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Feasibility Report 2022 Oneka Parkway Improvement Project City of Hugo, MN WSB Project No. 018888-000 Page 4 4. PROPOSED IMPROVEMENTS 4.1 Surface Oneka Parkway surface improvements are proposed between CSAH 8 and Heritage Parkway. Mill and overlay are proposed from CSAH 8 to the south limits of the new 147th Street intersection pavement. Mill and overlay will resume at the north limits of the 147th Street intersection improvements and end at the south leg of the intersection with Farnham Avenue. A partial reconstruction is proposed on Oneka Parkway from the south leg of the Farnham Avenue intersection (the north limits of the mill and overlay) to the intersection with Heritage Parkway. The proposed improvements include the removal and replacement of portions of concrete curb and gutter along the full length of the project extents as condition warrants. The boring locations and logs, included in Appendix D, show adequate class 5 and subgrade sections already in place through the reconstruction segment. The basic geometry of the roadway is not proposed to be significantly changed in any portion of the project, either horizontally or vertically. The typical section for both segments of the roadway are included in Appendix A and match the existing parkway section. Existing storm and sanitary castings are proposed to be adjusted and replaced, with no other utility changes. Existing pedestrian crossings are proposed to be removed and rebuilt to current ADA standards at each intersection that is disturbed by this project. 4.2 Storm Sewer The existing storm structure castings will be removed and replaced to match the new roadway elevations. In addition, the storm structures that have heaved will be evaluated in final design to determine if any additional actions are needed during construction to reduce future issues. 4.3 Oneka Parkway and CSAH 8 Intersection A new northbound right-turn lane is proposed on Oneka Parkway. This construction will necessitate reconstruction of adjacent multi-use trail and relocation of two storm sewer catch basin manholes. Washington County has agreed to allow construction of a full traffic signal at the intersection to occur with the 2022 street project to avoid future impacts to traffic and pavement. The signal is currently identified in the County’s CIP for 2024. 4.4 Permits/Approvals The anticipated permits and approvals required, and the respective regulatory agencies are listed below. City of Hugo ......................................................................Drainage/Erosion Control Permit MPCA NPDES/SDS ..............................................................................Erosion/Stormwater 4.5 Construction Access/Staging The contractor will be responsible for providing access to all existing properties throughout the project. The proposed methods of construction are the responsibility of the contractor. Adequately signed detours will be identified to direct traffic around the construction zone and notify users of the increased truck and construction activity. Detours will be used only if absolutely necessary to ensure the safety of residents and construction workers alike.