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-133 | NCHRP 350 | Midwest Roadside Safety Facility | Longitudinal Barriers and Bridge Rails | Midwest Guardrail System (MGS) | |
| CC-27A | NCHRP 350 | Engineered Arresting Systems Corporation | Barrier Terminals and Crash Cushions | 18-inch dia. water twister | |
| WZ-196 | NCHRP 350 | Plastic Safety Systems | Work Zone Devices | Type III Barricades | |
| SS-127 | NCHRP 350 | Ultimate Highway Products, Inc. | Sign Supports, Mailboxes, and Delineator Posts | Slip-Mate Slip Base | |
| WZ-203 | NCHRP 350 | Oregon DOT, Generic | Work Zone Devices | Single Wood Post Temporary Sign | |
| CC-87 | NCHRP 350 | Energy Absorption Systems, Inc. | Barrier Terminals and Crash Cushions | QUEST crash cushion @ TL-3 | |
| B-134 | NCHRP 350 | Energy Absorption Systems, Inc. | Longitudinal Barriers and Bridge Rails | Vulcan temporary steel barrier at TL-3 | |
| CC-85A | NCHRP 350 | SCI Products Incorporated | Barrier Terminals and Crash Cushions | SCI-70GM attenuator @ TL-2 | |
| WZ-189 | NCHRP 350 | TrafFix Devices | Work Zone Devices | Looper Cone, Metro A Cade, Big Buster Sign Stand, Phoenix sign stand | |
| LS-58 | NCHRP 350 | Akron Foundry | Luminaire Supports | Cast Aluminum Transformer Base |