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-35 | NCHRP 350 | Hapco Division | Luminaire Supports | "X"and"Y"extruded al.slip bases, 11" & 15" BC | |
| CC-25 | NCHRP 350 | Energy Absorption | Barrier Terminals and Crash Cushions | NEAT Non-redirecting crash cushion @ TL-2 | |
| SS-52 | NCHRP 350 | Xcessories Squared | Sign Supports, Mailboxes, and Delineator Posts | Three-Bolt Slip Base (same as SS-24) (Letter was originally written to Allied Highway Sales, but hardware is manufactured by Xcessories Squared.) | |
| SS-51 | NCHRP 350 | Unistrut Corp. | Sign Supports, Mailboxes, and Delineator Posts | A570 Perforated Square Steel Posts W/60 ksi yield | |
| B-31 | NCHRP 350 | R.Faller, U of Nebraska | Longitudinal Barriers and Bridge Rails | 5 Railings for timber Bridges | |
| B-30 | NCHRP 350 | Safety Barrier Systems Guardian | Longitudinal Barriers and Bridge Rails | Water Filled Plastic Barrier | |
| B-29 | NCHRP 350 | RAMCO | Longitudinal Barriers and Bridge Rails | Polylumber Blockouts on Wood Post W-beam | |
| B-28 | NCHRP 350 | Fracasso, Italy | Longitudinal Barriers and Bridge Rails | 3-N Steel Guardrail | |
| CC-24 | NCHRP 350 | Trinity/Syro | Barrier Terminals and Crash Cushions | HEXCEL TMA under NCHRP 230 guidelines | |
| CC-23 | NCHRP 350 | Univ. of Nebraska | Barrier Terminals and Crash Cushions | Metal Cutting Terminal |