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            In This Section
  

  Roadway Departure Safety
                Strategic Approach
                Keep Vehicles on the Road
                Provide for a Safe Recovery
                Reduce Crash Severity
                Focus on Reducing Rural Roadway Departures (FoRRRwD)
                
                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.SearchHardware Type
                    
- Any -Barrier Terminals and Crash CushionsLongitudinal Barriers and Bridge RailsLuminaire SupportsSign Supports, Mailboxes, and Delineator PostsWork Zone DevicesStart DateEnd Date
    Letter
																								DateSort ascending
																								Testing
																								Manufacturer
																								Hardware Type
																								Device DescriptionSS-35
																																				May 28, 1993
																																				NCHRP 350
																																				Imperial, Inc
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Aluminum tube 2.375" diameterLS-29
																																				April 26, 1993
																																				NCHRP 350
																																				Hapco
																																				Luminaire Supports
																																				Extruded Al.Bases A73089, A73088, 11" & 15" BCB-25
																																				April 14, 1993
																																				NCHRP 350
																																				Energy Absorption Systems
																																				Longitudinal Barriers and Bridge Rails
																																				Barrier Gate moveable median barrier closureSS-34
																																				March 20, 1993
																																				NCHRP 350
																																				Louisiana DOTD
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Omni Directional Slip Base, 3.5" diameter postCC-19
																																				March 1, 1993
																																				NCHRP 350
																																				Connecticut DOT
																																				Barrier Terminals and Crash Cushions
																																				Generalized Connecticut Impact Attenuation System (GCIAS)LS-30
																																				January 27, 1993
																																				NCHRP 350
																																				
																																				Luminaire Supports
																																				FHWA Breakaway Timber Utility Pole (Operational) (Six-bolt slip base)CC-18
																																				January 8, 1993
																																				NCHRP 350
																																				Wyoming DOT
																																				Barrier Terminals and Crash Cushions
																																				Box Beam End Treatment (Numbered "B-23" in error)B-20A
																																				January 4, 1993
																																				NCHRP 350
																																				Mobil Chemical Company Suppl.
																																				Longitudinal Barriers and Bridge Rails
																																				permits use as a blockout on steel posts.B-22
																																				December 17, 1992
																																				NCHRP 350
																																				Ryerson Plastics
																																				Longitudinal Barriers and Bridge Rails
																																				Steel Reinforced Recycled Plastic Guardrail PostsB-23
																																				December 3, 1992
																																				NCHRP 350
																																				MGS Innovations
																																				Longitudinal Barriers and Bridge Rails
																																				Precast Concrete Barrier (See Number CC-18 for Wyoming Box Beam End Treatment)
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