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Publication Number: FHWA-RD-99-077
Date: December 1998

NCHRP Report 350 Test 4-10 of the New York Two-Rail Curbless Bridge Railing




This report will be of interest to researchers and those who select, locate, and design traffic barriers. It documents the results of a crash test of a New York Two–Rail Bridge Rail. This was the first test of a series intended to evaluate this new bridge rail design. The objective was to see if it meets Test Level Four (TL–4) in NCHRP Report 350. In this test, an 820–kg small car impacted the bridge rail at a nominal speed and angle of 100 km/h and 20 degrees. The test results met all of the evaluation criteria for the test designated as No. 4–10 in NCHRP Report 350.

Michael F. Trentacoste
Director, Office of Safety Research and Development


NCHRP Report 350 Test 4-10 of the New York Two-Rail Curbless Bridge Railing

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1. Report No.


2. Government Accession No. 3. Recipient's Catalog No.
4. Title and Subtitle

NCHRP Report 350 Test 4–10 of the New York Two–Rail Curbless Bridge Railing

5. Report Date
6. Performing Organization Code
7. Author(s)

C. Eugene Buth, William F. Williams, Wanda L. Menges, and Sandra K. Schoeneman

8. Performing Organization Report No.


9. Performing Organization Name and Address

Texas Transportation Institute
The Texas A&M University System
College Station, Texas 77843–3135

10. Work Unit No. (TRAIS)
11. Contract or Grant No.


12. Sponsoring Agency Name and Address

Office of Safety and Traffic Operations Research and
Federal Highway Administration
6300 Georgetown Pike
McLean, Virginia 22101–2296

13. Type of Report and Period Covered

Test Report
October 1998 – November 1998

14. Sponsoring Agency Code
15. Supplementary Notes

Research Study Title: Evaluation and Crash Testing of New York's Two–Rail and Four–Rail Bridge Rail, and Box Beam Transition
Contracting Officer's Technical Representative (COTR): Charles F. McDevitt – HSR–20

16. Abstract

This report presents the details and results of New York Two–Rail Curbless Bridge Railing and the results of the small car test: National Cooperative Highway Research Program (NCHRP) Report 350 test designation 4–10, which is the 820–kg passenger car impacting the critical impact point (CIP) at 100km/h and 20 degrees. The New York Two–Rail Curbless Bridge Railing met all requirements for NCHRP 350 test designation 4–10.

17. Key Words

Bridge rail, transition, crash testing, roadside safety.

18. Distribution Statement

No restrictions. This document is available to the public through the National Technical Information Service, Springfield, VA 22161.

19. Security Classification (of this report)


20. Security Classification (of this page)


21. No. of Pages


22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized



United States Department of Transportation - Federal Highway Administration