Book # 74 3-12-96-7-9-96, 96-055- 96-150

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S Page 2 There are basically two options to restoring the storm sewer system's capacity and eliminate the flooding problem. Moving the weir gate upstream of the storm sewer outlet or extending the storm sewer outlet to the down stream side of the weir. The normal water elevation on the down stream side of the weir is the normal water elevation of Long Lake which is 18 inches lower than Pike Lake. This will enable the storm sewer system to drain empty and have much greater capacity at all time other than those few occasions when Long Lake is at a high flood level. On October 3, 1995, David Rholl,Design Engineer with Ramsey County, and Les Proper with the City met with residents in the flooding area to discuss the options for correcting the flooding problem. The residents who had lots along the channel were strongly opposed to moving the weir upstream of the storm sewer outlet as lowering the water elevation of the channel 18 inches would affect the aesthetics and use of the channel for boat access to Pike Lake. Therefore the option of extending the storm sewer outlet to the downstream side of the weir was pursued. The proposed plan is to extend the storm sewer outlet along the north side of the channel to the Long Lake Road box culvert where a special concrete section, incorporating a new weir,would be installed. See attached storm sewer extension plan. The majority of the construction would take place in the channel easement and on the two adjacent lots at 1300 Long Lake Road and 1315 Kari Land. The owners of both of these lots have work with us in the development of the plan and are in agreement with the current proposed plan. The Public Works Departments of Ramsey County and the City have work jointly on this proposed project and are rillthat the project cost be split fifty fifty since both County and City facilities and property are affected. The I estimated cost of the project, including engineering, right-of-way and tree replacement is $122,715. The City's share would be paid for from the Storm Water Utility Fund. $50,000 is programed in the 5 Year Capital Improvement Plan for this project. The Ramsey County Public Works Department has prepared the construction plans and specifications and would handle the construction inspection. However, it is proposed that the City of New Brighton be the contracting agent as Ramsey County's time requirements for letting a contract are very long and could put back the construction of this project until 1997. The minimum amount of time required by the County to award a contract is three months. The City can award a contract in about one month. We are proposing a bid opening date of August 5, 1996, with bids presented to the City Council for consideration of award on the August 13, 1996, Council meeting. Permits from the Rice Creek Watershed,Army Corps of Engineers, and the Department of Natural Resources have been submitted and will be approved prior to the August 5, 1996, bid opening. The COOPERATIVE AGREEMENT NO. 96012 defines the terms between the City and County for the proposed project, i.e.responsibilities for construction and ownership and that the cost of the project will be shared equally. • G IENGICCR-96195-6RPT.wPD