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Bcnestroo,Rosene•Anderlik and Associates,Inc.is an Affirmative Action/Equal Opportunity Employe<�l <br /> BonestrooPr nopals:Otto G.Bonestroo.PE.•Joseph C.Anderlik.PE.•Marvin L.Sorvala,PE.- <br /> R,cnard E.Turner.PE.•Glenn R.Cook,PE.-Robert G.Schunicht.P.E.- JerryA.Bourdon.PE. <br /> RoseneRobert W.Rosene.PE.and Susan M.Eberlm.C.P.A..Senior Consultants 1lrr <br /> Associate Principals:Howard A.Sanford.PE.•Keith A.Gordon,PE.•Robert R.Pfefferle.P.E. <br /> Anderlik & • (v/ <br /> R:cnard W.Faster,RE.•David O.Loskota,P.E.•Robert C.Russek.A.I.A.•Mark A.Hanson.P.E.• �— <br /> Micnael T Rautr^ann,PE.•Ted K.Field.P.E.•Kenneth P Anderson,PE.•Mark R.Rolfs.PE. <br /> Associates Sidney P Williamson.P.E..L.S.•Robert F Kotsmith•Agnes M.Ring•Michael P.Rau.PE. <br /> Adan Rick Schmid.PE. <br /> Engineers & Architects Of.`ces:St.Paul Rochester.Willmar and St.Cloud.MN•Milwaukee.WI <br /> March 8, 1999 veosite:wwwbonestroo.com <br /> Elizabeth VanZomeren 11 <br /> City Planner/Zoning Administrator P r>cl �tppra�t , �,ZO Ar—City of Orono J <br /> Post Office Box 66 Q� <br /> Crystal Bay,MN 55323 <br /> Re: Renckens Subdivision <br /> File No. 139-2466 <br /> Dear Liz: <br /> We have reviewed the preliminary plat for the proposed two-lot Renckens subdivision. The site is located east of Crystal <br /> Creek Road, west of Wear Lane and north of Watertown Road in the southwest quarter of Section 33. We have the <br /> following comments in regards to engineering matters. <br /> 1. Access: Access to Lot 1 is off of Watertown Road along a 30-foot wide corridor. The driveway to serve Lot 1 <br /> would be approximately 700 feet long. The City should review the proposed access to Lot 1 and determine whether <br /> the 30-foot corridor and driveway length is appropriate. The southerly 33 feet of Lot 2 should be dedicated as <br /> Watertown Road right-of-way. An Outlot should be platted across the northerly 50-feet of Lot 1 to provide for a <br /> future extension of Crystal Creek Road and allow access to Outlot B and Lot 7, Block lin the Crystal Creek <br /> subdivision. <br /> 2. Grading: The location of the proposed westerly septic site on Lot 2 may be too close to the proposed driveway to <br /> serve Lot 1 and to the existing wetland in Crystal Creek. A grading and erosion control plan for the entire site <br /> should be submitted for review. Erosion control measures should be in place prior to any grading. Additional <br /> erosion control will be needed during construction of the homes and septic systems. <br /> 3. Drainage: The site lies within the Lake Classen drainage district as shown in the draft version of the City's Surface <br /> Water Management Plan(SWMP). The southerly wetland on the property is identified as LC-P 15 and classified <br /> as a moderately susceptible wetland in the City's SWMP. We recommend constructing a water quality pond north <br /> of this wetland to treat runoff from the site and protect the wetland. <br /> A drainage area map,drainage and <br /> ponding calculations should be submitted for review. Plans should be submitted to the Minnehaha Creek Watershed <br /> District for their review. <br /> 4. Easements: Drainage and utility easements should be provided 5 feet wide along all interior lot lines and 10 feet <br /> wide along the roadway right-of-ways. Drainage easements should be provided across ponding areas,wetlands and <br /> drainage ways. <br /> 5. Financial Guarantee:When the plans have been completed we will prepare an estimate of the total cost for the site <br /> improvements to determine the amount of the financial guarantee required. <br /> Please contact me at 651-604-4863 if you have any questions regarding this matter. <br /> Yours very truly, <br /> BONESTROO,ROSENE,ANDERLIK&ASSOCIATES,INC. <br /> Tom Kellogg <br /> Cc: Greg Gappa,City of Orono <br /> 2335 West Highway 36 ■ St. Paul, MN 55113 ■ 651-636-4600 ■ Fax: 651-636-1311 <br />