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 |
|---|---|---|---|---|---|
| SS-18 | NCHRP 350 | Minute Man Breakaway | Sign Supports, Mailboxes, and Delineator Posts | MMB-1HD breakaway device for use with two 3 #/ft flanged channel "U" posts in strong soil. (see SS-21 for weak soil acceptance letter) | |
| CC-14 | NCHRP 350 | Syro Steel Co. | Barrier Terminals and Crash Cushions | CAT crash cushion attenuating terminal (Operational) | |
| LS-15 | NCHRP 350 | Akron Foundry | Luminaire Supports | TB-2 Al Transformer base, 12" B.C. TB-1 Al Transformer base, 950# pole. | |
| LS-14 | NCHRP 350 | Valmont Industries | Luminaire Supports | Cast Al transformer base No. 0283093 15 inch maximum bolt circle | |
| LS-13 | NCHRP 350 | P&K Pole Products | Luminaire Supports | 10" slipbase | |
| LS-11 | NCHRP 350 | Union Metal | Luminaire Supports | A2850-C1R10 Al Transformer Base 12.5 inch maximum bolt circle | |
| LS-12 | NCHRP 350 | P&K Pole Products | Luminaire Supports | 7" & 8" Al shoe bases, 10" slip base | |
| B-12 | NCHRP 350 | International Barrier Corp. | Longitudinal Barriers and Bridge Rails | Revised design of MK-7 Drainage/Obstacle Mod. | |
| LS-06A | NCHRP 350 | Shakespeare Products | Luminaire Supports | Extrapolate acceptance to higher poles | |
| LS-10 | NCHRP 350 | Precision Form | Luminaire Supports | PrecisionForm Coupler PFI 200-1 for poles weighing no more than 800#. |