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  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
																								TestingSort descending
																								Manufacturer
																								Hardware Type
																								Device DescriptionSS-03
																																				October 3, 1986
																																				
																																				Allied Tube & Conduit Corp.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				QWIK-PUNCH tube system  - max size 	2 1/4 x 2 1/4 in. x 12 ga. post set in reinforced sleeve base.SS-56
																																				July 13, 1995
																																				MASH
																																				Marion Steel Company
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				"Lap Splice" for triple 3ppf and 4ppf in both soilsLS-62
																																				December 15, 2006
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				CS-300 Breakaway Cast Aluminum Transformer BaseLS-46
																																				February 24, 1997
																																				NCHRP 350
																																				Region 7
																																				Luminaire Supports
																																				Nebraska and South Dakota Road Closure GateLS-34
																																				October 5, 1993
																																				NCHRP 350
																																				Millerbernd Manufacturing
																																				Luminaire Supports
																																				Progressive Shear Bases 40C63 and 40C49 on stainless, high carbon, and CORTEN A polesLS-22
																																				September 19, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Chart summarizing approval letters ls2, ls4, ls9, ls15, ls19LS-06A
																																				March 5, 1990
																																				NCHRP 350
																																				Shakespeare Products
																																				Luminaire Supports
																																				Extrapolate acceptance to higher polesSS-170
																																				November 30, 2012
																																				NCHRP 350
																																				Minnesota Department of Transportation
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Minnesota Type "C" and "D" Braced Leg Sign Supports
SupportsSS-152
																																				August 23, 2007
																																				NCHRP 350
																																				Northwest Pipe Company
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Direct bury PSST post into 30" PSST anchor (2.25" post max.)SS-136
																																				March 9, 2006
																																				NCHRP 350
																																				Designovations
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Modifications to Designovation Breakaway Device, for sizes 2 1/2 inches and smaller.
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