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•ou . <br />e-<- - ■ i. <br />if I Bonestroo <br />Rosene <br />■ Anderlik & <br />^ I Associates <br />Engineers & Architects <br />February 13, 1998 <br />Mr. Michael P. Gaffron, <br />Senior Planning Coordinator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, Minnesota 55323 <br />Re: Orono Development, L.L.C. <br />File No. 139-2327 <br />Dear Mike, <br />Bonestroo. Rosene. Anderfik ^nd Assocuites. Inc is an Affirmative Action Equal Opportunity Employer <br />Principals Otto G Bonestroo. P£ • Joseph C Anderlik. PE • hAarvin L SorvdM PE • <br />Richard E Turner. PE. • Glenn R Cook. PE • Robert G Schunicht, PE • Jerry A Bourdon. PE • <br />Robert W Rosene. PE .ind Susan M Eberhn, C PA , Senior Consultants <br />Associate Principals Howard A Sanford PE • Keith A Gordon. PE • Robert R Pfefferle. PE • <br />Richard W Foster. PE • David O Loskota, PE • Robert C Russek. A l 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 . L S • Robert F Kotsmith <br />Offices: St. Paul. Rochester. Wilimar and St. Cloud. MN • Milwaukee. Wl <br />We have reviewed the revised grading and utility plans and the storm sewer and pond calculations <br />for the proposed commercial development located on the east side of Shadywood Road (CSAH 19), <br />north of Navarre Lane and Shoreline Drive (CSAH 15) in Navarre. The development includes a full <br />service bank with drive-up auto tellers and a single story retail office complex. The following <br />engineering issues need to be addressed as part of the plan review process. <br />• The ponding and drainage calculations submitted appear to be acceptable for the proposed site. <br />The drainage area map provided shows 0.16 acres of the Orono Retail site draining easterly to <br />the Culver’s Restaurant site. No storm sewer calculations were submitted for these flows <br />however it appears that there is adequate capacity in the Culver system to accommodate this <br />ninoff. <br />• Retaining wall details and design should be submitted for our review. <br />• Pipe grade and length for the 12 inch RCP located downstream from MH-2 should be revised <br />on the plan sheets to reflect those used in the storm sewer calculations (30 feet @ 5.0%). <br />Please contact me at 604-4863 if you have any questions regarding this matter. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. <br />Tom Kellogg'^ <br />cc: Greg Gappa, City of Orono <br />2335 West Highway 36 ■ St. Paul, MN 55113 ■ 612-636-4600 ■ Fax: 612-636-1311