Volume 2-05, Chapter 3 - City of Wichita

Section 3.1 - Stormwater Management Controls Overview
detention ponds, stormwater wetlands, porous surface systems, and, to some extent, other
runoff-detaining or infiltrating facilities.
3.1.2.3 Flood Control
On-Site: Selected stormwater management controls (grassed swales, detention ponds,
stormwater ponds, and stormwater wetlands) may be used in conjunction with other drainage
controls (storm sewers, channels, curbs and gutters, etc.) to safely convey stormwater
through a development in accordance with the stormwater drainage design criteria.
Downstream: Selected stormwater management controls (grassed swales, infiltration
systems, detention ponds, stormwater ponds, and stormwater wetlands) may be used to
retain, detain and otherwise regulate the volume and rates of stormwater discharge from flood
events, as determined by the downstream assessment, in accordance with flood control
criteria.
3.1.3 Selecting Stormwater Management Controls
3.1.3.1 Screening Process
Outlined below is a screening process intended to assist the site designer and design
engineer in the selection of the most appropriate structural controls for a development site,
and to provide guidance on factors to consider in their physical location.
In general, the following four criteria should be evaluated in order to select the appropriate
structural control(s) or group of controls for a development, as summarized in Appendix E,
Table E-1:
• Stormwater Management Suitability;
• Relative Water Quality Treatment Performance;
• Site Applicability; and,
• Implementation Considerations.
In addition, for a given site, the following factors should be considered and any specific design
criteria or restrictions need to be evaluated, as summarized in Appendix E, Table E-2:
• Physiographic Factors;
• Soils; and,
• Special Considerations.
Finally, environmental and other local, State and federal regulations must be considered as
they may influence the location of a structural control on the site, or may require a permit.
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Volume 2, Technical Guidance