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FHWA Highway Safety Programs

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 Testing Manufacturer Hardware Type Device Description
LS-78 NCHRP 350 Main Street Lighting Luminaire Supports Fiberglass light pole 12.75 foot height
LS-76 NCHRP 350 HAPCO Luminaire Supports HAPCO 67238A Coupling with 2” washers
LS-74 NCHRP 350 HAPCO Luminaire Supports Various breakaway bases and decorative covers for lighting and luminaire support posts as described below
LS-75 NCHRP 350 Valmont Luminaire Supports 2-Piece Cast Aluminum Base
LS-73 NCHRP 350 MWRSF Luminaire Supports Brass Breakaway Couplings
LS-72 NCHRP 350 Valmont Industries, Inc. Luminaire Supports Valmont Decorative Clamshell Base Covers
LS-70 NCHRP 350 Akron Foundry Company Luminaire Supports Cast Aluminum Breakaway Transformer Bases
LS-71 NCHRP 350 Akron Foundry Company Luminaire Supports Cast Aluminum Transformer Bases
LS-69 NCHRP 350 Hapco Luminaire Supports Decorative Poles - B15366 (Casting 79419)
LS-68 NCHRP 350 Shakespeare Products Luminaire Supports Shakespeare decorative poles (14)