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S BA.Mittelsteadt,P.E. <br /> 350 Westwood Lake Office Bret A.Weiss,P.E. <br /> 8441 Wayzata Boulevard Peter R.Wi4enbring.P.E. ' <br /> Minneapolis, MN 55426 Donald W.Sterna,P.E. <br /> Ronald B. Bray,P.E. <br /> • 612-541-4800 <br /> &Associates, Inc. FAX 541-1700 <br /> Memorandum <br /> To: Honorable Mayor, City Council and Staff <br /> City of St.Anthony <br /> From: Todd E. Hubmer,P.E. <br /> Peter R. Willenbring, P.E. <br /> Date: February 2, 1999 <br /> Re: Response to Questions Relating to Silver Point Park <br /> WSB Project No. 1065.40 <br /> We have prepared the following answers to the questions you requested in your memo from <br /> January 27, 1999. <br /> 1. What is the difference in price of the pipes for Wilson -36" versus a 72"? <br /> • Preliminarily,it is anticipated that the cost to construct the 72-inch system from 29`h Avenue <br /> to 21'h Avenue would be at a minimum of$700,000 over the cost for the existing storm <br /> sewer system in Wilson Street. Furthermore,this system would not be in alignment with the <br /> downstream storm sewer at 27`h Avenue,and conflicts with other utilities will be a significant <br /> issue. <br /> 2. What is the capacity of the Silver Point Park expansion possibilities? <br /> Attached,-please find a figure-showing three possible options for expanding Silver Point Park <br /> improvements, as previously discussed. These options are as follows: <br /> • Option No. 1: Acquire four homes and easements for three properties immediately <br /> south of Silver Point Park. This option would provide an additional 2.44 acres of <br /> land for storm water storage. This option would add 1.5 acre-feet to the 24 acre-feet <br /> of storm water storage now proposed with Silver Point Park. <br /> • Option No. 2: Acquires six homes and easements over three backyard areas <br /> immediately south of Silver Point Park. In addition,Trillium Park could be utilized <br /> and reconfigured along with the frontage road to provide storm water storage. This <br /> option provides an additional 5.34 acres of land for storm water storage. This option <br /> • could provide approximately an additional 27 acre-feet of storm water storage. <br /> M i n n e a p o l i s • S t C l o u d FAWPW1M1065.40\020299-hmc.wpd <br /> Infrastructure Engineers Planners <br /> EOUAL OPPORTUNITY EMPI.OYFR <br />