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-75 | NCHRP 350 | Universal Anchor Systems, Inc | Sign Supports, Mailboxes, and Delineator Posts | Universal Anchor System with HWYCOM and POZLOC posts | |
| SS-69A | NCHRP 350 | Safety Quest, Inc. | Sign Supports, Mailboxes, and Delineator Posts | Slip Safe in Weak Soil | |
| CC-40 | NCHRP 350 | Road Systems, Inc. | Barrier Terminals and Crash Cushions | Sequential Kinking Terminal (SKT-350) @ TL-3 | |
| LS-44B | NCHRP 350 | Valmont | Luminaire Supports | Use of ASTM A574 fasteners in above coupling | |
| CC-37C | NCHRP 350 | Barrier Terminals and Crash Cushions | Design modification | ||
| SS-74 | NCHRP 350 | Granger and Assoc | Sign Supports, Mailboxes, and Delineator Posts | "ANYTWO" bracer bar for splicing u-channels | |
| B-39 | NCHRP 350 | D.Tarrant - Mondo Polymer | Longitudinal Barriers and Bridge Rails | Polymer Offset Blocks for w-beam guardrail | |
| CC-38 | NCHRP 350 | Trinity/Syro | Barrier Terminals and Crash Cushions | ADIEM @ TL-3 | |
| LS-44A | NCHRP 350 | Valmont | Luminaire Supports | Production Model of above Breakaway Coupling | |
| SS-73 | NCHRP 350 | PennDot | Sign Supports, Mailboxes, and Delineator Posts | "Universal" Spacer Bar for splicing u-channels |