Agenda - Council - 05/26/2020 - Laserfiche WebLink

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the Riverstone residential development. Currently there are no plans to begin construction of the Alpha/AKM Farms development. Streets and Trails Approximately 1,000 feet of Puma Street and the adjacent regional trail south of Alpine Drive must be realigned and reconstructed to replace the existing temporary street section with a permanent street section including bituminous pavement, concrete curb and gutter, storm sewer, and associated appurtenant improvements. Municipal trunk utilities must also be extended. The proposed street and trail improvements must meet all applicable State Aid standards including curb and gutter design, pavement structural capacity, horizontal and vertical curves, lane and shoulder widths, clear zones, etc. A 9-ton all-weather pavement design will be required for Puma Street. As plans were developed, submittals were made to the State Aid office to obtain all required State Aid approvals before awarding a contract for construction. Trunk Watermain Trunk 16-inch DIP watermain is proposed to be extended to the north to serve the Riverstone 4th Addition and the Alpha/AKM Farms development with water, and to provide a looped watermain system along Puma Street and Alpine Drive to more reliably serve properties in the immediate area, provide better fire flows, and provide better water quality by removing a dead end. Alpine Drive is scheduled to be reconstructed in 2025 per the City's current Capital Improvement Program (CIP), at which time the existing trunk watermain running parallel to Armstrong Boulevard will be connected to the watermain installed under Puma Street with this project. Trunk Sanitary Sewer Trunk sanitary sewer (8" PVC) is proposed to be extended to the north to serve the Riverstone 4th Addition and the Alpha/AKM Farms development with sanitary sewer. The sewer is not designed to serve properties north of Alpine Drive with municipal sewer. Those properties can be served, if needed, from a future trunk sewer line along Armstrong Boulevard. Storm Sewer The proposed Puma Street improvements include construction of a permanent urban street section with concrete curb and gutter and storm sewer improvements, including connections to an adjacent stormwater pond in the Riverstone development. Notification: Pending Council approval, advertisements for bids will be published twice in the City's official newspaper, the Anoka Union Herald, as well as in Finance and Commerce, on Friday, May 29th, and Friday, June 5th. Observations/Alternatives: Alternatives: Alternative #1 — Motion to adopt Resolution #20-106 approving plans and specifications and authorizing advertisements for bids for Puma Street Improvements, Improvement Project #20-04. Alternative #2 — Motion denying adoption of Resolution #20-106 at this time. Funding Source: Bolton & Menk prepared final plans and specifications for the Puma Street improvements. The have estimated construction costs for this project at $837,175. This includes $419,565 for street and trail improvements, $91,865 for storm sewer improvements, $148,000 for trunk sanitary sewer improvements, and $177,745 for trunk water improvements. Estimated project costs, including 25-percent indirect costs for administrative, engineering, finance and legal costs, total $1,046,468.75. An engineering services proposal was previously secured from Bolton & Menk on March 17, 2020, which included a not -to -exceed fee of $8,930 for construction administration and staking, which will be considered at the time bids are accepted.