1. Report No.
FHWA NHI-05-077 |
2. Government Accession No. |
3. Recipient's Catalog No. |
4. Title and Subtitle
TIDAL HYDROLOGY, HYDRAULICS AND SCOUR AT BRIDGES
First Edition |
5. Report Date
December 2004 |
6. Performing Organization Code
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8. Performing Organization Report No.
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7. Author(s)
L.W. Zevenbergen, P.F. Lagasse, and B.L. Edge
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9. Performing Organization Name and Address
Ayres Associates
3665 JFK Parkway
Building 2, Suite 200
Fort Collins, Colorado 80525 |
10. Work Unit ( TRAIS)
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11. Contract or Grant No.
DTFH61-01-P-00477 |
13. Type of Report and Period Covered
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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 N. Fairfax Drive, Suite 800
Arlington, Virginia 22203 |
| 14. Sponsoring Agency Code |
15. Supplementary Notes
Project Manager: Dr. Larry Arneson
Technical Assistants: Joseph Krolak, Jorge E. Pagán-Ortiz, Philip Thompson, J. Sterling Jones, FHWA; John Hunt, Ayres Associates
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| 16. Abstract The purpose of this manual is to provide guidance on hydraulic modeling for bridges over tidal waterways. This document includes descriptions of: (1) common physical features that affect transportation projects in coastal areas, (2) tide causing astronomical and hydrologic processes, (3) approaches for determining hydraulic conditions for bridges in tidal waterways, (4) applying the hydraulic analysis results to provide scour estimates.
By using the methods in this manual, better predictions of bridge hydraulics and scour in tidal waterways will result. In many cases, simplified tidal hydraulic methods will provide adequate results. However, when the simplified methods yield overly conservative results, use of the recommended modeling approaches will provide more realistic predictions and hydraulic variables and scour.
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17. Key Words
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18. Distribution Statement
This document is available to the public from the National Technical Information Service, Springfield, Virginia 22161 703-487-4650 |
| 19. Security Classif. (of this report) Unclassified |
20. Security Classif. (of this page)
Unclassified |
21. No. of Pages
168 |
22. Price |
