, Mailboxes, and Delineator Posts | Poz-Loc 8 inch square slip base | |
| SS-149 | NCHRP 350 | Carmanah Technologies | Sign Supports, Mailboxes, and Delineator Posts | Beacon mounted on square tube post utilizing a Kleen Break frangible coupling. | |
| CC-99 | NCHRP 350 | Impact Absorption | Barrier Terminals and Crash Cushions | U-MAD trailer-mounted attenuator | |
| SS-128 | NCHRP 350 | Northwest Pipe Company | Sign Supports, Mailboxes, and Delineator Posts | Poz Loc Slipbase Casting 2709 | |
| WZ-257 | NCHRP 350 | E-Z Cade Manufacturing | Work Zone Devices | EZ Cade Vertical Panel (Coroplast Material) | |
| WZ-252 | NCHRP 350 | Traffix Devices | Work Zone Devices | Premier Panel Vertical Panel | |
| WZ-258 | NCHRP 350 | Korman Signs, Inc. | Work Zone Devices | Ground Mounted Sign Stand, Model ss548DIUC |