Erosion and Sediment Pollution Control Program Manual.pdf

Use accurate information.
The plan should accurately show the spatial relationships between trees and development. A few feet
can determine whether or not a tree can be preserved. Errors in either tree or construction location
make a tremendous difference in the size of tree preservation zones and the amount of root and
canopy pruning required. Problems caused during the construction phase because of inaccurate
information about tree location and condition can be expensive in terms of tree health, time, and work
interference.
Place utility paths on plans.
Trenches and overhead wires for utilities should be identified on tree preservation plans.
Identify affected trees.
Clearly mark on the grading or site plan any trees that are to be preserved, removed, or pruned, or that
might be encroached upon by buildings, roads, parking lots, or utilities.
Consider alternative plans to minimize construction impacts on suitable trees.
Attempts should be made on grading and site plans to eliminate or minimize construction impacts on
worthy trees by removing less worthy trees and moving or altering grading, buildings, utilities, and other
infrastructure elements. For example, a medium-quality tree might be marked for removal to prevent
encroachment on and pruning of a higher-quality tree. Less suitable trees (in terms of species,
condition, and age) should be marked for removal to provide space for more suitable trees. All dead or
dying trees and hazardous trees should be removed. Only trees that are in good, safe condition should
be saved in parks or near buildings, sidewalks, and streets. Nuisance trees such as mulberry (messy
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