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-64D | NCHRP 350 | FHWA field offices | Longitudinal Barriers and Bridge Rails | aesthetic roadside barriers & bridge rails | |
| WZ-147 | NCHRP 350 | Reflexite | Work Zone Devices | Endurance 10 mm equivalence | |
| WZ-135 | NCHRP 350 | Off the Wall | Work Zone Devices | Multi Barrier Barricade | |
| B-116 | NCHRP 350 | Midwest Roadside Safety Facility | Longitudinal Barriers and Bridge Rails | low concrete bridge rail @ TL-2 | |
| B-114 | NCHRP 350 | Welch Products, Inc. | Longitudinal Barriers and Bridge Rails | recycled rubber offset block | |
| WZ-146 | NCHRP 350 | United Rentals | Work Zone Devices | Low H-Stand with 48 inch sign | |
| WZ-150 | NCHRP 350 | United Rentals | Work Zone Devices | URHT Type III Barricade | |
| WZ-149 | NCHRP 350 | MWRSF | Work Zone Devices | Michigan Portable Sign Stand | |
| WZ-148 | NCHRP 350 | X-Cessories Squared | Work Zone Devices | Revision to Type III Barricade from WZ-51 | |
| B-64E | NCHRP 350 | NYSDOT | Longitudinal Barriers and Bridge Rails | Weak post w-beam median barrier @ TL-3 |