Agenda - Council - 03/24/2020 - Laserfiche WebLink

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Riverstone 4th Addition by Capstone Homes. Figures showing the locations and scope of both developments are included in Appendix A of the attached Feasibility Report. Capstone Homes plans to start developing the north half of the Riverstone residential development in the spring of 2020, which will require approximately 1,050 feet of Puma Street and an adjacent regional trail south of Alpine Drive to be reconstructed, replacing existing temporary bituminous pavement sections with permanent bituminous pavement sections, including concrete curb and gutter, storm sewer, and associated appurtenant improvements. Municipal trunk utilities must also be extended. Proposed Improvements On February 10, 2020, the City Council ordered the attached Feasibility Report to explore the necessity, feasibility and cost-effectiveness of the proposed Puma Street improvements, including the scope and estimated costs of the improvements, available funding sources, and whether the improvements should be completed alone or in connection with other improvements. Streets / Trails The north segment of Puma Street is an existing temporary bituminous pavement section, as is the regional trail west of Puma Street. After the temporary sections are removed, permanent bituminous pavement sections will be constructed. The north end of Puma Street is proposed to be realigned as shown in Figure 1 in Appendix A. The permanent street section 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 are developed, submittals will be made to the State Aid office to obtain all required State Aid approvals before awarding a contract for construction. Trunk Watermain Trunk watermain 16-inch CIP) is proposed to be extended to Alpine Drive to allow a portion of the north end of the Riverstone development to be served by water, and to provide a looped watermain system to serve all properties in the immediate area from more than one direction. 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 as part of this project. Trunk Sanitary Sewer Trunk sanitary sewer (10" PVC) is proposed to be extended to Alpine Drive to allow a portion of the north end of the Riverstone development to be served by sanitary sewer, and to allow properties north of Alpine Drive to be served by municipal sewer in the future. 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: As required by State Statute, a notice of the public hearing was published twice in the City's official newspaper, the Anoka Union Herald, on Friday, March 13th, and Friday, March 20th. A copy of this notice is attached. Also as required by State Statute, notices of the public hearing were also mailed to Capstone Homes and Paxmar on March 1 lth, along with the attached cover letter. Observations/Alternatives: