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Bonestroo <br />rr-TTi Rosene <br />Anderlik & <br />Associates <br />Engineers & Architects <br />Octc>?’’ 14, 1998 <br />Bcncstroo ftosene. AnJemk Associt*tes me »s Aff>fmjtt,vc Acnon Opportunity Bmptoyer <br />Prmcip^lf Olio 0 Bonejtroo. PE • jOSfph C Ar»E • V,.v. nL P£ • <br />R ch:-rd E PE • .7 Cze^ PE • Pec-rr G 5c*'uP'cnt P£ • Jerry A Bourdon. P£ • <br />Rooert Jt ‘ Roiene. PE and Susan v EDeri.n CPA Sen>cr Consuftar'tj <br />Associate Principals Meward A Sanford PE • Ke rn A Ci-jon p£ • Rcden R Pfsfferie PE • <br />Rjcnard w Fester PE • David O Lcs^ota P£ • 7ere^: C Russet. - f A • Mar*< A Hanson PE • <br />M'cnaet T Rautmann. P£ • Ted < F efd PE • Ken-et- ® A-ijerscn p£ • Varit R Rglf$ PE • <br />S'Cney P Wiiiiarrson P£. LS • RdCC't F Kon.-nitn • Ac“es V Ring • .V.cnaei P Rau. ?£ • <br />A laii RiCH Scnrrid:. P£. <br />St Paul Rochester. Wii»ma' anj St C'cuct V\ • ViS.vauVee <br />J. ePi te vv.% .voerescoc cons <br />c <br />n NO. PI435401 <br />PAGE 6 <br />00020 <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 />Dear Liz: <br />We have reviewed the preliminary plat for the proposed two loi 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 foiiowing 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 iuining 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 grading 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. Drainage: The draft version of the City ’s’ Comprehensive Storm Water Management Plan <br />(SWMP) shows that the site drains w'esterly to an existing wetland 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 existing low area west of the septic locations on Lot <br />2. This depression may provide an ideal location for a water quality pond that could provide rate <br />control and nutrient removal of storm water leaving the site °lans should be submitted to the <br />Minnehaha Creek Watershed District for their review. A drainage area map and ponding <br />calculations should be provided with the final plan sef. <br />*. Easements: Drainage and utility easements should be provided 5 feet wide along all interior lot <br />lines and 10 feet wide along the roadway rignt-of -ways. Drainage easements should be provided <br />across all wetland, drainage way and pond areas. <br />2335 West Highway 36 • St. Paul, MN 55113 ■ 612-636*4600 • Fax: 612-636-1311