#14 - I-94 Lift Station and Forecemain Improvements

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include the replacement of the existing 90-inch culvert as it crosses Hudson Boulevard. The failed culvert was discovered last fall as part of the Amira Subdivision Improvements and was then incorporated in the 2025 CIP to be addressed as a City project. During detailed design it was determined that the new forcemain crossing at Hudson Boulevard and the forcemain connection work at the lift station will require open cutting and a full closure of the roadway due to the presence of multiple utility lines. The open cut trench will expose the existing 90-inch large diameter culvert that was originally planned to be rehabilitated through trenchless lining of the pipe. However, due to both the timing and scope of the forcemain improvements, it has been determined that the culvert rehabilitation work can be completed at less cost if removed and replaced with new pipe during the forcemain project rather than lining the pipe before or after. It is also determined that the impacts to the roadway closure of Hudson Boulevard can be minimized by combining the two projects under one contract. Additional Lift Station Upgrades: As part of the forcemain design, the sanitary sewer service area was reviewed and analyzed to address current and future operations, based on the ultimate sanitary sewer service needs provided by the Planning Department. The system was also reviewed with respect to the Met Council sewer improvements currently in construction, to ensure that the lift station operations are capable for meeting Met Council interim and ultimate discharge conditions. Through this review it has been determined that the lift station pumps will need to be replaced, with the new pumps being operational at the time the new forcemain is placed into operation. The pump selection and configuration analysis remains in progress with recommendations to be brought forward for council consideration at a future date. FISCAL IMPACT: The 2025 CIP includes an identified Project Cost Estimate of $900,000 for the I-94 Lift Station Forcemain Improvements to be paid through the sanitary sewer utility fund. Additional Lift Station Upgrades that were not identified in the 2025 CIP will be presented at a future date with the scope of recommended improvements together with estimated costs. The 2025 CIP also includes an identified Project Cost Estimate of $400,000 for the Hudson Boulevard Culvert Improvements to be paid through the storm sewer utility fund. RECOMMENDATION: Staff is recommending that the City Council approve the plans and specifications and order the advertisement for bids for the I-94 Lift Station and Forcemain Improvements, including the replacement of the Hudson Boulevard Culvert. Motion to approve Resolution No. 2025-046, Approving the Plans and Specifications and Ordering the Advertisement for Bids for the I-94 Lift Station and Forcemain Improvements. ATTACHMENTS: 1. Resolution Approving Plans and Specifications and Ordering Advertisement for Bids. 2. Proposed Improvements Map. 3. Project Schedule. 4. Advertisement for Bids. Project Plans and Specifications are available for review at City Hall.