Environmental Engineering Reference
In-Depth Information
FIGURE 9-3.
Portion of the Mission Trail restoration project grading plan indicating biochannels used to
concentrate water following flood flows to prevent large ponded areas. Also shown is the slope created by
the elevation change and island mounds, which will serve as a refuge during lower flood events.
Grading Plan
Grading plans, commonly referred to as earthwork plans, document what is to occur to the ground
surface as a result of implementing your project plan (fig. 9-3). Any manipulation of the ground
plane—whether realigning the course of a streambed or recontouring the ground plane to remove
a thin layer of soil containing a seed bank of weedy species—requires the development of grading
plans. Significant data collection and engineering efforts commonly are required to prepare earth-
work plans. Again, the need for professional assistance is related to the size and complexity of the
project and the potential for liability, especially from adjacent landowners. In many cases, permis-
sion to conduct a project on government land comes with the condition that the plans be prepared
by licensed professionals. On other lands, generally the government of jurisdiction will require the
issuance of a grading permit, which requires a licensed professional's signature
on a grading plan.
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