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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 />Bonestroo. Rosene. Andertik and Associates, inc is ^n Affirmative Action/Equ^U Opportunity Employer <br />Principals Olio G Bonestroo. PE • Joseph C Anderlik. PE • Marvin L Sorvala. PE • <br />Richard E. Turner. PE • Glenn R Cook. P^ • Robert G Schunicnt. PE • Jerry A Bourdon. PE • ^ <br />Robert W Rosene. PE and Susan M Ebenin. C PA . Senior Consultants <br />Associate Principals Howard A Sanford. PC • Keith A Gordon. PE • Robert R Pfefferle. PE • <br />Richard W. Foster, PE • 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 Kotsmith <br />Offices St Paul. Rochester. Willmar and St Cloud. MN • Milwaukee. Wi <br />2l9 y. <br />Re; Lakeview Golf Course Land Alteration <br />File No. 139-2338 <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 Arm 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 offsite. <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 />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