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 |
|---|---|---|---|---|---|
| LS-45A | NCHRP 350 | Transpo Industries | Luminaire Supports | (LS 45 and ls45A are for the Prototype coupling) | |
| SS-59A | NCHRP 350 | Chicago Heights Steel | Sign Supports, Mailboxes, and Delineator Posts | Modify design to use "bar spacer" | |
| B-05A | NCHRP 350 | Kelken Construction Systems | Longitudinal Barriers and Bridge Rails | Extended previous acceptance to F-shape | |
| B-35 | NCHRP 350 | Creative Building Products | Longitudinal Barriers and Bridge Rails | Plastic Blockout for strong-post W-beam | |
| SS-53A | NCHRP 350 | Lancaster Composite | Sign Supports, Mailboxes, and Delineator Posts | Direct Bury acceptance of some SS-53 posts in std soil** | |
| CC-32 | NCHRP 350 | Energy Absorption | Barrier Terminals and Crash Cushions | ALPHA 70 TMA @ TL-2 | |
| LS-26A | NCHRP 350 | Sherman International | Luminaire Supports | Additional poles accepted | |
| SS-56A | NCHRP 350 | Marion Steel Company | Sign Supports, Mailboxes, and Delineator Posts | Modify design to use "bar spacer" | |
| SS-59 | NCHRP 350 | Chicago Heights Steel | Sign Supports, Mailboxes, and Delineator Posts | Dual 3 ppf u-channel in strong soil | |
| LS-45 | NCHRP 350 | Transpo Industries | Luminaire Supports | Double Neck Pole Safe Coupling for signs and luminaires. |