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 |
|---|---|---|---|---|---|
| SS-84 | NCHRP 350 | Los Angeles County SAFE | Sign Supports, Mailboxes, and Delineator Posts | Comarco Wireless Technologies TTY Call Box Support | |
| WZ-19 | NCHRP 350 | Montana Department of Transportation Contruction Bureau | Work Zone Devices | Montana Portable Sigh Support Trailer | |
| WZ-18 | NCHRP 350 | PIBH | Work Zone Devices | Portable Sign Stand | |
| WZ-17 | NCHRP 350 | Dicke Tool Company | Work Zone Devices | Safety Devices | |
| SS-83 | NCHRP 350 | Marion Steel | Sign Supports, Mailboxes, and Delineator Posts | Modified Rib-Bak - Canadian post section | |
| SS-82 | NCHRP 350 | St. Louis Steel | Sign Supports, Mailboxes, and Delineator Posts | Perforated square steel tube sign suppports. | |
| B-56 | NCHRP 350 | David Hubbell | Longitudinal Barriers and Bridge Rails | IRONWOOD Guardrail-aesthetic timber/steel rail | |
| CC-57A | NCHRP 350 | J.M. Essex,EASI | Barrier Terminals and Crash Cushions | 7-bay QuadGuard Elite at test level 2 @ TL-2 | |
| CC-35C | NCHRP 350 | Energy Absorption | Barrier Terminals and Crash Cushions | 3-bay QUADGUARD at test level 2 @ TL-2 | |
| CC-50A | NCHRP 350 | Dean Alberson | Barrier Terminals and Crash Cushions | Name change to Medium REACT w/2743 or 3048mm widths) @ TL-3 |