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�eonestroo <br /> ���O " Rosene <br /> �Anderllk& <br /> �Associates <br /> , . Erglnecn 6 Archltectf <br /> Project Name: Amber W oods Office Center , Clienf: City of Orono <br /> To: Tom Kellogg File No:.139-07-000 <br /> From: Lance Hoff � Date: 2-14-07 <br /> Re: Drainage Review . <br /> Developer: Interspace-West, Inc.,Wayzata , <br /> Engineer: Loucks Associates, Maple Grove <br /> Submittal: Storm Sewer Design Calculations, Plans <br /> , . <br /> Plan Sheets: 34"x 22°— Full Set <br /> Date of Plans: 12-22-04, Latest Revision on 12-14-06 <br /> Date Received: 2-9-07 <br /> Summarv of Recommendations - <br /> As requested, the Amber Woods development has been reviewed for compliance with the requirements <br /> and standards of the City of Orono. Based on our review, we offer the following comments: <br /> 1. The minimum cover required over storm sewer in paved areas is 2'. The storm sewer draining from . <br /> the western parking lot catchbasin is shown to have 1' of cover. This appears as though it can be <br /> easily corrected by adjusting the proposed pipe grades. All other pipe running under the proposed <br /> parking lot should be adjusted to provide a minimum of 2' of cover as necessary. <br /> 2. The storm sewer capacity of the downstream existing system, located on the site to the east, was � <br /> checked to ensure adequate capacity exists to convey runoff from the Amber Woods site to the <br /> MnDOT pond. Modeling shows that the downstream system does have adequate capacity. <br /> Bonestroo,Rosene,Anderlik and Associates,lnc. ' www.bonestroo.com � <br /> ❑St.Paul Ofilca: O MlAvaukee 0fflce: O Roehasbr Offlca: O WAknar OHke: O Sl.Ckud Ofllu: p L16ertyvllle 0fflce: <br /> 2335 West Hk,�nrdy 36 12075 N.Caporale Park�say,Sla 200 112 7n Slreel NE 20558�Streal SW 3721?3M Steel S 1 B60 Wesl Winchasler Rd,Ste 106 <br /> SL Paul,MN55119 Mequm,WI53�92 Rochas�r,MN 55906 Wrinar,MN 5620f Sl Cbud,MN 56301 Grayslaka,A.fi0030 <br /> ' Phone:651�i36-0600 Phona:262603-9032 Phone:507-282-2100 Phana:324214-9557 Phane:32a251-0SS1 Phane:847-548�6774 <br /> Faz:651�6361311 Fax:262-241-0901 Fax:5W882-3100 Fax:32a2149458 Faz:a20-251-6252 Faz:847-54&6979 <br />