06/09/2010 P&Z Packet - Laserfiche WebLink

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Assigned CanoDv Cover Value Planting Location (for new trees) Interior parking lot islands Within less than 7' of vehicular hardscape edge 7' -12' from vehicular hardscape edge Assigned Canopy Coverage Value* 100% of the canopy square footage 50% of the canopy square footage 25% of the canopy square footage Square feet (SF) of canopy coverage assigned to each deciduous tree* Large Tree 1200959 SF, or 600425 SF 300238 SF 5}01199 SF per tree in islands with 1 or 2 treesla -3-er t_ Medium Tree 499 -500 SF 245 -250 SF 123 125 SF Small Tree 250 SF 125 SF NA Existing Tree: 6 -12 "dbh 1900 SF 950 SF NA Existing Tree: 12+ "dbh 2850 SF 1425 SF NA 1 Attachment 2: Landscaping and Tree Preservation Standards - REVISED May 26, 2010 4 Canopy Cover (C). The purpose of this requirement is to mitigate the effects of vehicular hardscape by establishing tree canopy cover to intercept rainfall, protect pavement from sun deterioration, reduce the heat island affect, and improve aesthetics. Vehicular hardscape areas includes loading drives, parking lots, driveways, dropoffs and other areas covered with a hard surface intended for vehicles. a. The required minimum canopy coverage for all uses is 40 %. coch Icvcl is described in the- fellewing le: Level Miningern-Ganepy Cover- Percent 25% 6-2 69% b. The following equation shall be used to calculate required canopy coverage: Vehicular Hardscape (Square Feet) x Canopy Cover Percent = Required Minimum Canopy Cover (Square Feet) The total of the assigned canopy coverage values for all the trees in or near the vehicular hardscape must be equal or greater than the required minimum. Pervious pavements are considered 50% hardscape. c. The assigned canopy coverage value of each tree is based on planting location, tree size and anticipated tree canopy size 15 years after planting. The assigned canopy cover value to each deciduous tree is described in the following table and illustrations: Page 4 • • •