Agenda - Council - 05/28/2024 - Laserfiche WebLink

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correction to help keep water out of the subbase material. The new pavement section placed on top of this is proposed to be 8-inches of aggregate base below 3.5-inches new bituminous pavement. The reconstruction process is similar to the FDR process except the excavation depth will be approximately 18-inches rather than 3-inches. The material is not considered clean because it contains silt and clay, and will become property of the Contractor. The geotextile fabric is placed to separate the poor underlying soils from the aggregate base. The extra aggregate base thickness along with the 1-foot of sand build additional strength to help the pavement bridge the poor soils. During construction,the Contractor will only sub-cut out what they can backfill to aggregate base by the end of the work day. On similar projects this has been 300 to 400 feet per day. Preliminary Schedule Remaining •Council awards contract to the lowest responsible bidder o May 28, 2024 o Coordinating award with the City of Nowthen •Contractor begins construction o On or around July 1, 2024 (dependent on Contractor's schedule) • Substantial Completion o September 30, 2024 o Final lift of bituminous pavement in-place,boulevard restoration in-place •Final Completion o June 30, 2025 o Verify final turf establishment,project clean up complete o Not enough time in the fall for turf establishment to take place after the substantial completion date. The proposed improvements are designated as City Improvement Project#24-03, 2024 NE Ramsey Street Reconstructions. 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 under the Engineering Department webpage on the City's website. 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#24-13 9 accepting bids and awarding a contract for 2024 NE Ramsey Street Reconstructions, Improvement Project#24-03, to GMH Asphalt Corporation for the total bid in the amount of$2,441,039.52. Alternative#2—Motion to adopt Resolution#24-139 accepting bids and awarding a contract for 2024 NE Ramsey Street Reconstructions, Improvement Project#24-03, to GMH Asphalt Corporation for the base bid in the amount of$2,034,319.94. Alternative#3—Motion of other. Funding Source: