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                        Hardware Eligibility Letters


            
            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
																								Date
																								Testing
																								ManufacturerSort ascending
																								Hardware Type
																								Device DescriptionLS-04
																																				January 12, 1989
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Reaffirmation of TB1 bases, 10.5" to 15" BCLS-58
																																				February 8, 2005
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Cast Aluminum Transformer BaseLS-57r
																																				July 26, 2004
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TB1-17 breakaway cast aluminum transformer baseLS-02
																																				June 29, 1988
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TB Series AL Transformer (TB1-AF 1315-17 and modifications) (See ls4)LS-57
																																				April 19, 2003
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TB1-17 breakaway cast aluminum transformer baseLS-56
																																				November 13, 2003
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				T-Base breakaway cast aluminumLS-55
																																				November 13, 2005
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TB2-17 breakaway cast aluminum transformer baseLS-53
																																				June 6, 2002
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TS-1000 Threaded Traffic Signal Pedestal Base and TS-1000 Modified Threaded Traffic Signal Pedestal BaseLS-24
																																				July 22, 1991
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Revisions to TB-1, TB-2, TB-3 Cast aluminum transformer basesLS-47
																																				November 19, 1997
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TS-1000 and TS-1000Modified threaded traffic signal bases
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