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 |
|---|---|---|---|---|---|
| WZ-323 | NCHRP 350 | Dicke Safety Products | Work Zone Devices | DF3003W Portable Sign Stand with 60x60 Rectangular Signs | |
| B-242 | NCHRP 350 | Maine Department of Transportation (MEDOT) | Longitudinal Barriers and Bridge Rails | MEDOT 36" 3 Tube TL4 Bridge Rail | |
| B-34H | NCHRP 350 | OTW Safety | Longitudinal Barriers and Bridge Rails | MB-350 Water Filled Barrier Modifications | |
| CC-120A | NCHRP 350 | Barrier Systems Inc. | Barrier Terminals and Crash Cushions | X-Lite Tangent and X-Lite Flared Soil Plate Modification | |
| CC-65H | NCHRP 350 | TrafFix Devices, Inc. | Barrier Terminals and Crash Cushions | Scorpion Trailer Attenuator with Arrow Panel | |
| SS-178 | NCHRP 350 | Ground Connection LLC | Sign Supports, Mailboxes, and Delineator Posts | Ground Connection Ground Screw Foundation | |
| SS-177 | NCHRP 350 | MDSolutions | Sign Supports, Mailboxes, and Delineator Posts | Generic Perforated Square Steel Tube Sign Supports | |
| B-153B | NCHRP 350 | Atlanticum Bridge Corp. | Longitudinal Barriers and Bridge Rails | NatureRail Aesthetic Barrier with various wood species | |
| SS-134C | NCHRP 350 | Xcessories Squared | Sign Supports, Mailboxes, and Delineator Posts | Xcessories Squared Redi-Torque Triangular Slip Base | |
| SS-170 | NCHRP 350 | Minnesota Department of Transportation | Sign Supports, Mailboxes, and Delineator Posts | Minnesota Type "C" and "D" Braced Leg Sign Supports Supports |