02/11/2004 P&Z Packet - Laserfiche WebLink

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TKDA 4 ENGINEERS • ARCHITECTS • PLANNERS MEMORANDUM To: James Studenski, City Engineer Reference: Justin's Preserve 1500 Piper Jaffray Plaza 444 Cedar Street Saint Paul, MN 55101 -2140 (651) 292 -4400 (651) 292-0083 fax www.tkda.com Copies To: City of Lino Lakes, Minnesota From: Scott A. Brink, P.E. Date: February 4, 2004 Comm. No. 12976 -002 Routing: A review memorandum for this development was previously prepared and dated December 4, 2003. Since that time, additional documents have been received as follows: 1. Existing Conditions and Preliminary Plat by E.G. Rud and Sons, Inc., dated January 16, 2004, and received by the City of Lino Lakes January 17, 2004. 2. Preliminary Grading, Drainage, Erosion Control, and Utility Plan by Plowe Engineering, Inc., dated • January 16, 2004, and received by the City of Lino Lakes January 17, 2004. The property is located along the south side of Baldwin Lake adjacent to White Pine Road, about 900 feet west of Laurere Avenue. The proposed plat and development essentially splits an existing 14.2 acre parcel of property into three parcels, Lot 1 (3.6 acres), Lot 2 (8.4 acres), and Lot 3 (2.3 acres). The previous submittal provided for splitting the parcel into two lots of approximately 2.2 acres and 11.8 acres. The total area of the property is slightly larger (0.3) from the previous submittal, as an existing house along White Pine Road has been added to the property. It is proposed that existing single family homes will remain on Lots 2 and 3 while a new single family home will be constructed on Lot 1. The following review comments are provided: 1. The proposed subdivision will require the review and approval of the Rice Creek Watershed District (RCWD). Rules indicate that any subdivision of property over 5 acres in size requires a permit from RCWD. 2. A First Floor Elevation (]~'FE) of 890.0 for the new home is proposed. A low floor lowest opening elevation of 989.6 is provided on the Plan, and appears to be in error (should be 889.6 ?) and must be revised accordingly. The 100 -year High Water Elevation of Baldwin Lake is identified as 885.30 according to the survey provided. The City's minimum building elevation floor elevation (including basement), must be the greatest of the following: 2 feet above the Design Flood Elevation, 4 feet above the water table, or 1 foot higher than the emergency overflow elevation. The elevations provided, therefore, would meet requirements based on Baldwin Lake flood elevations. However, the groundwater elevation is not known, and the lowest floor elevation would need to be 4 feet above the water table as required. In addition, the edge of the existing wetland bordering the future home site is An Employee Owned Company Promoting Affirmative Action and Equal Opportunity