Agenda - Council - 08/12/2024 - Laserfiche WebLink

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• 142nd Avenue & Armstrong Boulevard o Generally located south of Riverdale Drive o 0.84 miles of 24' wide rural section During the November 21, 2023 Public Works Committee (PWC) meeting, Staff was directed to investigate the addition of streets within the Alpaca Estates 1st, 2nd & 3rd additions to the project scope. These include Alpaca Street between Riverdale Drive and 142nd Avenue, as well as 144th Avenue cul-de-sac off of Armstrong Boulevard. The intent of this directive was to complete the entire neighborhood at one time, rather than multiple mobilizations and impacts to the same residents. The Alpaca Estates streets are not in the current CIP, and would be funded with Pavement Management Funds. Staff had originally not included Alpaca Estates in the CIP due to the pavement conditions being below thresholds for an overlay project, but also not in such bad condition as to justify a street reconstruction when compared to other neighborhood streets across the City. In May 2024, staff began final project reviews prior to beginning plans, and noted the condition of Armstrong Blvd and 142nd Ave being worse than noted in 2023. The streets include large block cracking and several areas of alligator cracking within the wheel paths. However, in general the streets drive well and do not have significant potholes. Though an overlay improvement is no longer a viable option, Armstrong Blvd, 1421d Ave, and Alpaca Estates are good candidates for a reclamation project, and Staff took steps to modify the draft plans accordingly. Based on the engineer's estimate to include all the proposed segments as a reclamation project, the Pavement Management (PM) Fund would be projected to overrun approximately $125,000 over the proposed 2024 budget, and the Municipal State Aid (MSA) Fund would be projected to overrun approximately $263,000 over the proposed 2024 budget. This was discussed with the City Finance Director, and it was found that a nearly $200,000 shortfall for 2025 could potentially occur, due to unknown State revenue sharing. In 2025, the CIP proposes to reconstruct Sunwood Drive between CSAH 5 and Erkium Street, Alpine Drive between CR 57 and CSAH 5, and Alpine Drive between CSAH 5 and TH 47. If the City chooses to perform a reclamation of Armstrong Blvd, 142nd Ave, and Alpaca Estates in 2024, one of the three segments proposed for reconstruction in 2025 could not be completed. Staff finds the proposed 2025 CIP street reconstruction projects have a higher priority, largely due to the poor pavement conditions and higher average daily traffic levels, which in turn will provide a greater benefit for the community as a whole. Staff anticipates relatively minor street patching will be required on Armstrong Blvd, 1421d Ave, and Alpaca Estates over the next 2 to 3 years, and are planning to add a reclamation project for this neighborhood within the next 3 to 5 years as part of the 2025 to 2034 CIP. Proposed Improvements Review of ground penetrating radar (GPR) data indicates sufficient existing bituminous thickness to perform a 2-inch mill and bituminous overlay in all project areas as proposed. Per typical overly improvements, spot concrete curb and gutter repairs will be performed on damaged curb. Where feasible, the City has switched to a saw & seal method for curb cracks at a significant cost savings. This is performed on hairline cracks, without vertical displacement. For the areas of bituminous curbing, repairs are not proposed, though some work on bituminous flumes will occur. Municipal sewer and water only exist under McKinley Street. Repairs to watermain and sanitary sewer are not proposed with this project. Minor storm sewer structure repairs, typically re -grouting catch basins, is proposed. The project areas do not have any pedestrian facilities, so no upgrades to pedestrian ramps will be required with these improvements. Preliminary Schedule Remaining • Council awards contract to the lowest responsible bidder o August 12, 2024 • Contractor begins construction o On or about August 26, 2024 (dependent on Contractor's schedule)