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MINUTES OF THE <br /> ORONO PLANI�TING COMMISSION MEETING <br /> ` Monday,May 16,2005 <br /> 6:00 o'clock p.m. <br /> Buchanich stated the closest portion of the wall would be located 150 feet from the lake. <br /> Rahn stated he would prefer to see a more detailed lake elevation showing the 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 /> Palin stated their choices are block, boulder or Keystone, <br /> Rahn stated another option would be a poured wall, noting that the potential failure of fhe wall is another <br /> concern. <br /> Palm stated they originally considered a poured wall but changed to a keystone wall because they did uot <br /> thiuk 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 appearat�ce from the lake,the screening, <br /> and the amount of distance between the two walls. <br /> Kempf suggested the applicant consider planting shrubs along one of the tiers. <br /> Palm stated their intent is to plant arborvitaes to help screen the wall. <br /> Jurgens stated another 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 iiidicated he did visit the site and in his opinion,givev flle slope, some type of retaining <br /> wall is uecessary. <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 fiill and requested the City Engineer review tt�at issue. <br /> Jurgens noted trees over sia inches were removed from this proUerty and questioned whether a <br /> replacement plan has been proposed or is uecessary. <br /> Gundlach stated every tree that has been removed is not protected by City code. <br /> Buchanich stated Gronberg has done fiill runoff calculations for this site, including the neighbor's runoff. <br /> Buchanich pointed out the site itself l�as a greater than five percent slope,which makes it difficult to <br /> create slopes that are less than five percent. <br /> PAGE 16 <br />