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-61 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Revised Oregon multi-directional slip base | ||
| B-34 | NCHRP 350 | Safety Barrier Systems Guardian | Longitudinal Barriers and Bridge Rails | Temporary Barrier (Conditional TL-3) (Conditional acceptance upgraded to Full) |
|
| B-33 | NCHRP 350 | BGFM Assoc | Longitudinal Barriers and Bridge Rails | Concrete Safety Shape connection to bridge deck | |
| B-32 | NCHRP 350 | Arnold Forest Products | Longitudinal Barriers and Bridge Rails | Round Timber Guardrail Posts TL-3 | |
| CC-31 | NCHRP 350 | Texas A&M (TTI) | Barrier Terminals and Crash Cushions | Slotted Rail Terminals (SRT) for W-beam Guardrail @ TL-3 | |
| SS-60 | NCHRP 350 | Clifford Dent | Sign Supports, Mailboxes, and Delineator Posts | Coupling for sign supports | |
| SS-58 | NCHRP 350 | Flexstake | Sign Supports, Mailboxes, and Delineator Posts | Flexible delineator posts | |
| SS-57 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Minuteman coupler on Triple 3ppf and 4ppf (w/soil plate on 4ppf),in all soils. | ||
| CC-26C | NCHRP 350 | Barrier Terminals and Crash Cushions | Design change | ||
| SS-46A | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Dual Unmodified Cedar Posts full dimension 4"x6" |