Agriculture Reference
In-Depth Information
retention ponds
Retention ponds have become increasingly common in jurisdictions
requiring that storm water be contained and made use of on-site, as
opposed to being directed off-site via a storm water system. The ponds
are designed to maintain a certain level of water, as shown in Figures
14.25-A and 14.25-B. Additional water-holding capacity is provided based
on assumed storm water events. The canal-like basin shown in Figures
14.25-A was designed to allow the upper area of the basin to serve some
purpose such as passive, or in some cases active, recreation uses. The
upper slopes (14.25-B) are planted to hold the soil and to serve as a sur-
face for passive uses such as picnicking or field sports. In the case of Fig-
ures 14.25-A, the upper slopes provide wildlife habitat and serve nature
study purposes, while the area in Figures 14.25-B provides for valuable
park and recreation uses, serving adjacent residential neighborhoods.
Figure 14.25-a
Retention pond with upper slopes
supporting native plants in a residential neighborhood in
Voorhof, the Netherlands
Figure 14.25-B
Retention canal located in a more dense
residential neighborhood in Voorhof, the Netherlands
The example in Figure 14.26 of a retention basin and surround-
ing grassy slopes was designed to serve a diverse range of active and
passive park uses for surrounding neighborhoods. A sandy beach was
