05-24-1999 Council Packet - Laserfiche WebLink

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Bonestroo Rosene Anderlik & Associates Engineers & Architects March 8.1999 Elizabeth VanZomeren City Planner/Zoning Administrator City of Orono Post Office Box 66 Crystal Bay. MN 55323 Re: Renckens Subdivision File No. 139-2466 Sc^essroo. Rcze^f, Anefe^'ik jtna Anoaatet. tnc is an Affirmative Acrion, £quat Opportunity Etr^oye rctpals: Oc:c G 3onestroo. PE. • Joseph C. Anderlik. PE • Marvm L. Sorvaia. PE. • Richard E. Turne*. P£ • Glenn R Cook. PE. • Robert G Schunicht. PE. • Jerry A. Bourdon. PE. • Rszert W Rosene. pe and Susan M. EOerim. C PA. Senior Consultants Associate Fnr^c sait Howard A Sanford. PE • Keith A. Cordon. PE. • Robert R. Pfffferie. PE • R c'^ard 'Jf Fcstf ?£ . David O Loskota. PE • Robert C. Russek. A.i A • Mark A. Hanson. PE. • Vicnaei T. Rau:—ann. PE • Ted K Fieid. PE • Kenneth P Anderson. PE. • .Mark R. Rolfs. P£ • S‘C’*ey P Wiiiiar^san. p£. L.S • Robert P Koismith • Agnes M. Ring • Michael P Rao. PE • A.iar Rick Sch/r.ct. PE O^f ces St. Pau Rochester. Wiiimar and St Cloud MN • Milwaukee Wi Wsosite ww wssrestroo com AC — Dear Liz: We have reviewed the pretiminaiy plat for the proposed two-lot Renckens subdivision. The site is located east of Crystal Creek Road, west of Wear Lane and north of Watertown Road in the southwest quarter of Section 33. We have the following cotiunents in regards to engineering matters. 1. Access: Access to Lot 1 is off of Watertown Road along a 30-foot wide corridor. The driveway to serve Lot 1 would be approxirruitely 700 feet long. The City should review the proposed access to Lot 1 and determine whether the 30-foot corridor and driveway length is appropriate. The southerly 33 feet of Lot 2 should be dedicated as Watertown Road right-of-way. An Outlot should be platted across the northerly 50-feet of Lot 1 to provide for a future extension of Crystal Creek Road and allow access to Outlot B and Lot 7. Block lin the Crystal Creek subdivision. 2. Grading: The location of the proposed westerly sepdc site on Lot 2 may be too close to the proposed driveway to serve Lot 1 and to the existing wetland in Crystal Creek. A grading and erosion control plan for the entire site should be submitted for review. Erosion control measures should be in place prior to any grading. Additional erosion control will be needed during construction of the homes and septic systems. 3. Drainage: The site lies within the Lake Classen drainage district as shown in the draft version of the City's Surface Water Management Plan (SWMP). The southerly wetland on the property is identified as LC-P15 and classified as a moderately susceptible wetland in the City's SWMP. We recoiiunend constructing a water quality pond north of this wetland to treat runoff from the site and protect the wetland. The City's SWMP alse -identlfiua pioposed 16” stuiin st'wei tuii»cyiiig flows from Ihe northrast tn this pnnd/wrtland area. We fceemmend tha t a drainage eas ement be acquir ed at this time for future eonstruction of this itorm setvfi A drainage area map. drainage and ponding calculations should be submitted for review. Plans should be submitted to the Minnehaha Oeek Watershed Disuict for their review. 4. Easements: Drainage and utility easements should be provided 5 feet wide along all interior lot lines and 10 feet wide along the roadway right-of -ways. Drainage easements should be provided across ponding areas, wetlands and drainage ways. 5. Financial Guarantee: When the plans have been completed we will prepare an estimate of the total cost for the site improvements to determine the amount of the financial guarantee required. Please contact me at 651-604-4863 if you have any questions regurding this maner. Yours very truly. BONESTROO. ROSENE. ANDERLIK & ASSOCIATES. INC. Tom Kellogg Cc: Greg Gappa. City of Orono 2335 West Highway 36 • St. Paul, MN 55113 • 651-636-4600 - Fax; 651-636-1311