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                        Hardware Eligibility Letters


            
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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-128
																																				June 14, 2007
																																				NCHRP 350
																																				Northwest Pipe Company
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Poz Loc Slipbase Casting 2709SS-115A
																																				October 23, 2013
																																				NCHRP 350
																																				Trinity Highway Products
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				U-Bracket Sign SupportSS-95
																																				March 28, 2001
																																				NCHRP 350
																																				Franklin Industries
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Ribbed Back version of u-channel postSS-78
																																				February 3, 1998
																																				NCHRP 350
																																				SMI Steel - Southern Post
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Steel Flanged Channel Sign Posts up to 3.7 kg/mSS-68D
																																				February 22, 1999
																																				NCHRP 350
																																				X-Cessories Squared
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				3-bolt slip base, 10-inch varietySS-60A
																																				October 21, 1996
																																				NCHRP 350
																																				Clifford Dent
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Larger bolts with same necked-down diameterSS-51
																																				January 23, 1995
																																				NCHRP 350
																																				Unistrut Corp.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				A570 Perforated Square Steel Posts W/60 ksi yieldSS-39
																																				October 25, 1993
																																				NCHRP 350
																																				Recycled Plastic Prod.,Inc
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				3.5" x 3.5" Recycled Plastic Small Sign SupportSS-26
																																				February 11, 1992
																																				NCHRP 350
																																				Unistrut Corp.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Telespar square perf. tube small sign supports without sleeve around base post.SS-16
																																				December 29, 1989
																																				NCHRP 350
																																				Minute Man Breakaway
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				MMB-1HD breakaway device for use with 3 #/ft. steel flanged channel "U"-posts.
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