Agenda - Council - 06/24/2003 - Laserfiche WebLink

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-266- Tiger Meadows Preliminary Plat Review May 30, 2003, revised June 20, 2003 2 of 4 Grading and Drainage: Drainage from the street system is collected by catch basins at four locations. Each pair of catch basins discharges out of a flared end section into a drainage swale. The two drainage swales located within Block 1 discharge into a sedimentation pond which in mm drains into the wetland/open water pond located in the northeastern comer of the plat. The two drainage swales drain into a remaining depressional area located in the south east portion of Block 3. Staff has reviewed the drainage and grading plan and offers the following comments: The 100 year flood elevation is 887.0. This contour should be illustrated on the grading plan to ensure that areas lower than th_ts elevation are encumbered with drainage and utility easements. The septic field site shown for Lot 1, Block 1, is below the 888 contour and may be with_in the 100 year flood plain. Additional documentation must be provided to show that this is not the case. ' Log of soil borings must be submitted. The size of each storm pipe should be added to the plan A permit must be obtained from the Lower Rum River Water Management Organization for this development. This review will involve a review, of the drainage elevations and house pad elevations. Since there is no outlet for this subdivision, low floor elevations will need to meet the WMO requirements adjacent to temporary flooded ponds. Access: The plat proposes access-~o the area street system at three locations: 170th Street would connect to Tiger Street at a location approximately 200 to 250 feet north of Armstrong Boulevard. A second access point would connect Rabbit Street from the north end of the plat to its current southern terminus in Alicia Addition to the north. It should be noted that this roadway connection would not be completed at this time, since a 330 foot wide, 20 acre parcel, lies between the subject parcel and Alicia Addition. The northern terminus of Rabbit street within th/s plat must be provided with a temporary turn around until the adjacent parcel develops. Rabbit Street is also being extended to the southeastern plat boundary line. The Board of Adjustment granted a variance ~:o the 600 foot maximum cul-de-sac length requirement at their June 5, 2003 meeting. Rabbit Street extends approx/rnately 957 feet to the southeastern plat boundary line. The City Council is interested in providing for a connection from Rabbit Street to Nutria Street (located in Autumn Heights subdivision east of the subject property). Staff and the City Attorney are researching the best option for providing this connection. Right of access should be.dedicated to Anoka County along Count>, Road 83, except for the existing driveway access. Utilities: All lots will be served by an on-site sewer system and private well.