Agenda - Council - 10/24/2017 - Laserfiche WebLink

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placed, generally meeting the City of Ramsey's standard pavement design. The existing storm sewer system will be upgraded to meet City design standards. This will include additional catch basins placed along the roadway, and replacing the existing bituminous flumes where possible. The engineer's opinion of probable costs for completing the proposed improvements on the North Forty as outlined in this report is $518,685.13. Estimated costs include 5% contingency costs plus 23% indirect costs for administrative, engineering, finance and legal costs. A summary of the engineer's opinion of probable costs is included inAppendix B. A total of 15 assessable parcels have been identified. Staff recommends applying 25-percent of the eligible improvement costs equally across the 15 assessable properties using the "per lot" assessment method. This results in a proposed preliminary assessment rate of $8,644.75 per assessable parcel. Staff recommends ordering a special benefit consultation report for this project to verify the proposed assessment amount will not exceed the benefit to the properties. If the report concludes the benefit to the properties is less than the proposed preliminary assessment rate, Staff will then propose to lower the assessment rate accordingly during the Assessment Hearing, which is scheduled for October 9, 2018. If the report verifies the assessment rate as proposed is justified, Staff will propose to adopt the final assessment roll using the rate as preliminarily proposed. Five soil borings were completed by Braun Intertec to assist with the preparation of this report. Pavement design recommendations were offered by Braun and Staff considered and incorporated to varying degrees while preparing this report. Ground Penetrating Radar (GPR) was conducted on all street segments within the project. The GPR identifies existing bituminous pavement and aggregate base thicknesses, and is used to help staff determine the appropriate treatment. Copies of Braun Intertec's GPR results and Geotechnical Exploration report are included in Appendix Cof the Feasibility Report. This improvement project, which is listed in the City's current 10-year Capital Improvement Plan, is proposed to be funded using a combination of special assessments to benefiting properties, street reconstruction bond proceeds, and storm sewer funds. Staff has not yet discussed the proposed improvements with local property owners. However, Staff has scheduled a meeting for November 7, 2017 with local property owners for the purpose of explaining the proposed improvements and assessments in more detail, and to gather their input on the project, including any information which should be explored in more detail during development of plans and specifications. Staff will incorporate comments and present this information to Council during the Public Hearing. This project would best be constructed in conjunction with the River's Bend Street Reconstructions and the Stanhope Terrace Street Reconstructions projects, is necessary, feasible, and cost-effective from an engineering standpoint, and can be constructed as proposed herein. Notification: Upon Council approval, Staff will publish the Public Hearing Notice in the Anoka Union Herald on October 27 and November 3, 2017. Staff will also mail Public Hearing Notices to the owners of all benefiting properties. Observations/Alternatives: Observations: Developed properties along the project corridor may have private irrigation systems. Impacts to these systems may occur where the existing curb and gutter is being replaced. Staff will notify property owners in writing of the pending construction as far in advance of construction as possible to allow them time to move their irrigation system components out of the construction area, after which they may replace the components in their original locations. Alternatives: