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}o <br />To: <br />From: <br />Date: <br />Subject: <br />Orono Planning Commission Members <br />Ron Moorse. City Administrator <br />Jeanne A. Mabusth. Building & Zoning Administrator <br />June 18, 1993 <br />/S^1838 Robert Owens, 1700 Bohn ’s Point Road - <br />Conditional Use Perrait/Variance - Public Hearing <br />The applicant has applied for a conditional use permit to allow repairs to a lakeshore <br />bank that sustained damaged in the 1987 back-to-back 100 year storms. Applicant suspects <br />either poor workmanship or design failure created the recent panial collapse of the existing <br />bank. The 1987 method of restoration involved placement of geotechnic fabric supported by <br />substructure, but obviously the underlying support structure was inadequate. Applicant is <br />hesitant to return to the same method and seeks a more permanent solution. The new proposal <br />involves the installation of two tiers of concrete blocks with a geo-grid support system. As of <br />ti:is writing we have not received the design tor the support structure, but we have been advised <br />that the necessary soil borings were completed on the 16th. The Engineer s final report will be <br />pre.sented to the* Planning Commission on Monday, June 21st. The following ordinance is <br />pertinent to the review; <br />Section 10.03. Subd. 19 - Conditional use permit required for the installation of retaining <br />walls within the lakeshore protected area and for land alterations involving the movement <br />of earth in e.xcess of 100 cubic yards. <br />List of E.xhibits <br />A - Application <br />A-1 Applicant’s letter of May 27, 1993 <br />A-2 Applicant’s Letter of June 17, 1993 <br />B - Property Owners List <br />C - Plat Map <br />D - GME Consultants, Inc. Repon October 19, 1992 <br />E - Section of Block Retaining Wall <br />F - Photographs <br />G - Gustafson Report June 8. 1993 <br />H - Packet of Permit Information for Stonn Damage Repair of 1987-88 <br />I - Topographic Survey <br />Review of Application <br />The subject property received severe damage from the 1987 stoniia. The retaining wall <br />that runs along the shared lot line of die subject property and the property owner to the south <br />was installed to replace an existing wall that had been completely destroyed. Tlie lakeshore bank