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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 Sort ascending Testing Manufacturer Hardware Type Device Description
WZ-88 NCHRP 350 Barricade Light and Rental Work Zone Devices Vertical Panel 2000’s and Type II Barricades
SS-103 NCHRP 350 Marion Steel Company Sign Supports, Mailboxes, and Delineator Posts Slip Safe for use with square steel tube posts
WZ-84 NCHRP 350 Protection Services, Inc Work Zone Devices Big Foot Type II Barricade w/ and w/o lite, three foot panel as well as two foot panel
SS-101 NCHRP 350 BMK Corporation Sign Supports, Mailboxes, and Delineator Posts Polecrete Postloc foaming polyurethane backfill product
WZ-99 NCHRP 350 Dicke Tool Co Work Zone Devices 8-27-01
B-92 NCHRP 350 Imperial Laminators Longitudinal Barriers and Bridge Rails glu-lam posts and block for w-beam @TL-3
B-86A NCHRP 350 OR DOT Longitudinal Barriers and Bridge Rails 42-inch tall F-shape @ TL-4
WZ-98 NCHRP 350 Kong Young Lamps Work Zone Devices Auto LED Warning Light for Barricade Use
B-91 NCHRP 350 Aeolian Enterprises, Inc. Longitudinal Barriers and Bridge Rails Aeolian recycled plastic block @ TL-3
WZ-85 NCHRP 350 FHWA Policy Memorandum Work Zone Devices Design and Materials of Crashworthy Work Zone Traffic Control Devices; Portable Sign Stands, Type III Barricades, and Category IV Devices