U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
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This listing contains information on longitudinal barrier system terminals and on crash cushions that have been crash tested and/or determined to meet the criteria of NCHRP Report 350 or the AASHTO Manual for Assessing Safety Hardware. These guidelines recommend crash text matrices and evaluation criteria for both barrier terminals and crash cushions at speeds of 50 km/h, 70 km/h, and 100 km/h for Test Levels 1, 2, and 3, respectively.
No additional test levels are specified for these types of devices.
Information on truck-mounted attenuators (TMAs) is also included in this listing.
For additional information on many of these safety devices, consult the 4th Edition of the AASHTO Roadside Design Guide and the Task Force 13 Guide to Standardized Highway Barrier Hardware.
When considering any crash cushion or barrier terminal, the user is responsible for reading the FHWA letter and attachments and understanding any limitations noted, and for reviewing the manufacturer's literature to ensure proper selection, installation, and maintenance.
Click on the Eligibility Letter number to view copies of letters for the crash cushions and barrier terminals that meet Report 350 or MASH criteria. Devices tested under earlier guidelines that have no TL designation may be unacceptable for use on NHS projects.
Design drawings, installation instructions, and maintenance requirements for most proprietary products may be obtained through the manufacturer's website.