Agriculture Reference
In-Depth Information
significant amount of water that moved at a sufficient speed and force to
cast the leaves uphill from the swale.
Managing storm water is one of the important purposes of landscape
grading. In addition to modifying existing topography to accommodate
the various program elements, further modification of the topography
has the purpose of redirecting surface water flow from places water is not
wanted to other locations on the project site. Storm water management
can take many forms and includes a variety of systems.
Figures 14.3-a and 14.3-B Drainage problems: Handicap parking space (A), Apartment parking lot (B)
Scenes such as the ones shown in Figures 14.3-A and 14.3-B illus-
trate storm water drainage problems. Unwanted storm water has been left
standing in the handicap parking space in Figure 14.3-A, making the space
temporarily unusable. This situation could have, and should have, been
avoided. In this case, one grading solution would have been to change the
slope of the parking lot so that surface water is directed away from the
curbs, to either a planting area or driveway. Another solution, if the topog-
raphy would not allow surface water to be directed to another location,
would have been to install a catch basin where the water is now collecting.
The standing water in Figure 14.3-B is the result of several possible causes:
1.
An inadequate grading plan created a depression where storm water could
collect.
Search WWH ::




Custom Search