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 |
|---|---|---|---|---|---|
| WZ-235 | NCHRP 350 | CRSIGNS Inc. | Work Zone Devices | RubberSteel | |
| B-141A | NCHRP 350 | Trinity | Longitudinal Barriers and Bridge Rails | TL-3 CASS w/ driven posts at 20-foot spacing | |
| WZ-100#7 | NCHRP 350 | Korman Signs | Work Zone Devices | Model SS548 Series and SS560 Series Portable Sign Stands | |
| WZ-233 | NCHRP 350 | Plastic Safety Systems | Work Zone Devices | PSS Type III Barricade | |
| SS-133 | NCHRP 350 | City of Spokane / Texas Trans. Inst. | Sign Supports, Mailboxes, and Delineator Posts | Upost, Steel tube, Slip Base | |
| B-82C1 | NCHRP 350 | Hill & Smith Ltd. | Longitudinal Barriers and Bridge Rails | Shorter Length 3-cable WRSF @ TL-3 | |
| B-145 | NCHRP 350 | Nebraska Department of Roads | Longitudinal Barriers and Bridge Rails | Test Level 5 (TL- 5) Bridge Rail | |
| B-137B | NCHRP 350 | Gibraltar | Longitudinal Barriers and Bridge Rails | Alternative Post Spacings | |
| WZ-224 | NCHRP 350 | Traffix Devices | Work Zone Devices | Water Wall | |
| WZ-225 | NCHRP 350 | John Thomas Inc. | Work Zone Devices | Dura Curb |