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Ms. Michele McPherson • November 20, 2001 Page Three pad shown. If a home is built large enough to fill the entire pad, during a 100-year storm this residence would have water 10 feet outside their back door. Some modification to the drainage plan or a restriction on the house pad for this lot and any others in a similar situation should be made to make the minimum distance from a 100-year flood to a residence 20 feet. There is also a question that needs to be addressed relative to the existing culvert under Fillmore Street and the high water level predicted. The 897 high water level appears to back up through the existing culvert and potentially endanger an existing residence on the east side of Fillmore Street. More detailed information will have to be submitted proving that there will be no backup of the flood elevation from Park Pointe endangering any existing residences off of the project site. • In an effort to minimize tree removal from the site, there are some locations where drainage from one lot across another will not follow normally prescribed easements around the perimeter of the lots. In these locations, additional easements will need to be provided on the final plat. • The relatively steep street connection to Eagle's Marsh causes a couple of difficult lots to build on, namely Lots 1 and 2, Block 4. Currently, the types of houses shown would be tuck-under garages with relatively steep back yards ending in a retaining wall with a maximum height of 12 feet. This is an undesirable situation. We will • continue to work with the Developer to try to find a compromise that makes a more attractive lot for construction of a residential home. • There are a number of islands shown in the cul-de-sacs and other locations throughout the plat. City staff from the Public Works Department is currently trying to develop standards for these types of islands to ensure that they do not compromise snow-plowing activities or emergency vehicle access. Once the standards are developed, all of the proposed islands will either have to meet these standards or be eliminated. C. UTILITY PLAN • This development is currently in the City's Urban Service Area but is shown in the City's Comprehensive Plan as obtaining sanitary sewer and water services no earlier than 2007. In order to develop this plat at this time, a Land Use Amendment will be required to allow this development to move forward prior to 2007. • In order to provide sanitary sewer and water services to this site, it will need to be extended along 175th Avenue from the intersection of Twin Lakes Road. This can be accomplished with the planned upgrade of 175th Avenue in 2002. City Council will need to deal with this issue and determine if the Developer will need to petition for these improvements and what portion of the improvements up to the entire cost will be borne by the Park Pointe development. • The preliminary layout of sanitary sewer in the development calls for a lift station to service the easterly portion of the plat. This is necessary prior to deeper gravity • sanitary sewer being extended to this portion of the plat from the north. The layout of the sewer and the location of the lift station needs to be re-evaluated in an effort to Howarc R. Green Comoany Ltr 11-19-01 McPherson.rev CONSULTING ENGINEERS