Agenda - Council - 02/25/2025 - Laserfiche WebLink

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GPR was performed on the streets in 2024, at the time the streets averaged 2.5 to 4.3 inches of bituminous over 2.5 to 4.8 inches of aggregate base,with much variability from street to street. 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 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. In the project area, 8 of the 12 existing flumes were replaced with storm sewer inlets and storm sewer piping. It was not found feasible to replace the remaining 4 flumes,primarily due to the excessive grading and impact to properties which would be required. 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. The Zirconium Street cul-de-sac is proposed to be built back to a 100-foot diameter, centered within the existing right-of-way. The existing cul-de-sac is 165 feet in diameter. By replacing the cul-de-sac to the standard dimensions, significant savings in both construction and long-term maintenance will occur. The existing driveways and boulevard adjacent to the cul-de-sac will be extended approximately 33 feet. At this time staff is not proposing to adjust the existing right-of-way,which is 200 feet in diameter. A standard cul-de-sac has a 120-foot diameter right-of-way. The plans angled the driveways to accommodate extending the property lines in the future, if it's desired. Staff will ask for discussion on resizing the right-of-way at a future meeting. Preliminary Schedule Remaining •Council approves plans and specifications/authorizes ads for bids o February 25, 2025 • Staff Receives Bids o March 31, 2025 •Council Awards Contract to the Lowest Responsible Bidder o April 8, 2025 •Contractor Begins Construction o Spring 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 Final plans are not attached to this case to prevent potential bidders from downloading plans attached to the case to prepare and submit their bids,rather than purchasing the plans through QuestCDN,the electronic bidding software used by the City of Ramsey. This ensures all bidders are bidding off the same set of plans, and all bidders are notified of any plan revisions (addenda) issued during the bidding process. Attached is the title sheet showing the scope of the improvements, as well as a plan sheet showing the typical sections,which includes information on the proposed pavement section. Plans are available upon request from the City Engineer. Staff proposes to bid projects separately,but to bid and award projects as close together as practical,which generally allows for a better bidding environment for the City.