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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 DescriptionLS-25
																																				October 10, 1991
																																				NCHRP 350
																																				Utah DOT
																																				Luminaire Supports
																																				Four-bolt luminaire slip base.LS-24
																																				July 22, 1991
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Revisions to TB-1, TB-2, TB-3 Cast aluminum transformer basesLS-23
																																				February 7, 1991
																																				NCHRP 350
																																				PrecisionForm
																																				Luminaire Supports
																																				Revision to PF200-1 breakaway coupler.LS-22
																																				September 19, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Chart summarizing approval letters ls2, ls4, ls9, ls15, ls19LS-21
																																				September 7, 1990
																																				NCHRP 350
																																				Shakespeare Products
																																				Luminaire Supports
																																				Fiberglass poles ASW27 thru ASW35 and AHW27 thru AHW35 with Al shoe baseLS-20
																																				August 20, 1990
																																				NCHRP 350
																																				Union Metal
																																				Luminaire Supports
																																				A2849 Al Transformer Base, 15" BCLS-17
																																				August 6, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				CS-300 and CS-370 Al Transformer Bases (tests of Feralux bases)LS-19
																																				August 6, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				TB-3-17, TB-5-9, TB-6-9 Transformer Bases, 11.5 to 15.5" BCLS-18
																																				August 6, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				F-1300 and F-1302 Al Transformer Bases (tests of Pole Lite bases)LS-16
																																				June 29, 1990
																																				NCHRP 350
																																				Valmont Industries
																																				Luminaire Supports
																																				Slip Base specifications
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