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2335 West Higl�w�y 36 • 5t. Paul, MN 55113 r� ` � <br /> - Bonestroo ,��. <br /> Rosene OfFice; 651-636-4G00 ° F�x: GSl-G3G-131i <br /> Anderlilc& www.bonestroo.com <br /> � Associates <br /> Engineers&Architects �y��'���:��;�',h <br /> sEr � � zooy <br /> Seplember 6, 2005 ��-�-Y � <br /> �C= d-�f:Q1VCr <br /> Mr. Nlicllael Gaffi�oii <br /> Planning DirecLor <br /> City of Orono <br /> Post Office Box d6 <br /> Crysl:a.1 Bay, Minuesota 55323 <br /> Re: 3500 Watertown Road Subc�ivision <br /> F;�v,:�,ro. 000139-05000-0 <br /> Plat No. 05-3152 � <br /> Dear Milce, <br /> We have reviewed the plans dated 8-17-OS for the proposed 6-lot suUdivision locatecl at 3500 <br /> Walertowii Road. The �roposed 'ullprovemeilts include grad'uig, roadway construc�ioii aiid sloriil <br /> sewer improveiiients to serve the site. We have the followuig conunents with regards to enguleeriug <br /> matters: . , <br /> � The proposed gradulg plan shows areas o2i Lots 2, 3, and 4, Block 2 where slopes are as <br /> steep as 1:1. The grading plau should Ue revised so that proposed slopes do not exceed 3:1. <br /> • Tl�e grading plans show proposed ret�.uiuig walls up to 10-feet in height witlliii the riglit-of <br /> way and on 3 of llie 61ots. We reconuliend that ihe plans Ue revised so tlle walls are showii <br /> outside of the right-of-way. All wa11s that exceed 4-feet ui height require a separate <br /> enguieered desigii and detail subuufital for review and approval. <br /> o The plaus should be revised lo minimize wetlatid impacls; �IllS 171c1y T�C1llLT0 aCC1LlIllllg <br /> additional property to tlie west to revise tile road aligtuiZent.At a llZinimuul,the plans should <br /> identify tlie location of lhe i�.ecessary wetland impact mitigation. <br /> A rinal gcading plaus shou7d uzcorporate soLile type of Uest mauagemerlC practice to i:reat the <br /> s�orin water lhat is not routed to il�.e proposecl poi�d. � <br /> 0 Sio��ni sewer desigt7 (��lan aud p�'ofile views) and calculations sllould �e subizliti:ed for <br /> review and approval. <br /> o The pla.ns should provide draiilage and utility easemenis over tl�e pi�o��osed storllz sewer, <br /> pond S11C1 �X15L'lilg 1�CL1111C1. Ill addition, the pllns should idenlify an a.ccess from tl�.e <br /> roadwa.y to the pond for maulleuaT�ce purposes along wilh the necessary access easement. <br /> � The plans indica.te grading will Uc necessa►-y onlo the adja.ceiit property,to the west to <br /> constr�tct khe road;this will require tem.porary.construction easei.l�eilts fi�om lhe nciglibori�.ig <br /> properly owner. <br /> . � TIl� j�l'Oj�05�C� 111I:C1S�CL1011 0�IYI7CICL1111011 ROaCI. a11C1 W�lLC.]'L'OWil RO�.CI 111c1y 17CC5C11I: Sl.gllt <br /> disiance issues. A sight distance aualysis of this proposed intcrseclioii should Ue subnliLted <br /> for revicw. <br /> � TIl� C�1'1111�IbC r�11C� ]�O11CIlllg C11CL11c1.t1011 S11�1111I;�CCI 1TC U�lllb reviewed by our Waler �.tld <br /> Nc'1111Tc`ll RCSOLli'CC5 Gl'011p; C0171.111G11LS W].II�e f01'Wc'1TC10Cl LO y0U LL1IC�CT 5�}�1C`ciLO COVCl'. <br /> SC. Paul, Sl. Cloud, RochesLer, MN ° Milwaul<ee, WI ^ Chicago, IL <br /> � „�.�___.r.... �.,.,.,,ic.,�„i n�r,.,rnmirv Fmnlover and Emnlovee OWI1C� <br />