R2008-221 AUTHORIZING AGREEMENT SKS ENGINEERS

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� City staffapproached SKS to perform a survey of the slide area and provide some preliminary �I, work to assess the damage and recommend repair options to stabilize the slide and keep it from I encroaching onto Lincoln Park Drive. The preliminary work has been completed and it is �, necessary to execute a more extensive design effort to prepare the plans and specifications I necessary to contain this damage. � SKS is a local firm specializing in geotechnical work such as is required to stabilize the Lincoln II, Park Drive landslide. They have assisted the City on projects such as this in the past. I SKS proposes a fee of$20,000 to complete the necessary design work to remove the unstable �� soil and place stable material in its place. The work includes meeting with contractors, ��, performing site investigation work, preparing plans and specifications, and perform construction �I inspection assistance. There are numerous unknowns involved in work of this sort and it will be ', necessary to have qualified geotechnical inspectors assisting City staffduring the slope repair work that will occur at the site once the project begins. �'� Decatur Park District Involvement I� In response to concerns raised by the City Council at the October 20 meeting, City staff inet with the Decatur Park District and reviewed property ownership. Documents indicate that the Park ' District owns the land south of the City's Lincoln Park Drive right of way and north of the I Sangamon River. This makes up about 45 feet of the steep slope area that contains a portion of 'i the land slide. The bike trail on this section of roadway is contained within the City owned right ' of way. A map is attached detailing the property ownership. At a Park District Board meeting held on Wednesday, November 19, 2008, the District agreed to ', participate 50% in the engineering design portion of the project. The attached resolution indicates that authorization is subject to Park District approval to reimburse the City for 50%of the engineering design costs. The Board also tentatively agreed to pay 20%of construction costs up to a maximum of$50,000 toward an estimated $250,000 project cost. Twenty percent is , based on the relative cost of the threatened infrastructure. The cost of the bike trail is roughly I 20%of the cost of the street. , City/Park District Intergovemmental Agreement II Over the next few months, City staffwill negotiate an intergovernmental agreement with the , Park District covering the following items related to Lincoln Park Drive and the Park District's I Lincoln Park property: 1. Agreement to share bidding, construction, and engineering observation during � construction of the slope repairs. This will be prepared when the final design is near completion and a more accurate engineer's estimate is available. ' 2. Agreement on an easement for the construction of a raw water line from Lake ' Tokorazawa to the City's raw water intake near the Lake Decatur Dam. 3. Formalize an agreement for the placement of the Park District's bike trail along Lincoln I Park Drive. ' Page � 2