Hydraulic Performance of Set-Back Curb Inlets

Details

• Creators:
  McEnroe, B. M. ; Wade, R. P. ; McEnroe, Bruce M. ; Wade, Reuben P.
• Corporate Creators:
  University of Kansas. Dept. of Civil & Environmental Engineering
• Subject/TRT Terms:
  • Curbs
  • Sediment discharge
  • Drainage
  • Flow
  • Design charts
  • Hydraulics
  • Location
  • Openings
  • Performance
  • Size
  More +
• Publication/ Report Number:
  K-TRAN: KU-98-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Corporate Publisher:
  Kansas. Dept. of Transportation
• NTL Classification:
  NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures ; NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION
• Description:
  The objective of this study was to develop hydraulic design charts for the location and sizing of set-back curb inlets. An extensive program of hydraulic model testing was conducted to evaluate the performance of various inlet opening sizes. The grade and cross slope of the pavement was varied as was the water flow in an effort to determine the maximum flow which could be captured by the various inlets. The street model was 50 ft (15.2 m) long with a Type A curb on one side and a Type B curb on the other side. The grade was set at either 0.5%, 1%, 2%, 4%, 6%, 8%, 10%, or 12% and the cross slope was either 2% or 4%. The inlet opening was 10 in. (254 mm) high and the mouth opening length was set at either 4, 6, 8, 10, or 12 ft (1.2, 1.8, 2.4, 3.0, or 3.7 m). All combinations of cross slope, grade, curb type, and inlet opening were tested in an effort to determine the relationship between captured flow and total flow. The set-back curb inlets exhibit consistent hydraulic behavior over a wide range of conditions. Design charts were created and provide a sound basis for the location and sizing of set-back curb inlets.
• Format:
  PDF
• Funding:
  C-1014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/35639/dot_35639_DS1.pdf
• File Type:
  [PDF - 2.19 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:73e9b0ff1c3d13476db5940882a4ba7d38b3a3d27efd05769bef4e129f73e104