05/09/2001 P&Z Packet - Laserfiche WebLink

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.TKDA • TOLTZ, KING, DUVALL, ANDERSON AND ASSOCIATES, INCORPORATED ENGINEERS • ARCHITECTS • PLANNERS MEMORANDUM To: 1500 PIPER JAFFRAY PLAZA 444 CEDAR STREET SAINT PAUL, MINNESOTA 551 01 -21 40 PHONE: 651/292 -4400 FAX: 651/292 -0083 John Powell Reference: Lino Lakes Marketplace Copies To: Jeff Smyser Lino Lakes, Minnesota From: Jason Wedel Date: May 1, 2001 Commission No. 11985 -012 The City originally received preliminary plans for the Lino Lakes Marketplace site on January 16, 2001. I reviewed the plans and submitted my comments in a memo dated January 23, 2001. Since that time, the site layout has been revised. The City received revised plans on April 9, 2001. My comments regarding the revised plans are as follows: 1. The City of Lino Lakes requires that the 1, 10, and 100 year storm calculations be provided for both the predevelopment and post development run off. To date, the City has only received the 1 and 100 year storm calculations. The 10 -year storm calculations still need to be provided. In addition, the storm calculations that were provided model the use of a 2" culvert or orifice for rate control. This is not practical and will not be accepted because an orifice this size is prone to clogging. 2. The grading plan includes the proposed storm sewer. To aid the City with our review additional information must be provided for the storm sewer including the size, length, and slope of the pipe. It also appears that catch basin CB57 is located outside of the proposed parking lot. What drainage is CB57 intended to pick up? 3. The City of Lino Lakes requires that the storm sewer for commercial areas must be designed and sized to accommodate a 10 -year storm event. These calculations need to be provided for review. 4. The City of Lino Lakes has requirements for low floor elevations of buildings that are adjacent to ponds or wetlands. The low floor must be either 4 feet above the normal water elevation or 2 feet above the 100 -year high water elevation, which ever is greater. The City also requires that the lowest opening of the building must be 1 foot above the emergency overflow of an adjacent pond or wetland. All proposed ponds must have the normal water elevation and the 100 -year high water elevation labeled, as well as the An Equal Opportunity Employer