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10-06-10-PC
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11/9/2015 2:24:27 PM
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10/1/2010 3:37:50 PM
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Planning Commission Agenda
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Planning Commission Agenda
General (2) - Date
10/6/2010
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Impacts to trees <br />Presbyterian Homes of Arden Hills <br />Preliminary Landscape Management Plan <br />Page 2 <br />Tree resources on the site were inventoried and analyzed by Steve Nicholson, a certified forester. The <br />Forester's Report, (dated 7 September 2010), is included in the Appendix to this plan. The report <br />characterizes the general conditions of the site and trees identified as significant according to the city's <br />Zoning Code. It notes the presence of several tree diseases and one soil -borne disease, all of which pose <br />a threat to trees on the site. It further highlights the obvious presence of species such as European <br />buckthorn and honeysuckle which have "heavily invaded" wooded areas of the site. Ash trees are also <br />present on the site, according the report; although the report notes that none of the ash appear to have <br />evidence of the Emerald Ash Borer, the site lies proximate to locations in Saint Paul where Emerald Ash <br />Borer has been identified. <br />A list of significant trees present on the site is included in the tree preservation plan (which is included in <br />the appendix). <br />The Forester's Report analyzed historical aerial photography in an attempt to understand the longer <br />term patterns of vegetation on the site. In 1957, the wooded areas currently present on the site were <br />largely open. When compared to other nearby woodlands, the current woods are relatively young. <br />The report concludes that the wooded areas of the site are in poor condition. The presence of tree <br />diseases (with at least one being untreatable), invasive species, and storm damaged trees, along with <br />the lack of nature regeneration in the wooded areas, do not support the long term viability of the <br />existing trees. <br />The Forester's Report identified 329 significant trees on the site. Sunde Land Surveying identified 317 in <br />a recent survey; 12 trees are not accounted for in this survey, but current investigations are focused on <br />locating those trees and verifying their sizes and conditions. An updated survey and analysis of impacts <br />will be required prior to finalizing this landscape management plan. <br />Construction of the proposed improvements will impact 208 trees, or a total 3939 caliper inches <br />according to the tree survey. In areas unaffected by development activities, 109 trees will remain (a <br />total of 2302 caliper inches). <br />Conditions of trees is dynamic, with the specified condition of a tree in the Forester's Report subject to <br />change as a result of natural decline, weather events, disease, insects, vandalism, and other factors. <br />Ratings, such as those in the tree survey and Forester's Report, speak to current size and condition, and <br />are based on the City of Arden Hills' definitions and standards for significant trees. <br />Types and quantities of preserved trees <br />The proposed development activities will not impact all of the trees on the site. A tree preservation plan <br />has been prepared as a companion to this landscape management plan, and it indicates those trees on <br />the site that are intended to be preserved. The tree preservation plan indicates that 109 significant <br />trees, a total of 2302 caliper inches, will remain once construction is complete. In addition, a significant <br />
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