2018.02.05 CC Packet - Laserfiche WebLink

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4. PROPOSED IMPROVEMENTS 4.1 Roadway Three roadway design options were considered for this report. The first two options proposed for the project area include the reclamation of the existing asphalt pavement and aggregate base with only minor subgrade corrections as needed with the roadway remaining a rural section. The base roadway option considered for Oneka Lake Boulevard and Harrow Avenue was the existing 24 - foot width. With this option, the roadway would be reclaimed and paved at the same width as the existing roadway, with only minor improvements to the existing shoulder to meet State Aid Standards. The layout of the roadway would include two 11 -foot driving lanes and two 1 -foot -wide paved shoulders, with a rural typical section. This option minimizes both cost and construction impacts to the adjacent properties. However, it does not provide any extra shoulder space for bikers or pedestrians. The second roadway option considered, Alternate 1, was the widening of the existing rural section from a 24 -foot width to a 26 -foot width. The layout of the roadway would include two 11 -foot driving lanes and two 2 -foot -wide paved shoulders, with a rural typical section. This option provides a somewhat wider and safer route for pedestrians or bicyclists. However, the option would be more expensive than replacing in kind, and would require minor grading work on the adjoining ditches. Typical roadway sections are included in Figure 2 in Appendix A. 4.2 Drainage Improvements The existing drainage systems will be maintained and culverts replaced as needed with only minor drainage improvements to accommodate the proposed roadway alignment. Existing vertical and horizontal alignments will be maintained to the greatest extent possible. 4.3 Utility Improvements The existing watermain and sanitary sewer systems within Goodview Avenue and Green Avenue have potential for connection at Oneka Lake Boulevard to serve the remaining parcels within the MUSA. The new watermain and sanitary sewer utilities are proposed to connect at Green Avenue and extend 800 feet to the east to provide service to the adjoining properties. Sanitary sewer and watermain are also identified to extend across Oneka Lake Boulevard at Goodview Avenue to service a portion of the property on the south side of Oneka Lake Boulevard. The installation of the City utilities is contingent on the wants of the benefiting properties. Proposed utility improvements can be found in Figure 3 in Appendix A. 4.4 Right-of-Way/Easements The proposed improvements will be completed within the existing right-of-way or areas where the City has prescriptive rights and no acquisitions are proposed at this time. 4.5 Permits/Approvals The anticipated permits and approvals required and the respective regulatory agencies are listed below: ■ City of Hugo ....................................... ■ MN Pollution Control Agency NPDES Feasibility Report Oneka Lake Boulevard and Harrow Avenue Street Improvement Project City of Hugo, MN WSB Project No. R-010893-000 RCWD Permit/Wetlands ...... Erosion/Stormwater Page 4