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; <br />Bonestroo <br />Rosene <br />Anderllk & <br />Associates <br />Engineers & Architects <br />Ono G Sonewca P£ <br />w Rosene. FB • <br />Joseph C AntJehik. PB <br />Wi/vm L SorvjiJ. Pf <br />£ Turner P£ <br />Glenn R Cook. PE <br />Thorrvw E Noyev PE <br />RoOert G Schuncht PE <br />Suun M Ebenei. C PA <br />*Ser^ Consuejnc <br />July 6, 1994 <br />A Sjn^onJ. PB <br />Keen A Gordon. PB <br />Rtjoen R P^rte. PB <br />fficMra W Poster. PE <br />OmI O Loskou. PE <br />RoPen C Pussek. a ia <br />jerry A Bomoon. PE <br />Mjrk A Hjnson PE <br />MKMei T PMTvmn. p£ <br />TW K. fiekJ. PE <br />Thorrvis P AneJenon. AiA <br />Oorvud C BurgardL PE <br />Thomas A Syffca PE <br />freoenc i SienPorg. PE <br />fsmaei kiartmez. PE <br />M<haei P Pau. PE <br />Agnes M Ang, AlCP L Ph*p Gravei P£.A <br />Thomas W Prtenon. PB <br />M<haei C Lynch PE <br />James R. Maiand PB <br />Jerry O Rpozsch. PE <br />iCaien i Wrmea PE <br />Gary O Kmtoftcz. PE <br />P food Foster. PE <br />Keen R vapa PE. <br />Scoft J Aganek. PB Douglas J ftersoc PE i'W <br />JO A « <br />Kenneth P Andenon. pf Shawn O Gustafson. PB A- <br />Mark R Roth. PB CeoKo Okvier. PB <br />Mark A Se<i PE Paul G Heuer PE * <br />Gary W Monen. PB John P Cooler. PB <br />Paul J Gannon. AIA Charles A Enckson <br />Oarwt J Edgenon. PB LeoM Paweisky <br />A Ack SchmvX. PE Harlan M Oison <br />Phiip i Catvi«f. PE <br />Mark 0 NVWbs. PE <br />James P Engetsaox <br />Miles ft Jerisea P£ <br />Ms. Jeanne A. Mabusth <br />Building and Zoning Administrator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, Minnesota 55323 <br />Kahler Tennis Court <br />File No. 139-Gen <br />Dear Jeanne, <br />We have reviewed the drainage plan prepared by Tennis West for the proposed tennis court <br />on Herbert Kahler’s property. The drainage is directed to the northeast which is <br />appropriate. However, the proposed court elevations are incorrect and should be changed <br />as follows: <br />Southwest Comer <br />Southeast Corner <br />Northwest Corner <br />Northeast Corner <br />953.5 <br />953.16 <br />952.5 <br />952.16 <br />These elevations fit well into the existing topography and will not require significant grading <br />or retaining walls. The only retaining wall needed is at the northeast comer and it should <br />be only 24 to 28 inches in height. To direct the drainage to the northeast comer, the edges <br />of the court should have some type of curb. A drop in the curb should be placed at the <br />northeast comer. The drainage will run over the wall which should not be a problem at the <br />proposed height. <br />We recommend that the modular block be a type used for retaining walls, not for decorative <br />landscaping. A layer of clean sand or gravel should be placed behind the wall to allow <br />seepage between the blocks. <br />Please contact me at this office if you have any questions regarding this matter. <br />Yours veiy truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. <br />Shawn D. Gustafson, P.E. <br />2335 West Highway 36 • St. Paul, MN 55113 • 612-636-4600 <br />\ i' <br />■5!