_o <br />4. hin . During the establishment period a minunum 3 ft. x 3 ft: planting, area <br />around each tree shall be maintained with a layer of bark mulch 2-4 inches in depth. The mulch <br />shall be kept at least 2 inches away from the. trunk of the tree, and the mulched planting area <br />around the tree shall be kept free of weeds. <br />5. Pruning. <br />5.1 Dead, broken or split branches shall be pruned at the time of planting. <br />5,2 Trees shall be pruned to remove branches that are crossing, damaged, <br />diseased, .broken, or have included bark. <br />5.3 Trees shall not be topped or reduced in height without prior approval of the <br />Urban Forester: <br />5.4 Trees shall be pruned sv at least two thirds of the tree's height is .canopy <br />with one third of the height being the trunk. <br />5.5 The lower limbs shall be pruned off or tipped back to meet compliance with <br />the requirements for clearance over sidewalks and streets as contained in the Eugene Code, <br />1971. <br />5.6 Initial structural pruning shall be performed at the end` of the three year <br />establishment .period:. A strong acaffold branch structure shall be developed by pruning <br />to select the' primary scaffold branches.. <br />5.7 Pruning shall be performed accor_ ding to the approved Urban Forestry <br />pruning standards and specifications. <br />6. Tree Replacement. Any tree that falls under one or more of the following <br />conditions shall be replaced by the developer ,during the next approved planting season after <br />receipt of the notice of the need to replace the tree. ' <br />6.1 Dead iz'ee: This shall include any tree that has no live growth originating <br />in the. scaffolding branches..,,' <br />. 6.2 Stressed tree. This shall include any tree that has lost a minimum of 50 <br />of its total foliage or, has a reduction of SO% of normal leaf size for that species. <br />6.3 1Von-approved tree. This shall include: any variety of tree that is not listed <br />on the Approved Street Tree Species List, or-that has .not been. approved by the Urban <br />Forester. <br />Administrative Order - 17 <br />