HEC 14: Riprap Apron

10.2 RIPRAP APRON The most commonly used device for outlet protection, primarily for culverts 60 in (1500 mm) or smaller, is a riprap apron. An example schematic of an apron taken from the Central Federal Lands Division of the Federal Highway Administration is shown in Figure 10.4. Figure 10.4. Placed Riprap at Culverts (per Central […]

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HEC-14 Hydraulic Design of Energy Dissipators for Culverts and Channels

Author(s): Philip L. Thompson and Roger T. Kilgore Publisher: FHWA Year: 2006 Links: PDF Subjects: energy dissipator, culvert, channel, erosion, outlet velocity, hydraulic jump, internal dissipator, stilling basin, impact basin, riprap basin, riprap apron, drop structure, stilling well The purpose of this circular is to provide design information for analyzing and mitigating energy dissipation problems […]

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