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Mr. Scott Harlicker <br />Apd117, 2002 <br />Page Two <br /> <br />This issue should be looked at in greater detail. If a street access cannot be provided <br />across the gas lines, consideration should be given to connecting Vance Drive to Tyler <br />Court through the wetland area. This would be consistent with the action taken on a recent <br />plat, Windsor Park Third, where a street was required through the wetlands to eliminate a <br />dead-end cul-de-sac. In that particular plat, the two issues that were slightly different are <br />the streets in Windsor Park Third were public and there was no other means of emergency <br />vehicle access provided. <br /> <br />C. PRELIMINARY GRADING, DRAINAGE, AND EROSION CONTROL PLAN <br /> <br />· This plan should be provided in a larger scale so that the detail of the grading can be <br /> reviewed. <br />· There are several locations on this grading plan where relatively high (8 to 10 feet) <br /> retaining walls are proposed. This would include areas behind multi-family units, adjacent <br /> to wetland, and along both sides of Vance Street as it crosses the wetland to make the <br /> connection with Trott Brook Parkway. All of these retaining wall areas should be terraced <br /> so that the retaining walls are relatively short. <br />· Emergency overflows need to be provided for catch basins at Iow points and all ponds. <br />· Some additional easements need to be provided on the final plat for drainage which cannot <br /> be contained within prescribed drainage and utility easements. <br />· The cul-de-sac with the large island in the center of it on Smith Circle needs to be built to <br /> the new City standard for cul-de-sacs containing islands. A standard detail showing the <br /> minimum radii for these types of installations can be provided. <br /> <br />PRELIMINARY UTILITY PLAN <br /> <br />A County permit will be required for the access point onto CSAH 13. We believe that the <br />County has already given preliminary approval to the access point, but an actual permit will <br />need to be issued for the construction. <br />Sufficient drainage and utility easements will need to be provided for all of the sanitary <br />sewer and watermain serving the multi-family units from pdvate to pdvate roads. The <br />storm sewer servicing the pdvate roads will be considered a pdvate utility and the <br />responsibility of the association to maintain. <br /> <br />If you have any questions regarding these comments, please call. <br />Sincerely, <br /> <br />Howard R. Green Company <br />Te~ j'~.~a u~~ <br /> <br />TJM:tw <br /> <br />Ltr 4--17-02 Hadicker. rev <br /> <br />Howard R, Green Company <br /> CONSULTING ENGINEERS <br /> <br /> <br />