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STREET TREE REMOVAL APPLICATION <br /> CITY OF EUGENE NEW PUBLIC LIBRARY <br /> 100 West 10 Avenue <br /> Eugene, OR 97401 <br /> Page 14 <br /> A comprehensive environmental impact assessment of the effects of <br /> removing the proposed trees was conducted by Salix Associates and <br /> provides support for this project. (Attachment E) <br /> (5) The topography of the land and the effect of the felling on erosion, soil <br /> retention, stability of earth, flow and character of surface waters and <br /> steams, and protection of nearby trees and windbreaks. <br /> This is a flat, urban site. The difference between the elevations of the <br /> lowest and highest points on the site is approximately one foot. The site <br /> is almost entirely covered with paving and an existing structure. The <br /> removal of the street trees will have very little impact upon erosion, soil <br /> retention, stability of earth or the flow of surface waters. The existing <br /> street trees to remain will be protected with a six foot high chain link fence <br /> installed using as few underground fence posts as possible and utilizing a <br /> surface mounted plate secured with anchor bolts. This fencing system will <br /> minimize the impact to the existing root zones of the trees to remain while <br /> providing the protection of a permanent fence. Upon completion of the <br /> Library building and associated site development, the fencing will be <br /> removed. <br /> The proposed site development will increase the amount of permeable <br /> surface area. Most of the existing trees are planted in tree wells <br /> surrounded by concrete. The exposed surface area around the trees to <br /> remain will increase. Additional new planted areas will be added. The <br /> proposed development will reduce the amount of surface runoff from the <br /> site. In addition, better penetration of water into the root zones of the <br /> trees and should result in healthier trees. <br /> (6) Except as provided in subsection (7) of this subparagraph, no motorized <br /> vehicles, other than vehicles with rubber tires shall be used to remove <br /> trees from a lot, nor shall a road be constructed as part of any logging <br /> permit. <br /> This is an urban site now fully covered with paving and existing structures. <br /> Given the fully paved site and current use as a parking lot, there will be no <br /> environmental impact from the use of equipment other than vehicles with <br /> rubber tires. <br />