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-141 | NCHRP 350 | POCO Inc. | Sign Supports, Mailboxes, and Delineator Posts | groundmounted Ground-Mounted Sign Support |
|
| B-137C (HSA) | NCHRP 350 | Gibraltar | Longitudinal Barriers and Bridge Rails | 4:1 Slope | |
| WZ-234 | NCHRP 350 | TrafFix Devices | Work Zone Devices | Phoenix Base, Phoenix Sign Stand, Traffic Super Buster, Traffix Big Buster. | |
| SS-139 | NCHRP 350 | Clifford Dent | Sign Supports, Mailboxes, and Delineator Posts | Dent Fuse Plates | |
| CC-36D | NCHRP 350 | Impact Absorption, Inc. | Barrier Terminals and Crash Cushions | Trailer VTMA @ TL-3 | |
| B-147A | NCHRP 350 | Gibraltar | Longitudinal Barriers and Bridge Rails | Gibraltar cable to W-beam transition | |
| WZ-238 | NCHRP 350 | Work Area Protection | Work Zone Devices | WZS12, WZS12-S, WZX60-SL | |
| SS-137 | NCHRP 350 | Brandon Industries | Sign Supports, Mailboxes, and Delineator Posts | Decorative Sign Supports | |
| SS-138 | NCHRP 350 | Special Lite Products Company | Sign Supports, Mailboxes, and Delineator Posts | Smooth Wall Aluminum Poles | |
| CC-59B | NCHRP 350 | Energy Absorption Systems, Incorporated | Barrier Terminals and Crash Cushions | "Tailgate" mount for SafeStop TMA |