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2335 West Highway 3G ■ St. Paul, MN 55113 � �-`� <br /> Bonestroo .��---� <br /> � Rosene Office: 651-G3G-4G00 • Fax: G51-G3G-1311 <br /> Anderliic& www.bonestroo.com <br /> : Associates <br /> Engineers&Architects <br /> Janulry 6, 2006 <br /> ?�1s. Janice Gundlach <br /> Planner <br /> Citv of Orono <br /> Post Of'tice Box 66 <br /> Crystal Bay,MN 5�3?3 <br /> Re: 3S4S North Shore Urive <br /> �ile No. 000139-0�000-0 <br /> Plat tio. 0�-31C 1 <br /> Dear Janice: <br /> 1'Ve llave revie��•ed the site plans aiid preliminaiy plat date� 1 U!19/US that�veie resubnuttecl on 12/?2/OS ti�r tlie pr<�puse�l <br /> improvements at�SdS North Share Drive.The plans propose to subdivide tliree existing lots into a tive lot single fanul}' <br /> subdi�ision.The ezistine plat area is 3.5� acres with 0.0£� acres of wetlaud for a lotal��f 3.i7acres of net plat area. We <br /> have the follo�ving conunents �vitli rebards to engineering matters: <br /> • The proposed retaining walls exce�d 4-feet in hei�ht i�t many areas aild approach 10.5-feet iii height in sc�n�e <br /> areas. I� is uniikely the «�all as sho�vn cau be cr.nsn�ucted along Outlot B on t!�e subject property without <br /> obtaining easements fron�the property o��ner to tlie west. A separate engineered dcsi��n and detail subnutta]is <br /> required fur all walls that are �rcater than 4-feet i:l hciRlit. <br /> • The priva!e street servin�;Lot 1 alid 3 exceeds 9`;�o a!h'orth 5hore Drive. A SO-foot landing area w�itl�grades of <br /> ]ess dlan 2`;o shoulu be provided at the access ��ntu tvo��tl�Shc���e Dtive. <br /> + 'the plans note that se��eral lots will be custon�graded Ly the builder.This is a concei-n as draina�e issues will <br /> likel��arise as -racli lot is graded. 1��e reconunend that a jradi�i,r13n be submitted for the entire site or each lot <br /> ��•ill necd to subnut a grailing plan for revie�v and ap�:OV1I pi'lnf�0 U�JI1llll[lk a LlLlt�dlllc peinlit. <br /> e Drain�gc �a'.culat:ons and subnuttals have indicated thzt raiii�:ardens a�id drainage swales will be utilized to <br /> treat and store stor►r��vat-rr on site. T'he plans must sho���the locations afthese storm t�'ater utilities and provide <br /> drainage easements over them. <br /> • Provide for driveway cul��erts at the private strcet cnh-ances to North Sliore Drive. <br /> • T(�e sanitary se���er service should aot be connected ro the existin�ma�iliole. The t���o services sho�vn�vill need <br /> to be connected to the existing se�ver pipe. <br /> � Each house will need to have its o�vn sanitary<uld�cater service out ro tlie mains. <br /> • The plan i�dicates that the total area dislurbed��ill be 0.3U iic.res. if eradin�for ll�e home�.rain earci�:ns.sti�eets <br /> a�id utilities exceed one acre; cl�e.n the linal pl.�ns �vi;l need to inciu�e a uetailcd temporary and perman.,nt <br /> ero�iun nnd sedii��ent connol plan as required by the I�'PDF'.S pernlit app'ira�ion. <br /> • The consmiction details sho��z�are not tlie city standard details. Shcet CS-1 stiould b� re��ised to show the city <br /> stand�ircl details. <br /> • When the Pinal plans are completed and apprn��ed�ve��ill prepare a cost estimate For the site improvements as a <br /> basis for the financial guarantee required. <br /> • Please see the attached coci-unents from L.ince Hoff regarding stomi se��er improvements and drainage issucs. <br /> 1F}�ou 11ave aiiy questiuus or ii�ecl at�y clarifications please contact rne�t(G�]) E04-4£G3. <br /> Z'ours very truly, <br /> BONFSTP�00, ROSEyE,Ai�DEP.I.iK�f..1SSC�CI.<\7"FS. INi:. <br /> _� <br /> �a�� <br /> Tom Kelloc;g <br /> L'c: Gr��Gappa, ;'it��of Cco�io <br /> - St. Paul, St. Cloud, Rochester, MN • Milwaul<ee, WI • Chicago, IL <br /> � AfFirmative Action/Equal Opportunity Empfoyer and Employee Owned <br />