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t . <br />I <br />MINUTES OF THE <br />ORONO PLANNING COMMISSION MEETING <br />MoMiay, May 16,2005 <br />6:00 o’clock p.ai. <br />Biichanich stated the closest portion of the wall would be located I SO feet from the lake. <br />Rahn stated he would prefer to see a more detailed lake elevation showing ,he walls and the screening for <br />the walls. Rahn inquired whether a decision has been made on the type of materials for the walls. <br />Palm stated their choices are block, boulder or Keystone. <br />Rahn stated another option would be a poured wall, noting that the potential failure of the wall is another <br />concern. <br />Palm staled they originally considered a poured wall but changed to a keystone wall because they did not <br />think the City would approve a poured wall. Palm stated a Keystone wall would be an engineered wall. <br />Bremer stated one of the concerns with the retaining wall is the appearance from the lake, the screening. <br />and the rnnount of distance between the two walls. <br />Kempf suggested the applicant consider planting shrubs along one of the tiers. <br />Palm slated their intent is to plant arborvitaes to help screen the wall. <br />Jurgens stated anodier point to consider is the fact that at one point the wall would not be perpendicular to <br />the lake but rather to the neighboring property and that some type of screening for the neighbor would be <br />desirous. Jurgens indicated he did visit die site and in his opinion, given the slope, some type of retaining <br />wail is necessary. <br />Jurgens expressed a concern regarding a small collection basin on the north end of the garage with a <br />12-inch pipe over to the swale. Jurgens questioned whether the swale would be able to handle all the <br />runoff if the 12-inch pipe is full and requested the City Engineer review that issue. <br />Jurgens noted trees over six inches were removed from this property and questioned whether a <br />replacement plan has been proposed or is necessary. <br />Gundlach stated every tree that has been removed is not protected by City code. <br />Buchanich stated Oronberg has done full runoff calculations for this site, including the neighbor’s runoff. <br />Buchanich pointed out the site itself has a greater than five percent sir pe, which makes it difficult to <br />create slopes that are less than five percent <br />PAGE 16