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Design of the Old Mill Road Lift Station and Force MainCopyrighted November 15, 2021 City of Dubuque Consent Items # 17. City Council Meeting ITEM TITLE: Design of the Old Mill Road Lift Station and Force Main SUMMARY: City Manager recommending City Council authorization to release a Request for Proposals for the Design of the Old Mill Road Lift Station and Force Main. SUGGESTED Suggested Disposition: Receive and File; Approve DISPOSITION: ATTACHMENTS: Description Type Old Mill Road Lift Station and Force Mains-MVM City Manager Memo Memo Updated Memo for Old Mill Road Lift Station RFP Staff Memo THE C DUjIBQTE Masterpiece on the Mississippi TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: Design of the Old Mill Road Lift Station and Force Mains DATE: November 12, 2021 Dubuque WAWca 914 ii 2007-2012.2013 2017*2019 City Engineer Gus Psihoyos recommends City Council authorization to release a Request for Proposals for the Design of the Old Mill Road Lift Station and Force Main. I concur with the recommendation and respectfully request Mayor and City Council approval. v Mic ael C. Van Milligen MCVM:jh Attachment cc: Crenna Brumwell, City Attorney Cori Burbach, Assistant City Manager Gus Psihoyos, City Engineer THE C DUUB-..'*-TE Masterpiece on the Mississippi TO: Michael C. Van Milligen, City Manager FROM: Gus Psihoyos, City Engineer DATE: November 12, 2021 SUBJECT: Design of the Old Mill Road Lift Station and Force Mains. Dubuque All -America City II I., 2012 INTRODUCTION The purpose of this memo is to request authorization to release a request for proposals (RFP) for the Design of the Old Mill Road Lift Station and Force Main. BACKGROUND Over 60 years ago the City of Dubuque started to invest in sanitary sewer infrastructure to protect the health of its citizens and to serve the growth that had occurred and was occurring along its western City limits. The Catfish Creek Interceptor Sewer (CCIS) was constructed in 1956, which allowed the City to extend sanitary sewers to property owners within the sewer shed. The Catfish Creek Pump Station (CCPS) and Water Pollution Control Plant, now referred to as Water Recourse Recovery Center (WRRC), were constructed in the late 1960's. Since the late 1960's, the community has grown and expanded to the west. All branches of the Catfish Creek interceptor sewer system have had multiple extensions since they were first constructed in the late 1950's and early 1960's. The catfish Creek interceptor and the branch interceptor sewers are capable of conveying the average dry weather flow with the flow depth remaining at or below 75% of the pipe diameter. Peak flows do exceed the maximum design depth of 75% of the pipe diameter. During wet weather events, surcharging of the pipes does occur. The surcharging of the system is reflected in the sewer modeling reports. The City of Dubuque submitted a facility plan to Iowa Department of Natural Resources (IDNR), in May of this year (2021), for the construction of a 20 MGD sanitary sewer lift station and 30" dual force mans. The facility plan is based on the results of an intensive evaluation of the existing interceptor collection and pumping systems that transport sewage to the Water Resource Recovery Center (WRRC). Several options were considered and the City chose to proceed with the design and construction of the Old Mill Road Lift Station and Force Main Project, recommended option. DISCUSSION The selected consultant will be expected to complete the contracted scope of work within a specified timeframe, under the general direction and coordination of the City's Engineering department, as authorized by the City Council. The goal is to complete the engineering design and initiate the public bidding process for construction of the improvements by June 6, 2022. The proposed schedule for the improvement projects is as follows: RFP Issued: Proposals Due: Selection Committee Review Recommendation to City Manager Award Design Contract: Initiation of Public Bidding: Bids Due: Award Construction Contract: Project Completion November 17, 2021 December 2, 2021 December 3, 2021 thru December 10, 2021 December 14, 2021 December 20, 2021 July 5, 2022 August 4, 2022 August 15, 2022 March 31, 2024 The following staff members will review the proposals and formulate a recommendation: 1. Todd Irwin, Engineering Technician 2. William O'brien, Water & Resource Recovery Center Manager 3. Deron Muehring, Civil Engineer 4. Steve Sampson Brown, Project Manager 5. Christopher Lester, Water Department Manager RECOMMENDATION I recommend releasing a RFP, for the design of the Old Mill Road Lift Station and Force Main, to the public. BUDGETIMPACT The engineering design will be funded through a Fiscal Year 2022 appropriation in the amount of $1,200,000.00 in ARPA funding [CIP#1001050] for engineering costs associated with the Catfish Creek Lift Stations Force Main Project. Staff is also evaluating the use of IDNR State Revolving Fund (SRF) to fund a portion or all of the design, in lieu of the Fiscal Year 2022 appropriation of $1,200,000.00 in ARPA funding. ACTION TO BE TAKEN I respectfully request authorization to release, to the public, the attached RFP for the Design of the Old Mill Road Lift Station and Force Main. Attachments Prepared by Todd Irwin, Engineering Technician cc: Jenny Larson, Budget Director Gus Psihoyos, City Engineer William O'brien, Water & Resource Recovery Center Manager Deron Muehring, Civil Engineer Steve Sampson Brown, Project Manager Christopher Lester, Water Department Manager 2 Todd Irwin, Engineering Technician