Optimal Sizing of Exfiltration Trenches
Publication: Journal of Irrigation and Drainage Engineering
Volume 143, Issue 1
Abstract
Optimal sizing of exfiltration trenches for both flood control and water-quality control is investigated for conventional and partially submerged trenches. An analytic formulation is presented, showing that the minimum required trench length for flood control can be determined directly from parameters that characterize the design rainfall, catchment, trench, and porous medium surrounding the trench. It is also shown that the minimum required trench length for water-quality control can be determined directly from the design water-quality depth, exfiltration time that is credited to water-quality control, and parameters that characterize the trench and catchment. Using these analytic relationships, a six-step procedure is presented for sizing trenches that simultaneously meet both flood-control and water-quality control objectives. Implementation of the design methodology is illustrated for both conventional and partially saturated trenches.
Get full access to this article
View all available purchase options and get full access to this article.
References
ASCE. (2012). Design of urban stormwater controls, 2nd Ed., McGraw-Hill, New York.
Chen, C. (1983). “Rainfall intensity-duration-frequency formulas.” J. Hydraul. Eng., 1603–1621.
Chin, D. (2004). “An overview of urban stormwater-management practices in Miami-Dade County, Florida.”, U.S. Geological Survey, Reston, VA.
Chin, D. (2013). Water-resources engineering, 3rd Ed., Pearson, Upper Saddle River, NJ.
Dhakal, N., Fang, X., Cleveland, T., Thompson, D., Asquith, W., and Marzen, L. (2012). “Estimation of volumetric runoff coefficients for texas watersheds using land-use and rainfall-runoff data.” J. Irrig. Drain. Eng., 43–54.
Duchene, M., McBean, E., and Thomson, N. (1994). “Modeling of infiltration from trenches for storm-water control.” J. Water Resour. Plann. Manage., 276–293.
Florida Department of Transportation (FDOT). (2012). Drainage handbook–exfiltration systems, Tallahassee, FL.
Idaho Department of Environmental Quality. (2005). Catalog of stormwater best management practices for Idaho Cities and Counties, Boise, ID.
Maryland Department of the Environment. (2009). Maryland stormwater design manual, Vol. 2, Ellicott City, MD.
Pennsylvania Department of Environmental Protection. (2006). Pennsylvania stormwater best management practices manual, Harrisburg, PA.
South Florida Water Management District. (2012). Environmental resource permit information manual, Vol. 4, West Palm Beach, FL.
Texas Department of Transportation. (2002). Hydraulic design manual, Austin, TX.
U.S. Environmental Protection Agency (U.S. EPA). (2002). “National recommended water quality criteria: 2002.”, Washington, DC.
U.S. Federal Highway Administration (U.S. FHWA). (2009). Urban drainage design manual, 3rd Ed., Washington, DC.
Wenzel, H., Jr. (1982). “Rainfall for urban design.” Urban stormwater hydrology, D. Kibler, ed., American Geophysical Union, Washington, DC, 35–67.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 143 • Issue 1 • January 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Mar 8, 2016
Accepted: Jul 8, 2016
Published online: Sep 21, 2016
Published in print: Jan 1, 2017
Discussion open until: Feb 21, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.