04-12-1999 Council Packet - Laserfiche WebLink

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Bonestroo Rosene Anderlik & Associates Sc'-estroo, AncerUk ana Assoeistes. Inc. is an Affirmative Action, equ3l Oppcru^ity employer P^ rcioatt Oc:c G. 3onesiroo. P£. • Joseph C. Anderiik. PE • Marvin L. Sorvaia. PE. • ffic-ard E Turre*. PE • GJenn R Cook. PE • Robert G Schumcnt. PE. • Jerry A. Bourdon. P6. • Robert W Rosere. p£ and Susan M. Eberim. C PA . Senior Consultants ^:scciJite Prirc 0^15 Howard A Sanford. PE. • Keith A. Gordon. PE. • Robert R. PE. • R :-'ard 'Ji/ fa:tr ?£ • David O Loskota. PE. • Robert C. Russek. A.I A • Mark A. Hanson. PE. • Vicnaei T. Rau:“*ann. PE • Ted K field. PE. • Kenneth P. Anderson. PE. • Mark R. Rolfs. PE. • S-cre/ P Wiiiiar-son. PE . L S • Robert f Kotsmuh • Agnes M. Ring • Michael P Rau. PE • A.;ar Rick Schrr.sr. PE Engineers & Architects March 8, 1999 :*s St Pju Rochester. 'JViiimar and St Cloud. MN • Milviraukee. W! JftSiire wvw.voorestroo com Elizabc-iii Vc: Zomeren City rianner/'. toning Administrator City of Orono Post Office Box 66 Crystal Bay. MN 55323 fi-------- Q^re»)t , AC. “ Re:Renckens Subdivision File No. 139-2466 Dear Liz: We have reviewed the preliminary 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 comments 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 approximately 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 I 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. Grading: The location of the proposed westerly septic 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 a.-'d 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. 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 recommend constructing a water quality pond roiut of this wetland to treat runoff from the site and protect th' wetland. -The City^s SWMP also idgntificra pf tosed 18'^ slut 111 sewet Luit»eying flews from the nnrihrast tn this pnnrUwctland area. We recommend that a (Mirtagc eosement be acquired at this time for future eowotniction of this storm sewer-. A drainage area map. drainage and ponding calculations should be submitted for review. Plans should be submitted to the Minnehaha Creek Vatershed District 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, wedands 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 regarding this matter. 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