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PORT NO. PI^35< <br />PAGE 6 <br />503 00020 <br />^ J Bonestroo <br />Rosene <br />Anderlik & <br />\\\\ Associates <br />Engineers & Architects <br />October 14, 1998 <br />Elizabeth VanZomeren <br />City Planner/Zoning Administrator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, MN 55323 <br />Re: Paul Phillips Subdivision <br />File No. 139-2430 <br />Bonestroo Rosene. Anderlik ond Associates Inc is tin AffirniMive Action Equt^l Opportunity Errp c.er <br />Princip€tls Otto G. Bonestroo. PE • Joseph C AnJerlik. PE • Marvin L Sorvala. PE • <br />Richard F Turner. PE • Glenn R Cook. PE • RoPert G Schunicht. PE. • Jerry A Bourdon. PE • <br />Robert W Rosene. PE and Susan M Eberfm. C PA . Senior Consultants <br />Assocuite Principtils Howard A Sanford. PE • Keith A Cordon. PE • Robert R Pfefferle. PE. • <br />Richard W Foster. PE • Oavid O Loskota. PE • Robert C Russek. A.t A. • Mark A Hanson. PE • <br />Michael T Rautmann. PE • Ted K Field, PE • Kenneth P Anderson. PE • Mark R Rolfs, PE. • <br />Sidney P Williamson. PE. LS • Robert F Kotsmith • Agnes M Ring • Michael P Rau. PE • <br />Allan Rick Schmidt. PE <br />Offices St Paul Rochester. Willmar and St Cloud. MN • Milwaukee. Wl <br />Website WWW bonestroo com <br />c <br />V '«•v^ <br />IE <br />E lECOROS <br />rHE REST <br />Dear Liz: <br />We have reviewed the preliminary plat for the proposed two lot Phillips subdivision. The site is <br />located north of County Road 6 between North Brown Road and Willow Drive in the southwest <br />quarter of Section 27. We have the following comments in regards to engineering matters. <br />1. Access: An existing driveway along the west side of the property currently provides access to <br />this site and to the property located north and west of the Phillips property. Access to the <br />proposed Lot 2 would either be from the existing driveway or directly off of County Road 6. The <br />private driveway should be reconstructed to a minimum paved width of 28 feet to meet current <br />City standards for a private street serving 3 to 10 units if access to Lot 2 is from the shared <br />driveway. The private street design should include a cul-de-sac to provide room for emergency <br />vehicle turning movements. An Outlot with adequate right-of-way should be platted for the <br />proposed private driveway. Hennepin County should review and comment on the proposed <br />access. Plans and specifications for any street improvements should be provided for review. <br />2. Grading: A gradi.ng and erosion control plan for the entire site should be submitted for review. <br />Erosion control measures should be in place prior to any grading. Additional erosion control <br />will be needed during construction of the house and septic system. <br />3. Dram .e: The draft version of the City’s’ Comprehensive Storm Water Management Plan <br />(SWMP) showb that the site drains westerly to an existing vetlr .d identified as LL-P4. <br />Phosphorous loadings leaving the site should be limited to a maximum of 0.28 pounds/acre/year. <br />A majority of the site currently drains to an exist.ng low area west of the septic locations on Lot <br />2. This depression may provide an ideal location for a water quality pond ♦hat could provide rate <br />control and nutrient removal of siorm water leaving the site. Plans should be submitted to the <br />.Minnehaha Creek Watershed District for iheir review. A drainage area map and ponding <br />calculations should be provided witii tfie fmai plan <br />4. Easements: Drainage and utility easements should be provided 5 feet wide along all interior lot <br />lines and 10 feet w ide along the roadway rignl-of -ways. Drainage easements should be provided <br />across al! wetland, drainage way and pond areas. <br />2335 West Highway 36 • St. Paul, MN 55113 • 612-636-4600 • Fax; 612-636 1311