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Corrugated Steel Pipe Institute, “Handbook of Steel Drainage & Highway Construction,” 2nd Canadian Edition, American Iron and Steel Institute, 2007.

has been cited by the following article:

  • TITLE: Relative Depth Effects on Corrugated Culvert Roughness

    AUTHORS: Jonathan Scott Toews, Shawn Paul Clark

    KEYWORDS: Culverts; Fish Passage; Low Flows; Roughness; Manning’s Equation

    JOURNAL NAME: Journal of Water Resource and Protection, Vol.4 No.10, October 30, 2012

    ABSTRACT: Fish passage is important to the overall health of an ecosystem. Therefore, it is important to be able to accurately predict flow conditions within a stream crossing for high and low flow periods. This paper evaluates the effect of relative water depth on the hydraulic roughness of culverts at low discharge. A 21 m long, 0.8 m diameter corrugated steel pipe with 0.068 × 0.013 m annular corrugations was used. For relative depths below 0.5, Manning’s n was found to increase with decreasing relative depth. An equation was developed to predict relative depths below 0.5 within a corrugated steel pipe based on the corrugation height, slope and culvert diameter. While Manning’s equation does perform reasonably well, the percent difference from the measured to predicted water levels warrants the use of an additional prediction method at low flows.