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Barrier Terminals and Crash Cushions

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Safety Eligibility Letter CC-12K

August 28, 2002

HSA-10/CC12K

Hayes E. Ross, P.E., Ph. D.
Professor Emeritus and Research Engineer
Texas Transportation Institute
3135 TAMU
College Station, TX 77843-3135

Dear Dr. Ross:

Safety Eligibility Letter CC-12L

April 11, 2003

HSA-10/CC12L

Hayes E. Ross, Jr., P.E., Ph. D.
Professor Emeritus and Research Engineer
Texas Transportation Institute
3135 TAMU
College Station, TX 77843-3135

Dear Dr. Ross:

Safety Eligibility Letter CC-12Q

Safety Eligibility Letter - CC-12Q

Download Version
PDF [88 KB]

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U.S. Department of Transportation
Federal Highway Administration

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

March 15, 2010