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-283 | NCHRP 350 | Econo Brother model 3200 | Work Zone Devices | Temporary sign stand with 12 inch mounting height measured to bottom of sign. | |
| B-192 | NCHRP 350 | BWW Enterprises | Longitudinal Barriers and Bridge Rails | Diamond Block TL-3 | |
| WZ-280 | NCHRP 350 | Workzone Safety Products | Work Zone Devices | Temporary sign stand with 13 inch mounting height measured to bottom of sign. | |
| WZ-279 | NCHRP 350 | ATM Traffic Systems L.L.C. | Work Zone Devices | Water filled (up to 75 gallon per unit) Test Level 2 LCD. | |
| WZ-278 | NCHRP 350 | Plastic Safety Systems | Work Zone Devices | Water or Sand filled Type II barricade with ADA consideration | |
| B-141E | NCHRP 350 | Trinity Industries | Longitudinal Barriers and Bridge Rails | CASS with C-Channel posts | |
| CC-97A | NCHRP 350 | Plastic Safety Systems | Barrier Terminals and Crash Cushions | Interchangeability of Crash Guard Sand Barrel System TL-3 | |
| CC-35I | NCHRP 350 | Energy Absorption Systems, Inc. | Barrier Terminals and Crash Cushions | 5-bay QuadGuard II 5-bay QuadGuard II Wide 2-bay QuadGuard II Test Levels 2 and 3 |
|
| WZ-277 | NCHRP 350 | Lifetime Products / Off The Wall Products | Work Zone Devices | Water-filled channelizing device based on testing conducted of WZ-255 | |
| B-141D | NCHRP 350 | Trinity Industries | Longitudinal Barriers and Bridge Rails | CASS of 141C on 6:1 slopes or flatter |