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

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4. CONSIDERED IMPROVEMENTS 4.1 Project Area As noted earlier, Capstone Homes plans to start developing the north half of the Riverstone residential development in the spring of 2020. To support this proposed development west of Puma Street, as well as another proposed residential development east of Puma Street, approximately 1,050 feet of Puma Street and an adjacent regional trail south of Alpine Drive must be reconstructed to replace 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. AppendixA includes exhibits outlining the location and scope of these improvements. 4.2 Pavement Improvements The northerly 1,050 feet or so 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. 4.3 Utility Improvements 4.3.a Watermain Trunk watermain (16" DIP) 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. 4.3.b 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. Feasibility Report Puma Street Improvements City of Ramsey Project No. 20-04 5