25 October 2004
These features have been located to intercept and manage the stormwater
drainage in small areas. The storm drain pattern remains the same as in the
conventional system and provides adequate conveyance. Because of the runoff volume
and peak reductions achieved by the LID site design and IMPs, a smaller storm drain
diameter can be used if desired.
Figure 10-8 illustrates that the storage volume required to maintain the pre-
development 2-year 24-hour peak discharge can be met by using distributed stormwater
management. These components can be maintained by the residents, with the
exception of the tree box filter. All of the facilities can be maintained by landscape
maintenance crews, with minimal training. Figures 10-9 to 10-14 illustrate how the LID
features can be incorporated into a residential development.