|
Bonestroo,Rosene,Anderlik and Associates,Inc.is an Affirmative Action/Equal Opportunity
<br /> Bonestroo Employer and Employee Owned
<br /> Principals:Otto G.Bonestroo,P.E.•Marvin L.Sorvala,PE.• Glenn R.Cook,RE.
<br /> v Rosene Robert G.Schunicht,P.E.• Jerry A.Bourdon,P.E.
<br /> Anderlik & Senior Consultants:Robert W.Rosene,P.E.•Joseph C.Anderlik,PE.•Richard E.Turner,P.E.
<br /> Susan M.Eberlin,C.P.A.
<br /> Associates Associate Principals:Howard A.Sanford,P.E.• Keith A.Gordon,P.E.• Robert R.Pfefferle,P.E.
<br /> Richard W.Foster,P.E.•David O.Loskota,P.E.•Robert C.Russek,A.I.A.•Mark A.Hanson,P.E.
<br /> Engineers&Architects Michael T.Rautmann,P.E.• Ted K.Field,P.E.• Kenneth P.Anderson,P.E.•Mark R.Rolfs,PE.
<br /> David A.Bonestroo,M.B.A.• Sidney P.Williamson,RE.,L.S.• Agnes M.Ring,M.B.A.•Allan Rick Schmidt,P.E.
<br /> April 19,2000 Offices:St.Paul,St.Cloud,Rochester and Willmar,MN•Milwaukee,WI
<br /> Website:www.bonestroo.com
<br /> Mr.Paul Weinberger
<br /> Zoning Administrator/Planner
<br /> City of Orono
<br /> Post Office Box 66
<br /> Crystal Bay,MN 55323
<br /> Re: Robert Suess Pond Grading Permit Request
<br /> BRA File No. 139-98-000
<br /> Dear Paul:
<br /> We have reviewed the proposed grading plan for pond revisions on the Robert Suess property. The site is
<br /> located on Lot 8, Block 1, Meadow Wood Pond. We have the following observations regarding engineering
<br /> matters.
<br /> • The calculations submitted by Mark Gronberg show that the pond was originally approved to provide
<br /> 9000 square feet of surface area at the normal water level(NWL)and 12,500 square feet of surface area at
<br /> an elevation 2-feet higher than the NWL. The survey and calculations provided by Gronberg shows that
<br /> the existing pond was not graded as approved,providing only 6550 square feet of surface area at the NWL
<br /> and 11,750 square feet of surface area at an elevation 2-feet higher than the NWL.
<br /> • The proposed grading plan provides 9000 square feet of surface area at the NWL and 14,500 square feet
<br /> of surface area at a point 2-feet above the NWL.
<br /> • The proposed pond grading will provide the wet storage volumes originally approved. The calculations
<br /> provided indicate that pond outlet flows for the 1-year through 100-year storm events will not be increased
<br /> from existing conditions.
<br /> The proposed pond improvements as shown of the Coffin and Gronberg grading plan dated 2-10-00 are
<br /> acceptable from an engineering standpoint. If the City approves the project, the applicant should provide the
<br /> City with a record plan of the improvements within 60 days of project completion.The City should review and
<br /> approve proposed haul routes if excavated materials will be disposed of off site.
<br /> Please contact me at(651)604-4863 if you have any questions regarding this matter.
<br /> Yours very truly,
<br /> BONESTROO,ROSENE,ANDERLIK&ASSOCIATES,INC.
<br /> /�y+9
<br /> Tom Kell4g,
<br /> Cc: Greg Gappa,City of Orono
<br /> 2335 West Highway 36 ■ St. Paul, MN 55113 ■ 651-636-4600 ■ Fax: 651-636-1311
<br />
|