Agenda - Public Works Committee - 01/18/2022

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Segments D-1, D-2, D-3 and D-4 include trails, sidewalks and miscellaneous street scape improvements along Sunwood Drive. The Segments, and associated costs, are presented in the following table. Segment Location Estimated Cost D-1 Center Street to Sapphire Street $ 113,000 D-2 Xenolith Street to Center Street $ 176,000 D-3 Yolite Street to xenolith Street $ 198,000 D-4 Zeolite Street to Yolite Street $ 204,000 Total $ 691,000 The above costs are considered project costs and include 30% contingencies and project development costs. Project development costs include administrative, engineering, and fiscal related costs. Summary of Costs The total for the roadway, trail, sidewalk, street lighting, lateral sanitary sewer, storm sewer and water main improvements is estimated at $12,445,000. The total trunk related improvements for sanitary sewer and storm sewer is estimated at $285,000. The total landscaping improvements along Sunwood Drive from Zeolite Street to Sapphire Lane is estimated at $691,000. General Cost Estimating Assumptions • Dewatering will be required for sewer and water installation. • Fill will be required for all roadways. • Borrow material cost does not assume use of regional pond excavation. • Aggregate base cost does not assume use of City stockpile. • Costs associated with creating the bioretention basin are included in the roadway portions of Ramsey Parkway (Segments A-1, A-2, A-3, and A-4). Segment A-1 Assumptions • Removal of existing 42-inch storm sewer included in trunk storm sewer cost. • Sanitary sewer is assumed to extend to midpoint of last parcels serviced by sewer line. • Roadway costs include tapering the roadway from a 47 ft wide median to a 20 ft wide median. • Includes an allotment for (2) 6 ft wide sidewalks along the roadway boulevard areas. • Costs for the median include restoration and plantings. Segment A-3 Assumptions • The trunk 18-inch sanitary sewer was assumed to remain in place, outside the future Ramsey Parkway alignment. o If the trunk sanitary sewer main needs to be relocated to provide buildable area in the northwest quadrant of the Ramsey Parkway and Zeolite Street intersection, the relocation is estimated to cost $141,000. • 8-inch sanitary sewer is assumed to extend to midpoint of last parcels serviced by sewer line. Prepared by: Bolton & Menk, Inc. The COR Analysis f R16.114924 COST ANALYSIS Page 15