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                        Hardware Eligibility Letters


            
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  Roadway Departure Safety
                Strategic Approach
                Keep Vehicles on the Road
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                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-132
																																				February 9, 2006
																																				NCHRP 350
																																				Sign Support Systems
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Break Out CouplerSS-119
																																				February 27, 2003
																																				NCHRP 350
																																				Northwest Pipe Company
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Square Slipbase, PozLoc in weak soil, and Pozloc MailboxSS-99
																																				October 23, 2001
																																				NCHRP 350
																																				Transpo Industries, Inc.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Dual and Triple Posts on double-necked couplingsSS-81
																																				January 20, 1999
																																				NCHRP 350
																																				S-Square Tube Products
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				NEX-TUBE 50.8-mm octagonal steel, 12 or 14 gage tubes in anchor or direct bury, strong and weak soilSS-68H
																																				December 26, 2001
																																				NCHRP 350
																																				Xcessories Squared
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Modification to 8-inch 3-bolt slip bases – Revised concrete footer for weak soilSS-63
																																				July 2, 1996
																																				NCHRP 350
																																				S Square Tube Products
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Perforated square steel tube sign supportsSS-53A
																																				March 19, 1996
																																				NCHRP 350
																																				Lancaster Composite
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Direct Bury acceptance of some SS-53 posts in std soil**SS-30
																																				September 17, 1992
																																				NCHRP 350
																																				Hapco Division
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Cast Aluminum Shoe Base for Motorist Aid Call box SupportsSS-17C
																																				July 10, 2003
																																				NCHRP 350
																																				Transpo Industries, Inc.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Type A Break Safe System sign support systemSS-09A
																																				April 7, 1989
																																				NCHRP 350
																																				Franklin Steel
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Specify steel as ASTM A499-81, Grade 60
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