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-46 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Single Unmodified Cedar Post full dimension 4"x6" | ||
| SS-45 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Drilled Wood posts in concrete foundations, Pennsylvania designs ** | ||
| CC-16A | NCHRP 350 | Syro Steel Co. | Barrier Terminals and Crash Cushions | Qualifies ADIEM for use as a crash cushion as well. | |
| SS-44 | NCHRP 350 | Unistrut Corp. | Sign Supports, Mailboxes, and Delineator Posts | 14-gage A715 Gr 60 Perf. Square Steel posts * | |
| CC-12A | NCHRP 350 | Barrier Terminals and Crash Cushions | Design modification | ||
| SS-43 | NCHRP 350 | VSAR Systems | Sign Supports, Mailboxes, and Delineator Posts | Speed-E-Rect breakaway device for U-channels | |
| B-26 | NCHRP 350 | Energy Absorption Systems | Longitudinal Barriers and Bridge Rails | TRITON end treatments | |
| CC-20 | NCHRP 350 | RENCO | Barrier Terminals and Crash Cushions | Truck Mounted Attenuator | |
| SS-42 | NCHRP 350 | Marion Steel Co. | Sign Supports, Mailboxes, and Delineator Posts | 1.12 PPF and 1.33 PPF A-36 Delineator Posts | |
| SS-41 | NCHRP 350 | Richard Strizki | Sign Supports, Mailboxes, and Delineator Posts | Load Concentrating Coupling and Adjustable Anchor and Bracket Assembly |