HYDRAULICS OF BOX CULVERTS WITH FISH-LADDER BAFFLES

THE PLACEMENT OF TRANSVERSE BAFFLES IN BOX CULVERTS FOR THE PURPOSE OF PROVIDING FOR TRAVERSE OF FISH HAS BECOME INCREASINGLY NECESSARY IN RECENT YEARS. CONSEQUENTLY, MODEL STUDIES WERE MADE TO DETERMINE DESIGN FACTOS FOR BAFFLED CULVERTS AS RELATED TO BAFFLE HEIGHT AND SPACING, AND TO DEVELOP HYDRAULICALLY EFFICIENT BAFFLE SHAPES FOR USE IN THE CULVERTS. THE RESULTS BASED ON THE TREATMENT OF THE BAFFLES AS ROUGHNESS IN A RECTANGULAR CONDUIT, WERE OBTAINED IN THE FORM OF VELOCITY-HEAD COEFFICIENTS; ONE DEPENDENT UPON AND THE OTHER INDEPENDENT OF FRICTION EFFECTS. THE FIRST OF THESE IS GIVEN IN THE FORM OF A DARCY-WEISBACH FRICTION FACTOR, AND THE SECOND, WHICH ACCOUNTS FOR ENERGY COMPONENTS AT ENTRANCE AND OUTLET, IN THE FORM OF AN "ENERGY COEFFICIENT." /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/35/35-016.pdf
• Supplemental Notes:
  • Vol 35, pp 196-209, 6 FIG, 1 TAB, 1 APP. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Shoemaker, R H
  • Mckinley, W R
• Publication Date: 1956

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Fifth Annual Meeting of the Highway Research Board, Washington, D.C., January 17-20, 1956
• Serial:
  • Highway Research Board Proceedings
  • Volume: 35
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Box culverts; Coefficients; Fish ladders; Friction factor; Hydraulics
• Uncontrolled Terms: Baffles
• Old TRIS Terms: Velocity head
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204370
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 15 1971 12:00AM