Agenda Packets - 2004/12/13 - Laserfiche WebLink

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5 At the June 7th Work Session, Staff stated that if these construction costs were adjusted to reflect estimated total costs, that segment A would be equal to or greater than $300,000 - the amount promised to the City by Mn/DOT. Given this, Staff recommended that the City contact Mn/DOT and demand that they install the wall through the Ardan Park area (Segment A) as they were originally required to do. The City Council then focused on the cost of constructing a wall through the LaPort Neighborhood (Segment C). This was estimated to be $400,000 after adding in engineering and other costs. Based on this amount, the City Council questioned what impacts this expenditure would have on the City finances. On July 6, 2004, Staff presented two options for Segment A. The option of extending the wall and not impacting the pond (Option 1), and the option of extending a berm and impacting the pond (Option 2). The estimated cost of Option 1 was $277,189.43 and the estimated cost of Option 2 was $267,800.60. Neither option accounted for Staff time and costs. Since the proposal for Segment “A” would be to have Staff administer and inspect the project, this cost should be factored in. The Public Works Director will need to dedicate numerous hours to perform project administration. The Public Works Supervisor will act as the on-site project foreman - again, requiring the dedication of numerous hours. It was conservatively estimated that Segment “A” will require $20,000 to $25,000 in Staff time. Given the following: 1. ) The costs of any option involving a berm in Segment “A” and a project managed by the City will be equal to the amount offered to the City by Mn/DOT. 2.) A wall will require the removal of only a couple of trees, whereas the berm option would require removal of over seventy (70) trees. 3.) The City will be taking on all liability for the construction and performance of a berm, whereas Mn/DOT will take on all responsibility and liability for a wall. Staff continued to recommend that the City require Mn/DOT to construct a noise wall through segment “A”. On July 6, 2004 Staff presented new cost estimates that included engineering and other factors. These cost estimates were: For segment "A", estimated total cost (excluding Staff costs) is $277,189.43 for a wall / berm combination or $267,800.60 for a berm only. Including Staff time both options would be equal to or exceed $300,000. For segment "B", estimated total cost $127,669.50. For segment "C", estimated total cost $426,710.70. On July 12, 2004, the City Council approved Resolution No. 6302 authorizing the preparation of final plans and specifications for Segments B (wetland berm area) and C (the LaPort Neighborhood) of the Trunk Highway 10 Noise Wall / Berm Project. Council also directed Staff to submit a letter to Mn/DOT requesting the installation of a noise abatement wall in the Ardan Park area. On July 22, 2004, Mn/DOT responded by stating that they do not have the capability to produce the Ardan Park wall plans in time for a combined bid letting of the Ardan Park and LaPort wall. Their design staff is all booked up. However, one of their construction crews is free and therefore has the capability to do the construction inspection work in the fall / winter of this year.