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 |
|---|---|---|---|---|---|
| CC-37 | NCHRP 350 | Univ. of Nebraska | Barrier Terminals and Crash Cushions | BEST-350 @ TL-3 | |
| B-34A | NCHRP 350 | Safety Barrier Systems | Longitudinal Barriers and Bridge Rails | Guardian Safety Barrier | |
| CC-35A | NCHRP 350 | Barrier Terminals and Crash Cushions | QUARDGUARD CZ @ TL-3 | ||
| CC-34A | NCHRP 350 | Barrier Terminals and Crash Cushions | Modified MPS 350 accepted at test level 3 | ||
| SS-60A | NCHRP 350 | Clifford Dent | Sign Supports, Mailboxes, and Delineator Posts | Larger bolts with same necked-down diameter | |
| SS-09B | NCHRP 350 | Franklin Steel | Sign Supports, Mailboxes, and Delineator Posts | Dual EZE-Erect in strong soil. | |
| xx02 | NCHRP 350 | Franklin Industries | Sign Supports, Mailboxes, and Delineator Posts | Dual EZE-Erect in Strong Soil | |
| CC-35B | NCHRP 350 | Barrier Terminals and Crash Cushions | QUADGUARD Crash Cushion - no traffic direction restrictions | ||
| SS-70 | NCHRP 350 | Richard Buhler | Sign Supports, Mailboxes, and Delineator Posts | Sleeve it N Go for 4x4 wood posts | |
| SS-69 | NCHRP 350 | Safety Quest, Inc | Sign Supports, Mailboxes, and Delineator Posts | U-Channel Slip Splice |