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-19 | NCHRP 350 | Connecticut DOT | Barrier Terminals and Crash Cushions | Generalized Connecticut Impact Attenuation System (GCIAS) | |
| LS-30 | NCHRP 350 | Luminaire Supports | FHWA Breakaway Timber Utility Pole (Operational) (Six-bolt slip base) | ||
| CC-18 | NCHRP 350 | Wyoming DOT | Barrier Terminals and Crash Cushions | Box Beam End Treatment (Numbered "B-23" in error) | |
| B-20A | NCHRP 350 | Mobil Chemical Company Suppl. | Longitudinal Barriers and Bridge Rails | permits use as a blockout on steel posts. | |
| B-22 | NCHRP 350 | Ryerson Plastics | Longitudinal Barriers and Bridge Rails | Steel Reinforced Recycled Plastic Guardrail Posts | |
| B-23 | NCHRP 350 | MGS Innovations | Longitudinal Barriers and Bridge Rails | Precast Concrete Barrier (See Number CC-18 for Wyoming Box Beam End Treatment) | |
| B-21 | NCHRP 350 | Energy Absorption Systems | Longitudinal Barriers and Bridge Rails | Triton Water Filled Barrier for Low Speed Applications | |
| LS-23A | NCHRP 350 | PrecisionForm | Luminaire Supports | Supplement Removes Certain Conditions | |
| SS-33 | NCHRP 350 | Transpo Industries, Inc. | Sign Supports, Mailboxes, and Delineator Posts | 201C and 301C Pole-Safe couplings for Motorist Aid Call Box Supports | |
| SS-32 | NCHRP 350 | Sign Supports, Mailboxes, and Delineator Posts | Western Red Cedar for Breakaway Wood Supports |