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. , �� � �� <br /> �,��,�. <br /> � <br /> �Bonestroo <br /> ���� �Rosene <br /> Anderlik 6 <br /> �Associates <br /> Ennlnccrt6 Archl[ecl� <br /> Projecf Name: 3500 Watertown Road Client: City of Orono <br /> To: Tom Kellogg File No: 139-05-000 <br /> From: Lance Hoff, Dan Murphy Date: 9-8-05 <br /> Re: Drainage Review <br /> Developer: Bohland Development, Inc. and Jarnes MacKinnon <br /> Engineer: Gronberg & Associates, inc., Long Lake <br /> Submittal: Drainage Calculations, Plans <br /> Plan Sheets: Grading and Drainage <br /> Date of Pians: 8-17-05 <br /> Date Received: 9-6-05 <br /> Comments <br /> Based on our review of the 3500 Watertown Road development, we offer the following comments. <br /> 1. Rational method storm sewer calculations should be submitted for review and approvai. <br /> 2. A pond outlet detail should be included on the plans and submitted for review and approval. <br /> The submitted model includes an outlet, though the design is unclear. An outlet should be <br /> ' properly designed and ciearly shown on the plans. <br /> 3. The City's standard skimming pond outlet should be used (detail attached). <br /> 4. Offsite drainage from the southwest and southeast should be accounted for in the drainage <br /> calculations. <br /> 5, The pond emergency overflow (EOF) elevation should be labeled on the plans, The EOF <br /> elevation should be located at or above the 100-yr HWL. <br /> G. The top of the pond berm should be labeled on the pians. The top of berm elevation should be <br /> no less that 1' above the �00-yr HWL or the EOF elevation, whichever is greater. <br /> 7. The contour elevation labeled "998" east of the existing house and west of the proposed <br /> McKinnon Drive should be labeled "1002", <br /> eonestroo, Rosene, Anderlik and Associates, lnc. www.bonesfroo.com <br /> ❑51,Paul 011lca: G IAllwaukee ONlca: 0 Raehester 011lce: 0'Nlllmar 011lce; 0 51.Cloud Ofllce; ' 0 Uberlyvllle 01(Ice; <br /> 2J75�Nasl Hlghvray 35 12075 M.Corperalc Parkwa/.Sle 27J I 12 7�5truel NE 205 Slh SUeai SMf J721 2�"'Stroal S I860'Nnsl Winchesler Rd,Slc 106 <br /> 5�Paul,NF!551 t9 �+rquon,WI SJ092 � Rochocler,MN 5590G 'Nllmar,MPI 5fi201 51,Cloud,PAN SbJ01 Gayslaku,ll 600�0 <br /> Phone:651�iJG-0600 Phone:262-04J•9032 Phone:5D7-282•210'J Pliana:320•21M1�5557 Phone:720•251•455J Phone:8A7-SAFf�G774 � <br /> .. _- .-" ' "-'.. �.,,. �_...��,o�„�oo ❑,..�vn.�u..onva :ax•]7(1.751-�i�57 Faz:8d7-SA��6975 <br />