USA Banner
  U.S. flag
              An official website of the United States government Here's how you knowOfficial US Government Icon
              **Official websites use .gov**A **.gov** website belongs to an official government organization in the United States.
            Secure Site Icon
              **Secure .gov websites use HTTPS**
                  A **lock** ( A locked padlock ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. 
 U.S. Department of Transportation Icon United States Department of Transportation
 Search DOT
            Search
                    About FHWAFHWA Organization
                Headquarters Offices
                Field Offices
                Strategic Plan
                Business Opportunities
                Staff Directories
                Careers
                Highway History
                Contact UsProgramsAcquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                Safety
                Browse by TopicsResourcesCore Highway Topics
                Federal Aid Essentials
                Automation
                Complete Streets
                Laws and Regulations
                Policy & Guidance Center
                Section 508
                Publications and Statistics
                Professional Development
                National Highway Institute
                Resource Center
                Accessibility Resource Library
                FHWA Research LibraryNewsroomPress Releases
                Speeches & Testimony
                Photos
                Videos
                Media ContactsMenu FHWA Highway Safety Programs Home
                        Safety
                        Roadway Departure Safety
                        Reduce Crash Severity
                        Hardware Eligibility Letters


            
            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
																								Date
																								Testing
																								Manufacturer
																								Hardware TypeSort ascending
																								Device DescriptionB-11
																																				December 4, 1989
																																				NCHRP 350
																																				International Barrier Corp.
																																				Longitudinal Barriers and Bridge Rails
																																				MK-7HV Cement-Stabilized Sand Filled Barrier (normal profile IBC barrier) (Experimental)B-220
																																				May 3, 2011
																																				NCHRP 350
																																				Hill & Smith. Inc.
																																				Longitudinal Barriers and Bridge Rails
																																				Zoneguard, Portable Steel Barrier Expansion Joint UnitsB-200
																																				January 28, 2010
																																				NCHRP 350
																																				MWRSF
																																				Longitudinal Barriers and Bridge Rails
																																				WV Steel BR for Nail Laminated DeckB-179
																																				July 11, 2008
																																				NCHRP 350
																																				Energy Absorption, Inc
																																				Longitudinal Barriers and Bridge Rails
																																				TL-1 Triton Water Filled BarrierB-163
																																				August 30, 2007
																																				NCHRP 350
																																				S.I. Story Lumber Co.
																																				Longitudinal Barriers and Bridge Rails
																																				TimBarrier StreetGuard PlusB-150C
																																				November 19, 2010
																																				NCHRP 350
																																				Gregory Highway Products
																																				Longitudinal Barriers and Bridge Rails
																																				Gregory Mini Spacer (GMS) W-Beam GuardrailB-141B
																																				May 8, 2006
																																				NCHRP 350
																																				Trinity
																																				Longitudinal Barriers and Bridge Rails
																																				TL-3 CASS w/ 32.5-foot post spacingB-134D
																																				August 29, 2008
																																				NCHRP 350
																																				Energy Absorption, Inc.
																																				Longitudinal Barriers and Bridge Rails
																																				TL-4 VulcanB-123
																																				March 12, 2004
																																				NCHRP 350
																																				Composite Structural Design, LLC
																																				Longitudinal Barriers and Bridge Rails
																																				Temporary steel bridge rail @ TL-5B-110
																																				December 20, 2002
																																				NCHRP 350
																																				Caltrans Materials Engineering and Testing Services
																																				Longitudinal Barriers and Bridge Rails
																																				Texture Guidelines for SS and Vertical Concrete Barriers
  Pagination
    «
            « First
                          ‹
            ‹‹
                          ...
                          116
              117
              118
              119
              120
              121
              122
              123
              124
                          ...
                          ›
            ››
                          »
            Last » U.S. DEPARTMENT OF TRANSPORTATION

**Federal Highway Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

202-366-4000Subscribe to email updates
                    About
  

        
              About FHWA
                Careers
                Org Chart
                Staff Directories
                Work with UsPrograms
  

        
              Acquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                SafetyPolicies, Rights, Legal
  

        
              About DOT
                Accessibility
                Budget and Performance
                Civil Rights
                FOIA
                Information Quality
                No FEAR Act
                Office of Inspector General
                Privacy Policy
                USA.gov
                Web Policies and Notices
                Web StandardsNews & Events
  

        
              Newsroom
                Press Releases
                Speeches & Testimony
                Media Contacts
                Connect with Us