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<br />.M~ <br /> <br />CONSULTING ENGINEERS <br /> <br />CIVil ENGINEERING: <br /> <br />ENVIRONMENTAl <br /> <br />MUNICIPAl <br /> <br />PlANNING <br /> <br />STRUCTURAL <br /> <br />eURVEYING <br /> <br />TRAFFIC <br /> <br />TRANSPORTATION <br /> <br />1326 Energy Park Drive <br />St. Paul, MN 55108 <br />612.644.4389 <br />Fax: 612.644.9446 <br /> <br />9800 Shelard Parkway <br />eAinneapolis, MN 55441 <br />612.546.0432 <br />Fax: 612.544-6398 <br /> <br />December 16, 1993 <br />File: 230-205-11 <br /> <br />Mr. Steve Ach <br />City Planner <br />City of Elk River <br />13065 Orono Parkway <br />Elk River, MN 55330 <br /> <br />RE: OAK P ARC PLAZA / SUPERAMERICA PLAN REVIEW <br /> <br />Dear Mr. Ach: <br /> <br />As requested, we have reviewed the preliminary plat for the Oak Parc Plaza development <br />and site plan for the proposed SuperAmerica. Based on our review, we would offer the <br />following comments: <br /> <br />1. <br /> <br />The Oak Parc Plaza preliminary plat, grading plan, and utilities plan were prepared <br />by John Oliver & Associates. The preliminary plat and utility plan were revised <br />as of December 8, 1993. The grading plan is dated December 1, 1993. The <br />preliminary utility plan, grading plan, and landscape plan for the SuperAmerica site <br />were prepared by lnsites and were dated November 19, 1993. <br /> <br />2. <br /> <br />Grading Plan <br /> <br />The grading plan for Oak Parc Plaza shows the area outside the SuperAmerica site <br />to be graded flat. These are fairly large sites and it would be advisable to provide <br />some grade across them, perhaps a minimum 1 % grade should be provided such that <br />drainage can be accomplished adequately when these sites are developed. The <br />grading plan shows a sedimentation pond on the east side of the outlot. This <br />sedimentation pond is shown at one of the high points on the development. The <br />highest location there is 950 and the lowest location of the pond is 932, indicating <br />a cut of approximately 18 feet. As we discussed at the concept review meeting, <br />there was concern when this was originally proposed that the integrity of the slope <br />and the wooded area adjacent to the east side of the plat be maintained. A better <br />location on the site should be sought for the location of this sedimentation pond. <br />