Agriculture Reference
In-Depth Information
Figures 14.8-a and 14.8-B Expanse of lawn graded with a crown to direct water to either side of the central space
slope will be planted with soil-holding shrub and tree plantings. These
plantings will slow down the water moving down the slope, facilitat-
ing absorption of much of the water into the soil before it reaches the
playing field. The undulating slopes in the right part of the photograph
were created to divide surface water, directing portions of the water to
be carried by swales in different directions so as to minimize the con-
centration of storm water flowing across the lawn area. The undulating
landform provides visual interest in what would otherwise be an expan-
sive lawn facing the adjacent street.
In both cases the two sections of the
same sidewalks shown in Figures 14.10-A
and 14.10-B were designed to bring people
from an upper sidewalk to a parking lot
down-slope. The designer had to grade
the area to ensure that storm water was
directed away from the adjoining build-
ing, and at the same time grade the side-
walk so that surface water was directed
with a cross slope to one side of the
sidewalk.
Figure 14.9 Landform created to direct surface water to
other locations on-site
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