3A Public Hearing 2008 0303 - Laserfiche WebLink

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Davidon Homes, July 2007 HortScience, Inc. Tree Report, Woodside Apartments Page 8 Tree Preservation Guidelines The goal of tree preservation is not merely tree survival during development but maintenance of tree health and beauty for many years. Impacts can be minimized by coordinating any construction activities inside the TREE PROTECTION ZONE. The following recommendations will help reduce impacts to trees from development and maintain and improve their health and vitality through the clearing, grading and construction phases. Design recommendations 1. Any plan affecting trees should be reviewed by the Consulting Arborist with regard to tree impacts. These include, but are not limited to, improvement plans, utility and drainage plans, grading plans, landscape and irrigation plans and demolition plans. 2. A TREE PROTECTION ZONE shall be established for trees to be preserved. The TREE PROTECTION ZONE for trees #341, 343 and 345 shall be defined at the edge of construction on the north (approximately 5' from the trunks), and at the driplines in all other directions. 3. No new underground services including utilities, sub-drains, water or sewer shall be placed In the TREE PROTECTION ZONE Wltilout the approval Of the ConSUlting Arborist. 4. Any herbicides placed under paving materials must be safe for use around trees and labeled for that use. 5. Irrigation systems must be designed so that no trenching will occur within the TREE PROTECTION ZONE. Pre-construction treatments and recommendations 1. Prior to the start of demolition, the Consulting Arborist shall meet with the demolition contractor to identifi~ trees slated for preservation and removal, review the location of tree rotecti n endn rocedures and the need f r work p g, o p o clearance around trees. 2. Erect fendng to completely enclose the TREE PROTECTION ZONE prior to demolition, grubbing or grading. Orange plastic fencing is acxeptable as protective fendng. Fences are to remain until all grading and wnstrucbon is completed. 3. Prune trees #337, 338, 340, 341, 343 and 345 to provide clearance, as needed. All pruning shall be completed by a Certfied Arborist or Tree Worker and adhere to the Tn3e Pruning Guidelines of the International sodety of Arboriculture. Brush shall be chipped and spread beneatti the trees within the TREE PROTECTION ZONE. 4. To help ensure trees survive grading and soil compaction, trees #341, 343 and 345 should be irrigated once a month for the duration of the time prior to construction. The goal of irrigating the trees is to wet the top 2' b 3' of soil. Soaker hoses placed in the existing landscape area and allowed to run for 24 hour period should ~ suffldent. Alternatively, soil berms can be constructed at the driplines of the trees and then flood the berms one to two times per irrigation. Recommendations for tree protection during construction 1. No grading, construction, derrwlition or other work shall occur within the TREE PROTECTION ZONE. Any modifications must be approved and monitored by the `: Consulting Arborist.