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FHWA Home / Safety / Roadway Departure / Safety Eligibility Letter

Safety Eligibility Letter CC-120B

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1200 New Jersey Ave. S.E.
Washington, D.C. 20590

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U.S. Department of Transportation
Federal Highway Administration

January 28, 2014

Reply Refer To:

Mr. Gerrit A. Dyke, P.E.
Barrier Systems, Inc.
3333 Vaca Valley Parkway, Suite 800
Vacaville, CA 95688

Dear Mr. Dyke:

This letter is in response to your request for the Federal Highway Administration (FHWA) to review a roadside safety system for eligibility for reimbursement under the Federal-aid highway program.

Name of system: X-Lite Tangent and X-Lite Flared Soil Plate Modification
Type of system: W-Beam Guardrail Terminal
Test Level: NCHRP 350 Test Level 3 (TL-3)
Original Testing conducted by: Safe Technologies, Inc.
Finite Element Analysis conducted by: Politecnico di Milano, Italy
Task Force 13 Designator: SEW23B Tangent; SEW24B Flared
Date of request: July 16, 2013
Date initially acknowledged: December 17, 2013

The following device is eligible, with details provided in the form which is attached as an integral part of this letter:

Based on a review of FEA Analysis and Verification and Validation as per FHWA Memorandum “Roadside Safety Hardware-Federal-aid Reimbursement Eligibility Process�, Dated May 21, 2012 of the modified device compared to original crash test results submitted by the manufacturer certifying the device described herein meets the crashworthiness criteria of the National Cooperative Highway Research Program (NCHRP) Report 350, the device is eligible for reimbursement under the Federal-aid highway program. Eligibility for reimbursement under the Federal-aid highway program does not establish approval or endorsement by the FHWA for any particular purpose or use. The FHWA, the Department of Transportation, and the United States Government do not endorse products or services and the issuance of a reimbursement eligibility letter is not an endorsement of any product or service.

Roadside safety devices should meet the guidelines contained in NCHRP Report 350 (Report 350) if tested prior to January 1, 2011, or the American Association of State Highway and Transportation Officials’ Manual for Assessing Safety Hardware (MASH) if tested after that date. The FHWA Memorandum "Identifying Acceptable Highway Safety Features", dated July 25, 1997, provides further guidance on crash testing requirements of longitudinal barriers.

The modified device and supporting documentation are described in the attached form.

Summary and Standard Provisions
Therefore, the system described and detailed in the attached form is eligible for reimbursement and may be installed under the range of conditions tested.

Please note the following standard provisions that apply to FHWA eligibility letters:


Sincerely yours,

Signature of Michael S. Griffith

Michael S. Griffith
Director, Office of Safety Technologies
Office of Safety


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