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-163 | NCHRP 350 | S.I. Story Lumber Co. | Longitudinal Barriers and Bridge Rails | TimBarrier StreetGuard Plus | |
| CC-94A | NCHRP 350 | Trinity Highway Products | Barrier Terminals and Crash Cushions | modify ET-2000 Plus to 31” height | |
| CC-100 | NCHRP 350 | Texas Trans. Inst. | Barrier Terminals and Crash Cushions | modify SRT, to 31” height | |
| SS-152 | NCHRP 350 | Northwest Pipe Company | Sign Supports, Mailboxes, and Delineator Posts | Direct bury PSST post into 30" PSST anchor (2.25" post max.) | |
| LS-64 | NCHRP 350 | Hapco | Luminaire Supports | Decorative Lighting Poles | |
| SS-153 | NCHRP 350 | International FiberLok | Sign Supports, Mailboxes, and Delineator Posts | Composite Fiberglass I-beam Sign support | |
| B-88E | NCHRP 350 | Safence | Longitudinal Barriers and Bridge Rails | TL-4 four cable tensioned barrier | |
| CC-78D | NCHRP 350 | Energy Absorption Systems, Inc. | Barrier Terminals and Crash Cushions | Safe-Stop trailer TMA | |
| SS-151 | NCHRP 350 | SHUR-TITE Products | Sign Supports, Mailboxes, and Delineator Posts | Mailbox Support | |
| CC-57B | NCHRP 350 | Energy Absorption Systems | Barrier Terminals and Crash Cushions | QUADGUARD Elite system 8 bays |