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MEMORANDUM I 1326 Energy Park Drive To: Mr. Brian Fritsinger ~ 5t. Paul, MN 55108 From: Gregory J. Stonehouse, P.E. I 612.644-4389 Subject: Gateway Business District Feasibility Study 1-800-888-2923 File: 320-089- I 0 fox: 612-644-9446 Date: May 8, 1997 I . Attached are 14 copies of the above-referenced feasibility study for your use, Please note, the report is "preliminary" in nature, in that we have been required to make assumptions related to the on-site soils conditions, proposed grading of the sites, fire flow requirements, I and the Developer's proposed traffic generation volumes. The report addresses the ulility, storm drainage, street, trailway, and landscaping . improvements to the Gateway Business District. In addition to descriptions of existing CIVIL ENGINEERING: conditions and proposed improvements, the report details the costs associated with each ENVIRONMENTAL portion of the project. The estimated cost of the project ranges between $1,855,000 and ..NIClPAl $2,416,500; depending upon the level of desired improvement and the selection of various FtANN!NG alternates available. Critical issues for your and the Council's consideration consist of the $OllDWASTE following: I STRUCTURAL SU~VEYING Sanitary Sewer TRAme I TRANSPORTATION The major issue related to sanitary sewer is the potential rerouting of the existing l8-inch RCP trunk sewer main from the south side of the rail spur to the proposed roadway north I :~::CRICAl/MECHA\jICAl of the spur. This alternate results in an additional cost of approximately $195,000. The :;-.;G,N::~',\i(; financial feasibility of recuperating these costs should be evaluated in this matter. HVAC FOWER DlmISUT:QN Watermain I SCAD", SYSTE."1 CC,\Hms The main issue related to the watermain improvements is the need to remove the existing I 12-inch watermain in the former 14th Street Northeast right-of-way and reconstruct it in the proposed street north of the rail spur. We will also require coordination with the local I fire department in the determination of necessary fire flows, hydrant coverage, and watermain looping requirements. I Storm Sewer Major issues related to storm sewer include the need for on-site treatment and storage tlfICESIN: I INNEAPOllS within each parcel, the possibility of combining City right-of-way ponding requirements with those of individual parcels, the determination of the placement of any City ponds PRIOR LAKE required, and the coordination of wetland delineation and mitigation. I ST. PAUL WASECA An Equal Opportunity Employer