Reducing Detention Volumes with Improved Outlet Structure
Publication: Journal of Irrigation and Drainage Engineering
Volume 134, Issue 6
Abstract
To reduce required detention volume, a detention basin outlet structure (DBOS) was tested that can control the maximum allowable outlet discharge rate independent of the upstream driving head. Unlike traditional outlet control structures, such as culverts, orifices, and weirs, whose maximum discharge represents a single point in time on the outflow hydrograph, the DBOS can discharge at the maximum allowable discharge for an extended period of time, thus reducing the required detention volume. Data are presented and methods discussed regarding techniques for altering the head–discharge characteristics of the DBOS in order to meet various head–discharge requirements.
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Acknowledgments
Gratitude is expressed to AMCOR Precast (Salt Lake City) and Red Valve Company, Inc. (Carnegie, Pa.) for providing the precast concrete structure and the flexible rubber control valve, respectively, and to Gardner Engineering and Red Valve for funding this project.
References
Marcoon, K., and Guo, Q. (2004). “Detention basin retrofit; optimization of water quality improvement and flood control.” Proc., World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management, ASCE, Reston, Va., 449–458.
Randall, C. (1984). “Detention pond outlet design for pollution control.” Proc., Water for Resource Development, ASCE, Reston, Va., 350–354.
Sandvik, A. (1985). “Proportional weirs for stormwater pond outlets.” Civ. Eng. (N.Y.), 55(3), 54–56.
Urbonas, B., ed. (1985). Stormwater detention outlet control structures, American Society of Civil Engineers, New York.
Urbonas, B., and Stahre, P. (1993). Stormwater best management practices and detention, for water quality, Drainage, and CSO Management, Prentice–Hall, Englewood Cliffs, N.J.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 134 • Issue 6 • December 2008
Pages: 824 - 830
Copyright
© 2008 ASCE.
History
Received: Jul 6, 2007
Accepted: Feb 1, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
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