Agenda - Council - 10/23/2018 - Laserfiche WebLink

Home

reviewed several design alternatives and recommended the following. Reconstruct all streets in their current footprints using pavement sections similar to the existing sections, and replace all existing bituminous curb on 146th Avenue and Ferret Street. The DRC also recommended extending the existing watermain 147th Avenue to the west side of Ferret Street since 147th Avenue will likely not be modified during redevelopment, and construct concrete curb and gutter along 147th Avenue to Ferret Street. Due to the uncertainty of future redevelopment scenarios, Staff determined there are too many unknowns to justify the expense of realigning or extending any of the streets at this time. This Feasibility Report proposes to reconstruct the existing bituminous pavement section using the Full Depth Reclamation (FDR) process. This process generally involves reclaiming the entire existing bituminous pavement section, along with an inch or more of the existing aggregate base material. A portion of this reclaim (ground and mixed) material is proposed to be spread and compacted on top of the reshaped and compacted existing aggregate base. Three and one-half inches of bituminous pavement is proposed to be placed on top of a minimum of 6 inches of aggregate base/reclaim material. This pavement section generally meets the existing pavement section on these streets, and would generally meet the City of Ramsey's standard pavement design for residential streets. Though the design strength of the proposed pavement section may be slightly less than a typical industrial park pavement section, Staff believes it will provide a useful life of at least 30 years based on the life achieved by the existing pavement section. And due to the large number of parcels currently on the market in this development, Staff believes there is great potential for redevelop of HY-10 Ramsey within the next 10 to 20 years, which could result in the potential realignment of streets. The engineer's opinion of probable costs including streets, drainage, and public water utilities is $287,646.45. Estimated costs include 10-percent contingency costs plus 23-percent indirect costs for administrative, engineering, finance and legal costs. A summary of the engineer's opinion of probable costs is included in Appendix B. The project is proposed to be funded using a combination of special assessments to benefitting properties, street reconstruction bond proceeds, and stormwater utility funds. Sewer and Water Utility Funds would be used to pay for any public utility improvements. Nine (9) parcels have been identified as receiving special benefit from the improvements. Four of the parcels have permanent structures, and the other five are undeveloped. Several of these parcels are currently listed for sale, including two City -owned parcels. These parcels are identified in the preliminary Assessment Map and Roll, which is attached in Appendix C. Assessments were calculated using the area method, which is typically used for commercial applications. 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 proposed for October 8, 2019. 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. Feasibility Report HY-10 Ramsey Street Reconstructions City of Ramsey Project No. 18-02 Page 4