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Attachment 2: Landscaping and Tree Preservation Standards - REVISED May 26, 2010 <br />following table are recommended from the center of the tree trunk to avoid future <br />conflicts: <br />Tree and Utility Saacinq Recommendations <br />Utility <br />Distance to Center of Tree <br />Lights, Utility Poles, Fire Hydrants <br />10' <br />Water, Sanitary, Storm and Gas lines <br />6' from the center of the line. <br />Conduit for dry utilities (electric, cable) <br />3' <br />Utility clean outs and access points <br />3' <br />Overhead utility lines (consult utility <br />company for additional requirements) <br />5' to mature tree canopy (may require <br />trimming, topping is prohibited, see <br />Section Q.10.f) <br />d. Clear Vision Area for Local Residential Roads: Shall <br />mean the triangular area of a corner lot formed by the <br />intersection of the right -of -way (ROW) lines and a line <br />connecting them at points 20' from the intersection <br />unless otherwise directed by the City (see illustration). <br />Within this area, visibility shall be unobstructed <br />between a height of 30 inches and 8 feet above the <br />center line grades of the intersecting roads. <br />C16r Vi . Area <br />— ndiroti by ROW Ilrte <br />ROdN lint <br />Orb kr, <br />Clear Vision Area for County Roads: Shall be <br />determined on a case by case basis, depending on the road alignment, grading, traffic <br />speed and the nature of the intersection and is subject to County and City review. <br />e. The minimum plant size requirements are described in the following table: <br />Minimum Plant Size Requirements <br />Page 12 • <br />Plant Type <br />Minimum Size* <br />Large trees <br />Bare Root - 1.75" <br />Balled and Burlapped or Container - 2" caliper <br />Medium and small trees <br />Bare Root - 1.5" <br />Balled and Burlapped or Container - 1.5" caliper <br />Evergreen trees <br />6' height <br />Large shrubs <br />3 gallon container <br />Medium shrubs, small shrubs and <br />groundcovers <br />1 gallon container <br />Ornamental grasses and perennials <br />4" pot <br />* City may limit bare root plantings in areas of high visibility. In selected situations the City may <br />allow ten (10) whip bare root plantings, or five (5) 3/4" caliper bare root plantings to be <br />substituted for 1 large tree. Bare root plantings must be protected with rodent guards. <br />f. All boulevard trees shall be balled and burlapped and a minimum size of 2" caliper <br />g. Installation and Maintenance <br />1) Installation: Proper planting is the first and most important step toward establishing <br />healthy and low maintenance vegetation. All plantings shall be installed in <br />accordance with standard practices of horticultural professionals. <br />• <br />• <br />