HYDRAULIC PERFORMANCE OF PENNSYLVANIA HIGHWAY DRAINAGE INLETS INSTALLED IN GRASSED CHANNELS

THE CAPACITIES OF THREE DIFFERENT STANDARD INLET GRATINGS INSTALLED IN GRASSED CHANNELS BY THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION WERE DETERMINED IN A GRASSED DRAINAGE CHANNEL EQUIPPED WITH ADJUSTABLE SLOPES. EACH MODEL INLET GRATING WAS BUILT TO HALF THE SCALE OF THE PROTOTYPE AND WAS TESTED UNDER SEVERAL CHANNEL CONFIGURATIONS AND WITH A RANGE OF CHANNEL FLOW RATES. THE CAPACITY OF AN INLET GRATING WAS DETERMINED BY ACTUAL MEASUREMENTS, AND THUS THE EFFICIENCY OF THE GRATING WAS OBTAINED. A SERIES OF CURVES, RELATING EFFICIENCY TO CAPACITY FOR A GRATING, ARE PRESENTED; THEY SHOW THAT, AS MORE WATER FLOWS IN THE CHANNEL TOWARD AN INLET GRATING, THE EFFICIENCY OF THE GRATING DECREASES. /AUTHOR/

  • Supplemental Notes:
    • Rept No 364.4
  • Corporate Authors:

    Lehigh University

    Fritz Engineering Laboratory
    Bethlehem, PA  USA  18015
  • Authors:
    • Appel, E
    • Brune, A W
    • Graf, W H
  • Publication Date: 1973-1

Media Info

  • Pagination: 118 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00204559
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 1974 12:00AM