Agenda - Council - 04/08/2025 - Laserfiche WebLink

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GPR was performed in 2020 at the time the streets averaged 3.3 to 3.7 inches of bituminous over 4.1 to 6.6 inches of aggregate base. Staff review of the geotechnical report found clean sands, ideal for pavement support within the project area. Additionally, groundwater is not anticipated to be a concern for the street reconstruction. Proposed Improvements The bituminous curbing is proposed to be replaced with surmountable concrete curb and gutter. At driveways, a curb cut similar to what is typically placed in B-style curb will be placed to avoid a high transition from the roadway to driveways. The new pavement section will include 3.5-inches of new bituminous pavement over 4-inches of aggregate base. The aggregate base is proposed to be made of recycled reclamation. The Xenolith Street flume is proposed to be replaced with a new concrete flume, only minor grading to the existing swale to tie-in is proposed. There is not sufficient depth to convert this flume to a storm sewer inlet and run piping to the existing pond. The 159 th Lane flume is proposed to be replaced with storm sewer inlets and piping running to the existing pond, which has sufficient depth to handle the pipe system. Restoration of the impacted boulevards will include a minimum of 4-inches topsoil and hydroseed with a residential turf seed mix. Though the pavement is generally going back to the same location and elevation, driveway aprons will be replaced to match into the new concrete curb and gutter. In general, the boulevard impacts and driveway impacts will occur within 6 feet of the existing pavement. Preliminary Schedule Remaining • Council Awards Contract to the Lowest Responsible Bidder o April 8, 2025 • Contractor Begins Construction o Spring / Summer 2025 • Contractor Substantially Completes Construction o New bituminous pavement in -place, topsoil and seed in -place o August 30, 2025 • Contractor Final Completion o Verify final restoration; punch list created o September 30, 2025 Notification: If Council accepts the bids and awards a contract for construction of the improvements, letters will be mailed to property owners with updates on the project status. Engineering Staff maintains City Improvement project webpages with the most current project information. Time Frame/Observations/Alternatives: Timeframe: Staff estimates up to 10 minutes will be needed to present this case and respond to questions. Alternatives: Alternative # 1 — Motion to adopt Resolution #25-070 awarding a contract to Park Construction Company in the amount of $423,698.35 for Sorteberg's Street Reconstructions, Improvement Project #25-06. Alternative #2 — Motion of other. Funding Source: