HYDRAULIC THEORY FOR DESIGN OF STORM-WATER INLETS

THE CAPACITY OF MANY STORM-WATER INLETS CAN BE FOUND BY COMPARING THE FLOW INTO THE INLET WITH THE FLOW INTO A WIDE OPENING. IN THIS MANNER, FORMULAS ARE DERIVED FOR THE DESIGN OF CURB-OPENING INLETS WITHOUT GUTTER DEPRESSION, GRATE INLETS, AND COMBINATION INLETS, WITH OR WITHOUT GUTTER DEPRESSION. THE FORMULAS HAVE BEEN SUBSTANTIATED WITH NUMEROUS TEST DATA. THE CHARACTERISTICS OF OTHER TYPES OF INLET ARE ALSO MENTIONED. IT IS FOUND THAT THE MOST- EFFICIENT TYPES ARE THE COMBINATION INLET AND THE GRATE INLET. IN BOTH CASES, THE GRATE SHOULD HAVE ONLY LONGITUDINAL BARS. WHEN THE STREET GRADE IS STEEP AND GUTTER DEPRESSION IS CONSIDERED UNDESIRABLE, A CURB OPENING WITH DIAGONAL NOTCHES IN THE GUTTER MAY BE USED. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/33/33-006.pdf
• Supplemental Notes:
  • Vol 33, pp 83-91, 8 FIG, 5 REF. 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:
  • Li, W H
• Publication Date: 1954

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Third Annual Meeting of the Highway Research Board, Washington, D.C., January 12-15, 1954
• Serial:
  • Highway Research Board Proceedings
  • Volume: 33
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Culvert inlets; Design; Drainage; Drains; Hydraulics; Openings
• Uncontrolled Terms: Inlets
• Subject Areas: Design; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204365
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: May 16 1972 12:00AM