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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
																								DateSort descending
																								Testing
																								Manufacturer
																								Hardware Type
																								Device DescriptionLS-23
																																				February 7, 1991
																																				NCHRP 350
																																				PrecisionForm
																																				Luminaire Supports
																																				Revision to PF200-1 breakaway coupler.SS-23
																																				March 14, 1991
																																				NCHRP 350
																																				
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				New Jersey Breakaway CouplingsCC-15
																																				March 27, 1991
																																				NCHRP 350
																																				---
																																				Barrier Terminals and Crash Cushions
																																				Eccentric Loader Terminal (ELT) (Operational) Modified Eccentric  Loader Terminal (MELT) (Operational)SS-24
																																				May 1, 1991
																																				NCHRP 350
																																				Unistrut Corp.
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Triangular Slip Bases for Square Tube Sign Supports.SS-25
																																				June 4, 1991
																																				NCHRP 350
																																				
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				a. Single or dual 4"x4" wood, undrilled
b. Single 6"x8" wood with 3.0" holes
c. Single 6"x6" wood with 2.0" holes
d. Single 4"x6" wood with 1.5" holes
e. Dual W6x12 steel post on slip base
 (up to 18 ppf for dual supports OKLS-24
																																				July 22, 1991
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Revisions to TB-1, TB-2, TB-3 Cast aluminum transformer basesLS-25
																																				October 10, 1991
																																				NCHRP 350
																																				Utah DOT
																																				Luminaire Supports
																																				Four-bolt luminaire slip base.B-16
																																				October 24, 1991
																																				NCHRP 350
																																				Barrier Systems, Inc.
																																				Longitudinal Barriers and Bridge Rails
																																				Quickchange Moveable Median Barrier for use in permanent installationsCC-16
																																				October 24, 1991
																																				NCHRP 350
																																				Syro Steel Co.
																																				Barrier Terminals and Crash Cushions
																																				Advanced Dynamic Impact Extension Module (ADIEM), terminal only.SS-13B
																																				December 12, 1991
																																				NCHRP 350
																																				Marion Steel
																																				Sign Supports, Mailboxes, and Delineator Posts
																																				Permit threaded spacers to lap splice design
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