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y C.ones[roo,Rosene,Anderlik.�nd A;so�i�ites,lnc.is an Affirmritive Ac[ion,/Equa!Opportunity 6nployrr
<br /> . � Bonestroo Pnncipals Otto G Bonestroo,f'E � Joseph C Anderlik,fE •Marvin L Sorvala,RE•
<br /> Glenn R Cook,P.E.• Robert G.Schunicht,P.E.• Jerry A.Bourdon,PE.•
<br /> RoseneRobert W Rosene PE,Richard E Tumer,f'E and Susan M Eberlin,CPA,Senior Consul[ants
<br /> � Associafe Principals:Howard A.Sanford.P.E.• Keith A.Gordon.P.E• Robert R.Pfefferle,P.E.•
<br /> Anderlile & Richard W Foster PE • David Q Loskota,f'E • Robert C Ruzzek,A I A • Mark A Hanson,f'E •
<br /> Michael T.Rautmann,P.E• Ted KField,RE.� Kenneth f.Anderson,f'E• Mark R.Rolfs,PE•
<br /> Assoeiates Sidney P Williamson,PE LS • Robert F Kotsmi[h• Agnes M Ring•Allan Rick Schmidt,FE.
<br /> Offires:S[.Paul,Rochester,Willmar and St Cloud,MN� Milwaukee,WI ,
<br /> Engineers & Architects Webs;�e WwWho�,�s«ao�om • � '
<br /> November 11, 1999
<br /> �`,,`��
<br /> Mr. Paul Weinberger „,�.��J
<br /> Zoning Administrator/Planner ��'��� ���
<br /> City of Orono
<br /> Post Office Box 66
<br /> Crystal Bay, MN 55323
<br /> Re: Wayzata Country Cl�.�b Pond ExDansion
<br /> File No. 139-2398
<br /> Dear Paul:
<br /> We have reviewed the grading plan for the proposed expansion of two existing ponds on the
<br /> Wayzata Country Club property. The site is located north of T.H. 12 and south of the Luce Line trail
<br /> in the south half of Section 36. The ponds are located along the#6 and #12 fairways. We have the
<br /> following comments in regards to engineering matters.
<br /> • The plans do not show 10:1 aquatic bench at the pond normal water level as recommended in
<br /> our 2/4/99 letter. The purpose of the aquatic bench is to provide a margin of safety should a
<br /> child wander into the pond. The City has permitted the construction of ponds without the aquatic
<br /> bench on other golf courses in the City (Spring Hill). It appears that the proposed design is
<br /> acceptable given it is a private course and the ponds are at least 300-feet from any residential
<br /> neighborhood.
<br /> • We question whether the 4-inch outlet pipes shown for both ponds are adequate for a 50 or 100-
<br /> year storm event. We cannot verify the correct outlet pipe size without drainage and ponding
<br /> calculations. This may not be an issue as any flooding of the ponds and corresponding damage
<br /> ,. ,_.. �:.. , . ,-,_ ,
<br /> iN�ii, u�C�iliiiiZu �v t'C�c �.vultify uu piu�C►'iy.
<br /> • The plans show a balance of cut and fill on site, we would expect that no excess material be
<br /> hauled off site.
<br /> • All temporary erosion control must be in place prior to the start of construction.
<br /> Please contact me at (651) 604-4863 if you have any questions regarding this matter.
<br /> Yours very truly,
<br /> BONESTROO, ROSENE, ANDERLIK �8z ASSOCIA,TES, INC.
<br /> -^ / - _._..__ . .
<br /> /- / , � �
<br /> Tom Kellogg
<br /> Cc: Greg Gappa, City of Orono��____�___�
<br /> 2335 West Highway 3G ■ St. f'aul, MN 55113 ■ G51-G3G-4G00 ■ Fax: G51-G3G-1311
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