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-57D | NCHRP 350 | Trinity Highway Products | Barrier Terminals and Crash Cushions | QuadGuard Elite System Modification | |
| CC-87D | NCHRP 350 | Trinity Highway Products | Barrier Terminals and Crash Cushions | QUEST System Modification | |
| CC-124 | NCHRP 350 | Trinity | Barrier Terminals and Crash Cushions | Trinity Slotted Rail Terminal SRT End Terminal Family Ground Strut Modification | |
| WZ-334 | NCHRP 350 | PEXCO LLC / Davidson Traffic Control Products | Work Zone Devices | Construction Grade IG Curb, with FG300 Channelizer Posts | |
| CC-100C | NCHRP 350 | Trinity Highway Products | Barrier Terminals and Crash Cushions | Slotted Rail Terminal 31-inch (SRT-31) Wood Post | |
| WZ-333 | NCHRP 350 | MDI Worldwide | Work Zone Devices | 4814SL Screw Lock Sign Stand | |
| SS-126B | NCHRP 350 | Trinity Highway Products | Sign Supports, Mailboxes, and Delineator Posts | Perforated Square Steel Tube Sign Supports | |
| WZ-329 | NCHRP 350 | Dicke Tool Company | Work Zone Devices | X-Footprint Portable Sign Stand TF 1240 & STF 1240 | |
| SS-36A | NCHRP 350 | Michigan DOT | Sign Supports, Mailboxes, and Delineator Posts | Breakaway Wood Sign Supports with Lag Screws | |
| WZ-322 | NCHRP 350 | Protection Services, Inc | Work Zone Devices | 42" Tall Traffic Cone |