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FHWA > Engineering > Hydraulics > HEC 09 |
Debris Control Structures Evaluation and Countermeasures
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1. Report No. FHWA-IF-04-016 HEC-9 |
2. Government Accession No. | 3. Recipient's Catalog No. | ||||
4. Title and Subtitle Debris Control Structures - Evaluation and Countermeasures Hydraulic Engineering Circular 9 Third Edition |
5. Report Date September 2005 | |||||
6. Performing Organization Code HIBT-20, HFL-15 | ||||||
8. Performing Organization Report No. | ||||||
7. Author(s) J.B. Bradley, D.L. Richards, C.D. Bahner | ||||||
9. Performing Organization Name and Address WEST Consultants, Inc. 2601 25th Street Suite 450 Salem, Oregon 97302 |
10. Work Unit ( TRAIS) | |||||
11. Contract or Grant No. DTFH61-01-Z-00012 | ||||||
13. Type of Report and Period Covered Final Report | ||||||
12. Sponsoring Agency Name and Address Office of Bridge Technology FHWA, Room 3203 1200 New Jersey Avenue SE Washington, D.C. 20590 National Highway Institute 4600 North Fairfax Dr., Suite 800 Arlington, Virginia 22203 | ||||||
14. Sponsoring Agency Code | ||||||
15. Supplementary Notes Project Manager: Brian Beucler, FHWA Technical Assistants: Joe Krolak, Abbi Ginsberg, Jorge E. Pagán-Ortiz, FHWA; Arthur Parola, University of Louisville | ||||||
16. Abstract This circular provides information on debris accumulation and the various debris control countermeasures available for culvert and bridge structures. It is a dual unit update of the first edition published in 1964. This circular presents various problems associated with debris accumulation at culvert and bridge structures, provides a procedure for estimating the potential of debris accumulating at a bridge structure, and provides general guidelines for analyzing and modeling debris accumulation on a bridge structure to determine the impacts that the debris would have on the water surface profile through the bridge structure and the hydraulic loading on the structure. Various types of debris countermeasures for culvert and bridge structures are discussed within this circular. General criteria for selection of these countermeasures and general design guidelines for some of the structural measures are also included in this manual. | ||||||
17. Key Words debris accumulation, debris, culverts, bridges, hydraulic loading, debris-control structures, debris impacts, debris countermeasures, debris management, debris classification |
18. Distribution Statement This document is available to the public from The National Technical Information Service Springfield, VA 22151 (703) 487-4650 http://www.ntis.gov/ | |||||
19. Security Classif. (of this report) Unclassified | 20. Security Classif. (of this page) Unclassified |
21. No. of Pages 179 |
22. Price |
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized
Brian Beucler
Federal Lands Highway
703-404-6353
brian.beucler@fhwa.dot.gov
Joe Krolak
Office of Bridge Technology
202-366-4611
joseph.krolak@fhwa.dot.gov