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^ i Bonestroo <br />Rosene <br />Anderlik & <br />|\ I Associates <br />Engineers & Architects <br />January 30, 1998 <br />Mr. Michael P. Gaffron <br />Senior Planning Coordinator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, MN 55323 <br />Re: Lakeview Golf Course Land Alteration <br />File No. 139-2338 <br />Bonestroo. Rosene. Anderlik and AssodMes. Inc is an Affirmative Action, Equal Opportunity Employer <br />Principals Otto G Bonestroo. PE • Joseph C Anderlik. PE. • Marvin L. Sorvala. PE • <br />Richard E Turner. PE • Glenn R Cook. PE • Robert G Schunicht. PE • Jerry A Bourdon. PE • <br />Robert W Rosene. PE and Susan M Eberhn. C PA Senior Consultants <br />Associate Principals^ Howard A. Sanford. PE • Keith A Gordon. PE • Robert R Pfefferie. PE • <br />Richard W Foster. P.E • David O. Loskota. PE • Robert C Russek. A.I 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 Koismith <br />Offices St Paul. Rochester. Willmar and St Cloud. MN • Milwaukee. WI <br />Dear Mike: <br />We have reviewed the grading plan for the proposed two pond addition to the Lakeview Golf <br />Course. The site is located east of C.R, 19, west of North Ann Drive and north of West Branch <br />Road in the south half of Section 6. We have the following comments in regards to engineering <br />matters. <br />• We recommend that the ponds be graded to include a 10:1 aquatic bench at the normal water <br />level. The bench should be at least 10 feet in width to provide a vegetated safety buffer. <br />• Emergency overflow elevations should be verified and their locations shown on the plan set. <br />Rip rap or some other type of erosion control measures should be provided at the overflows. <br />• Inverts for the existing 12 inch pipe under North Arm Drive should be included on the plans. <br />• It is assumed that all excavated material will be used as fill on site. Spoil site locations and haul <br />routes should be provided if any excavated material is to be hauled off site. <br />• All temporary erosion control must be in place prior to the start of construction. <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 />/o^ <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