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- 2335 West Highway 3G • St. Paul, MN 55113 � <br /> Bonestroo <br /> Rosene Office: G51-G36-4600 ■ Fax:GS1-G36-13i1 <br /> ' Anderliic& www.bonestroo.com <br /> Associates <br /> Engineers&Architects � <br /> July 12, 2005 �/� ������'� <br /> Mike Gaffi•on � � .j� <br /> Planning Director �Tj�� Z00,5" <br /> Ciry of Orono F,�R <br /> Post Office Box 66 �/�o <br /> Crystal Bay, MN 55323 <br /> Re: Glendale Cove(177 Glendale Drive/190 Willow Drive North) <br /> rile No. 000139-05000-0 <br /> Plat No. OS-3131 <br /> Dear Mike: <br /> We have reviewed the preluninary plat and preliminaiy grading and drainage plans dated 6-22-OS for the <br /> proposed 11-lot residential subdivision. It appears that tlie subdivision will consist of 9 new homes, one <br /> existing hoine and a lot created for the existing church. The site is located 'ui the southeast quadrant of the <br /> intersection of Glendale Drive and Willow Drive North. We have the following coriunents in regards to <br /> engineering matters. <br /> 1.Access/Streets: A geotechnical report, R-value recommendation and pavement design should be <br /> subinitted for review and approval. Final plans should include all applicable standard details for street <br /> construction.All driveway grades shall be 10°/o or less. <br /> 2. Grading and Erosion Control: Final plans should include a Storui Water Pollution Prevention Plan in <br /> accordance with Minnesota Pollution Control Association rules. The grading plan should be consistent and <br /> show swales centered on common lot lines between homes as shown between Lots 4 and 5. The grading <br /> plans should provide 2-feet of freeboard between the high water levels of any pond or wetland and the <br /> lowest exposed opening to auy home adjacent to the pond or wetland. It appears some additional grading <br /> may be necessary on the north side of Lot 2 to convey stotn�water flows around the proposed home site. <br /> 3. Sanitary Sev��er/Water Main: Final plans should include a detailed sanitary sewer design. Plan and <br /> profile views should be provided for all proposed sanitaty sewer uliprovements. The ability to obtain <br /> municipal.water from Long Lake should be explored. If municipal water is available final plans should <br /> include a detailed water main design including plan and proEile views over all improvements. , <br /> 4. Storm Sewer/Drainage: Drainage area maps and drainage calculations should be subinitted for review <br /> and approval. Plans should be subinitted to Minnehaha Creek Watershed Dish•ict for review and approval. <br /> Final plans should include storm sewer calculations and detailed stonn sewer desigu including plan and <br /> profile views of all proposed storm sewer improvements. The final stot7n water pond design shall meet <br /> NLJRP standards. <br /> 5. Plat: The final plat should�rovide drainage and utility easements 10-feet wide along all exterior lot <br /> lines and 5-feet wide along all interior lot lines. Drainage easements should be provided over all ponding <br /> arels, wetlands and drainage ways. <br /> G. I'inancial Guarantee: When the final�lans are coin}�leted we will prepare a cost estimate for the site <br /> improvements. A financial guarantee of 150°/a of fhis estimatc should Ue provided to lhe city in the form of <br /> a letter of credit prior to any work on site. <br /> St. Paul, St. Cloud, Rochester, MN ■ Milwaul<ee, WI • Chicago, IL <br /> Afflrmative Actfon/Equal Opportunity Employer and Employee Owned <br />