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-78 | NCHRP 350 | SMI Steel - Southern Post | Sign Supports, Mailboxes, and Delineator Posts | Steel Flanged Channel Sign Posts up to 3.7 kg/m | |
| SS-41A | Richard Strizki | Sign Supports, Mailboxes, and Delineator Posts | Design revisions to New Jersey Breakaway Sign System. | ||
| WZ-02 | NCHRP 350 | Impact Recovery Systems, Inc | Work Zone Devices | Vertical Panel w/driveable base, Portable Single and Double Vertical Panels, Fixed Single and Double Vertical Panels, Fixed Chevron sign Assemblies, Accepted TL-3 | |
| WZ-03 | NCHRP 350 | Various | Work Zone Devices | FHWA Memo of 8-28-98. It finds the following tested devices acceptable for use on the NHS. See Attachment B, Table 2 for test data, and the drawings after the tables for illustrations of the crashworthy devices. | |
| CC-31A | NCHRP 350 | King Mak, TTI | Barrier Terminals and Crash Cushions | Modified Metal End Section | |
| B-44 | NCHRP 350 | FHWA memo to field | Longitudinal Barriers and Bridge Rails | Report 350 acceptability of various wood and recycled blockouts for w-beam guardrail | |
| SS-76 | NCHRP 350 | New Hampshire DOT | Sign Supports, Mailboxes, and Delineator Posts | Certain thin walled Aluminum pipe and steel u-channels | |
| SS-65B | NCHRP 350 | Southwestern Pipe | Sign Supports, Mailboxes, and Delineator Posts | Remove proprietary restrictions | |
| CC-43 | NCHRP 350 | Energy Absorption | Barrier Terminals and Crash Cushions | QuadGuard-Low Maintenance Cartridge (LMC) @ TL-3 | |
| LS-47 | NCHRP 350 | Akron Foundry | Luminaire Supports | TS-1000 and TS-1000Modified threaded traffic signal bases |