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NCHRP 350

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Safety Eligibility Letter B-64C

April 21, 2003

Refer to:  HSA-10/B-64C

Ronald K. Faller, Ph.D., P.E.
Research Assistant Professor
Midwest Roadside Safety Facility
P.O. Box 880601
Lincoln, NE  68588-0601

Dear Dr. Faller:

In your letter dated October 24, 2002, you requested formal Federal Highway Administration acceptance of a W-beam guardrail installation with the support posts set at the hinge point of a 2:1 earth slope.

Safety Eligibility Letter B-64E

March 18, 2003

Refer to: HSA-10/B-64E

Mr. Larry W. Brown, Civil Engineer III
New York State Department of Transportation
Design Quality Assurance Bureau -Bldg 5, Rm 410
Washington Avenue
Albany, NY 12232-0751

Dear Mr. Brown: