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EXERCISE DESCRIPTION
To complete this exercise trench and install silt fence in
a V shape across the swale. The point of the V should
EXERCISE SETUP
Review safety concerns with students before beginning
this exercise. Combining this exercise with other drainage
projects in this section will improve the efficiency of the
GRADING SCALE
Grading for installation of silt fence should include the
following scaled criteria:
water flow
Silt fence is at an angle to water
flow
Silt fence is parallel to water
flow
3 Anchoring Bottom of fence is buried
1 foot in ground
Bottom of fence is buried less
than 1 foot in ground
Bottom of fence rests on
surface of ground
Exercise 15
Silt Fence
Installation
19
3555X_01_ch01-40_p001-048.indd 19 14/06/10 7:48 PM
