CCP 05-27-1997 - Laserfiche WebLink

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I I Watermain I. The site has both 8 and 12-inch ductile iron pipe (DIP) watermain looped through the District, as shown on Exhibit 4. Water service is currently provided to all existing businesses along West I Round Lake Road, including Welsh's Phase I site, currently under construction. It appears, however, that the 12-inch loop within the former 14th Street NE right-of-way will require removal I due to the amount of grading necessary for the proposed development of parcels within Welsh Companies' Phases n, ill, and IV improvements. The 8-inch watermain within West Round Lake Road extends south to 13th Street NE, and east to the southerly limit of 14th Street NE, where I it reconnects to the 12-inch watermain extending east to Old Highway 10. The existing 8-inch watermain will most likely remain in place to maintain existing services, pressure, and I redundancy, at least until the area in the southwest corner of the site is developed. At such time, the 8-inch waterrnain could be utilized as part of the development's internal watermain loop, or I it could be rerouted to better facilitate the development of those parcels. Although a detailed water distribution system analysis has not been conducted, the existing pressures at 14th Avenue I and West Round Lake Road are sufficient to provide basic service for the development. It is recommended that the entire area be analyzed upon the City's receipt of potential development I . plans which should better defme land use and fire flow requirements in the overall GBD. .1 Storm Sewer I The existing site currently has no developed storm drainage facilities. According to City ordinance, development within the GBD must treat on-site rnnoff within each respective property, prior to discharging to the City's proposed storm water system. The overall site generally drains I from the north to the south and west into various wetlands on the site and, eventually, into the Minnesota Department of Transportation (MnDOT) right-of-way, where it collects at the I approximate location of the Minnesota Transfer railroad bridge, and is directed west into the MnDOT drainage system. As a result, storm water discharge after site development will be I limited to the existing storm water runoff rate under the undeveloped condition. I In addition to the storm sewer restrictions outlined above, there are currently several wetlands within the District. The size, location, and boundaries of these areas have recently been I delineated by a certified wetland expert as required prior to any plan approval for the area. The wetlands lie both within private properties and within proposed public right-of-way. It is planned I · that the mitigation of wetlands within the development will be accomplished at the east end of 14th Street Northeast. Moreover, it has been proposed, and discussed with Welsh Companies, that the I developer mitigate any wetlands within public right-of-way in conjunction with mitigation required FEAS-520_089 -3- 520-089-10