Hydraulics capacities of various types of inlets

Scale models of gutter inlets were evaluated in a titling laboratory test rig. Road crossfall was held constant at 3 percent and road grade was varied from 1% to 20%. Measurements were made of percentage capture and width of flow. For each inlet type percentage capture was presented graphically as a function of approach flow. As a general rule, percentage capture decreased with increasing slope and with increasing approach flow. Width of flow plotted as a function of q3/8s-3/16 falls in a band within + or - 0.2 metre for values of qs less than 0.0055. Results from tests having qs greater than 0.0055 show widths of flow as great as twice that predicted from the above.

  • Corporate Authors:

    New South Wales. Department of Public Works. Hydraulic Laboratory

    Manly, New South Wales   

    New South Wales. Department of Public Works. Hydraulics Laboratory

  • Publication Date: 1978-2


  • English

Media Info

  • Pagination: 14P
  • Serial:
    • Issue Number: 222

Subject/Index Terms

Filing Info

  • Accession Number: 01440628
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 11:04PM