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-34 | NCHRP 350 | Millerbernd Manufacturing | Luminaire Supports | Progressive Shear Bases 40C63 and 40C49 on stainless, high carbon, and CORTEN A poles | |
| SS-36 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Large and Small Sign Supports (See memo for details on various Wood, U-Channel, Perf.Sq.Steel Tube, Slip Base, FRP posts.) | ||
| LS-32 | NCHRP 350 | Hapco Division | Luminaire Supports | Cast Al.Shoe Bases TP3405 & TP3406, 9&12" BC | |
| SS-37 | NCHRP 350 | Greenline | Sign Supports, Mailboxes, and Delineator Posts | Recycled Thermoplastic Delineator Posts | |
| LS-31 | NCHRP 350 | Syro Steel | Luminaire Supports | ADD. Breakaway Timber Utility Pole (Four-bolt slip base) | |
| B-24 | NCHRP 350 | Friend Town and Country | Longitudinal Barriers and Bridge Rails | Breakaway Mailbox Support for snow areas | |
| SS-35 | NCHRP 350 | Imperial, Inc | Sign Supports, Mailboxes, and Delineator Posts | Aluminum tube 2.375" diameter | |
| LS-29 | NCHRP 350 | Hapco | Luminaire Supports | Extruded Al.Bases A73089, A73088, 11" & 15" BC | |
| B-25 | NCHRP 350 | Energy Absorption Systems | Longitudinal Barriers and Bridge Rails | Barrier Gate moveable median barrier closure | |
| SS-34 | NCHRP 350 | Louisiana DOTD | Sign Supports, Mailboxes, and Delineator Posts | Omni Directional Slip Base, 3.5" diameter post |