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EXERCISE DESCRIPTION
To complete this exercise cover a 10 foot × 10 foot area
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
exercise. To perform the exercise the following will need
to be completed ahead of time or as part of a combined
exercise:
GRADING SCALE
Grading for installation of erosion mat should include the
Pt
Value Criteria Levels
3 Site Grade below mat is smooth
preparation and even
Grade below mat has ridges/
valleys up to 6 inches
Grade below mat has ridges/
valleys over 6 inches
3 Placement Mat is placed parallel to flow
of water
Top edge of mat is not buried
or is less than 6 inches deep
3 Stapling Staples in diamond pattern
Exercise 16
Erosion Mat
Installation
20
3555X_01_ch01-40_p001-048.indd 20 14/06/10 7:48 PM
