Mill Creek WWTP High-Rate Treatment Pump Station



Project Overview

This Progressive Design-Build project will design and construct a new 700 MGD pump station at the Mill Creek Wastewater Treatment Plant (WWTP) in the Cincinnati neighborhood of Lower Price Hill/Queensgate. The pump station will be connected to both a new diversion structure and to the existing treatment plant and a future wet weather facility. This is the second step of construction necessary to construct the future wet weather facility.


The project will include the following major features:


  • A screening facility with bar screens
  • A pump station with twin, trench‐style, self‐cleaning wet wells with a firm capacity of 700 MGD
  • Odor control system at the headworks
  • Tie‐ins to existing force mains to the WWTP and connection point for future pipeline to HRT facility
  • Means of splitting and measuring flow to the existing WWTP and the future HRT
  • Stone trap to protect the screens, if necessary
  • Structural repairs and modifications to the existing diversion structure through which the EBORI and WBORI will continue to flow, if necessary
  • Demolition of existing North and South pump stations and existing buildings north of the North pump station
  • Document Storage Building to replace document storage in buildings to be demolished
  • Site improvements, electrical system improvements, I&C improvements, and other supporting systems
  • Integration with remaining facilities at the Mill Creek WWTP
  • Cut‐ins of Mill Creek Interceptor (MCI) and Auxiliary Mill Creek Interceptor (AMCI) within recently constructed Connector Boxes to divert flow to recently constructed Diversion Chamber and new pump station
  • Disinfection system upgrades and outfall improvements to meet regulatory requirements

Project Status

  • In June 2023, MSD awarded this progressive design-build project to Ulliman Schutte Construction.
  • Design kicked off in July 2023; 30% design is expected to be completed in June 2024.
  • Construction is anticipated to start in 2025 and run through 2029, with numerous subcontractor packages to be bid in late 2024 and/or early 2025.
MSD service area showing Mill Creek plant