Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Underground Outlets for Conservation PracticesPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org ASAE ASABE EP425.1 May 2016Keywords: Diversions, Drainage, Sediment control, Terraces, Underground outlets, Waterways 1 Purpose and Scope 1.1 This engineering practice is intended as a guide to engineers and technicians to plan, design, layout, construct and maintain underground outlets for conservation practices. 1.2 This engineering practice applies to underground outlets used for the following applications: 1.2.1 An outlet is needed for terraces, water and sediment control basins, diversions, roof gutter downspout discharge and other similar practices. 1.2.2 A buried conduit can be installed to safely convey excess surface water to an adequate outlet. 1.2.3 Where land use, equipment operation, stability problems, erosion hazards, climatic conditions or space limitations prohibits the use of surface outlets. 1.3 The design of subsurface drains, even those receiving surface flow is not considered in this standard. Refer to ASABE Engineering Practice ASABE EP260, Design and Construction of Subsurface Drains in Humid Areas. (Download PDF) (Export to EndNotes)
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