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FHWA Home / Safety / Roadway Departure / Safety Eligibility Letter

Safety Eligibility Letter B-232

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U.S. Department of Transportation
Federal Highway Administration

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

May 4, 2012

In Reply Refer To:
HSST/B-232

Brian Smith
Trinity Highway Products, LLC
2525 North Stemmons Freeway
Dallas, Texas 75207

Dear Mr. Smith:

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: CASS S3 on 4H:1V slopes
Type of system: Four rope cable median barrier
Test Level: MASH Test Level 3
Testing conducted by: Texas Transportation Institute
Task Force 13 Designator: SGM36
Date of request: July 14, 2011
Date initially acknowledged: July 14, 2011
Date of completed package: July 14, 2011

Decision:
The following device is eligible, with details provided in your enclosed July 14, 2011, letter which is considered an integral part of this finding:

Based on a review of crash test results submitted by the manufacturer certifying the device described herein meets the crash test and evaluation criteria of the American Association of State Highway and Transportation Officials' Manual for Assessing Safety Hardware (MASH), 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.

Requirements
To be found eligible for Federal-aid funding, roadside safety devices should meet the crash test and evaluation criteria contained in the American Association of State Highway and Transportation Officials' Manual for Assessing Safety Hardware (MASH).

Description and Crash Testing
The CASS four-rope cable median barrier, with S3 posts spaced at 10.5 feet, was tested on a 30-foot wide median with 4H:1V slopes.  The barrier was placed four feet down from the slope break point, and subjected to MASH tests 3-10 and 3-11.  The barrier system and tests are both described in your July 14, 2011, letter which is enclosed as an integral part of this finding.  Also enclosed are the test data summary sheets of both tests, and drawings of the barrier.

Findings
Therefore, the system described and detailed in the attached letter is eligible for reimbursement and may be installed under the range of conditions tested when located no further than four feet from the 4H:1V slope break point.  

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

Enclosures

Page last modified on January 17, 2013.
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Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000