Agriculture Reference
In-Depth Information
The vertical distance between point E and 97´ is 97.86´ minus 97´ =
0.86´.
S = V / H
.01 = 0.86 / H
H = 0.86 / 0.01
The horizontal distance I from point E = 86'.
Then measure the distance 86´ from point E, and you have the loca-
tion of where 97 is on the tennis court.
The vertical distance between point F and point H is 97.55´ minus
97´ = 0.55´.
S = V / H
.01 = 0.55 / H
H = 0.55 / 0.01
The horizontal distance H from point F to the 97' contour is 55'.
Then measure the distance 55 from point F to where the 97´ is on
the tennis court. Connect the two points of 97´ as in Figure 12.8-C.
Now that we have located the 97´ contour on the tennis court, we
need to connect it to the existing 97´ contours and use them as the sig-
nature swale to carry surface runoff water at a 2.5 percent swale slope,
as shown in Figure 12.18-D.
See Figure 12.18-E to see how the 97´ contour would be drawn to
create the signature drainage swale. Notice the distance of what is
shown as the SHP or points A and B to the beginning of the 97´ contour
swale. The distance is calculated using the formula S = V / H:
Point A was calculated earlier as 97.5. The start of contour 97 is the
distance H at 2.5 percent slope.
S = V / H
0.025 = 1 / H
H = 0.5 / .025
The distance between point A and the 97 contour is 20 feet.
