NCHRP 350 Crash Test Program 2005. NCHRP 350 CRASH TESTING OF WORK ZONE DEVICES. 1997 FHWA started requiring work zone devices to be crashworthy. New purchases must meet NCHRP 350 Agencies can phase out existing devices until January 1, 2006. NCHRP 350 CRASH TESTING OF WORK ZONE DEVICES.
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supports, Type I, II and III barricades,
vertical panels, drums and cones with
lights. (Compliant Date Oct. 1, 2000)