Analytical Hydraulic Modeling of Road Culverts

by Rohin S. Saleh, Alameda County Public Works Agency, Fremont, United States,
Ralph Hwang, Alameda County Public Works Agency, Fremont, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource—In Search of Solutions


This paper summarizes the development of a comprehensive analytical methodology and a computer model capable of simulating a wide range of flow phenomena in road culverts. The new flow classification discussed in this paper is based on actual field conditions rather than theoretical inlet/outlet control, and is verified in a physical model study. The computer based analytical process discussed here opens the door for a better understanding of various flow problems in Road culvert, and is intended to replace the use of hypothetical nomographs and some other hand calculation based methodologies.

Subject Headings: Hydraulic models | Highways and roads | Culverts | Mathematical models | Simulation models | Computer analysis | Physical models | Field tests

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