Hydraulics of Iowa DOT Slope-Tapered Pipe Culverts

Details

• Creators:
  Graziano, Frank ; Martin, Brett ; Stein, Staurt ; Umbrell, Ed
• Corporate Creators:
  GKY & Associates
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Office of Research and Development
• Subject/TRT Terms:
  • Concrete culverts
  • Culvert inlets
  • Hydraulics
  • Design
  • Slope-tapered culverts
• Publication/ Report Number:
  FHWA-RD-01-077
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Iowa
• Edition:
  Final Report 1996-1998
• Corporate Publisher:
  Turner-Fairbank Highway Research Center
• Description:
  This report updates the Iowa Department of Transportation design procedures for circular, slope-tapered concrete culverts. The current practice is to use the design coefficients for a square-edged, circular concrete culvert with a headwall that are found in Hydraulic Series No. 5 (HDS-5). New inlet control design constants and entrance loss coefficients were calculated for the slope-tapered culverts and then compared with the HDS-5 coefficients (square edge). In addition, various reducer lengths and taper ratios were also studied to determine what impact, if any, they have on the design coefficients. All of the laboratory testing was done at the Federal Highway Administration's Turner Fairbank Highway Research Center located in McLean, Virginia.
• Format:
  PDF
• Funding:
  DTFH61-95-C-0066
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/14470/dot_14470_DS1.pdf
• File Type:
  [PDF - 980.84 KB]
• Collection(s):
  US Transportation Collection ; Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:e886f1ae593e95ecfb48f591245fcd843a7ce001b10aa92d9f27b2e9deb1e32ed14d47dc2ae8755e9a5d165029ee1eb2573e4e72466544fd9ab468d2eab3987a