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Program Overview

Program Mission

The Program Managment Team's job is to save money for City ratepayers and do what is best for the community as we meet the objectives and requirements of the Clean Water Act.

Program Goals

The City is working to ensure that the CSO Program goals (Control Projects) outlined in the Long Term Control Plan are constructed and operational by October 2027, in accordance with the Consent Order between the City and the Nebraska Department of Environmental Quality. Specific CSO Program goals are:

Goal 1: Regulatory Compliance

Meet specific regulatory requirements as identified by the Environmental Protection Agency and Nebraska Department of Environmental Quality.

  • Complete implementation of CSO solutions within schedule identified.
  • Reduce pollutant discharge to the Missouri River and Papillion Creek.

Goal 2: Economic Affordability

Minimize cost impact to ratepayers by completing CSO solutions within or under budget.

Goal 3: Community Acceptance

Maintain continuous public dialogue, provide information and pursue opportunities for multiple benefits in CSO projects.

[ Click to enlarge ]
[ Click to enlarge ]

Types of CSO Solutions

As defined by the Long Term Control Plan, the Program includes a variety of solutions which include the following types of control projects.

Targeted Sewer Separation (East of 72nd Street)

Existing single-pipe combined sewer systems will be separated in targeted areas of the city to carry stormwater and sanitary sewage in separate pipes. New sewers will be installed to convey either the sanitary sewage or stormwater, and existing pipes will be used to carry the other flow.

Deep Tunnel

This includes a 5.4-mile tunnel along the Missouri River from combined sewer outfalls located north of Cuming Street to the Missouri River Wastewater Treatment Plant (located south of the Hwy 275 bridge). The tunnel will be approximately 170 feet below the surface, approximately 15 feet in diameter and will convey combined sewage to a new high-rate treatment plant adjacent to the current Missouri River Wastewater Treatment Plant. The tunnel will store the combined runoff until it can be treated and discharged to the Missouri River.

High-Rate Treatment Facilities

High-rate treatment facilities will be built at the Missouri River Wastewater Treatment Plant and near 64th and Dupont Streets to treat potential overflows before they reach the Missouri River and Papillion Creek. These facilities (Saddle Creek RTB) are designed to treat overflows during wet weather events when the combined sewer system’s capacity is inadequate. Between rain events the facilities will be emptied and cleaned.

Missouri River Watershed Improvements

Missouri River Wastewater Treatment Plant Improvements – This project includes upgrades to the existing plant to maximize treatment of wet weather flows.

South Interceptor Force Main – Replacement of the existing force main to provide reliable conveyance of wastewater and combined sewage to the Missouri River Wastewater Treatment Plant.

South Omaha Industrial Area Force Main & Gravity Sewer and South Omaha Industrial Area Lift Station (completed) – These projects ensure that the high-strength wastewater will be treated at the Missouri River Wastewater Treatment Plant during wet weather events.  The projects also reduce odors in the existing combined sewer system.

Storage Tank

Below-ground storage tanks will be built near Benson Park and southwest of the North Omaha Power Plant (along Pershing Drive).  These will capture overflows during rain events when the combined sewer system’s normal capacity is inadequate. Between rain events the facilities will be emptied and cleaned. Additionally, a storage tank will be built at the MRWWTP and the City’s Joint Use Facility near 22nd and Y Streets.

Major Projects by Phase

Phase 1
Phase 2
Phase 3
Phase 4
  • Deep Tunnel and Drop Shafts
  • Deep Tunnel Lift Station & Force Main
  • Conveyance to Tunnel Drop Shafts
  • Missouri River Wastewater Treatment Plant Retention Treatment Basin
  • CSO 204 – 63rd St & Ames Storage Tank
  • Minne Luse Ave Storage Facility – Phase 2
  • Jones St to Leavenworth Diversion Structure

Sewer Separation by Phase*

Phase 1
Phase 2
Phase 3
Phase 4
Phase 5A
Phase 5B
  • Cole Creek CSO 203 Sewer Separation
  • Cole Creek CSO 204 Sewer Separation Phase 5
  • Cole Creek CSO 204 Sewer Separation Phase 6
  • 42nd St & Q St Sewer Separation
  • CSO 212 Sewer Separation
  • CSO 210 Interceptor Improvements
  • Cole Creek CSO 204 Sewer Separation Phase 7
  • Cole Creek CSO 202 Sewer Separation Phase 2
  • CSO 210 Sewer Separation
  • Cole Creek CSO 204 Sewer Separation Phase 8
  • CSO 211 Interceptor Improvements
Phase 6
  • 23rd St & Seward St Sewer Separation
  • 46th St & Grand St Sewer Separation
  • 30th St & Burdette St Sewer Separation
  • South Barrel Diversion
  • 43rd St & Boyd St Sewer Separation
  • South Barrel Conversion
  • 41st St & Sprague St NW Sewer Separation Phase 2
Phase 7
  • Cole Creek Diversions
*Additional City sewer separation projects also underway.

System Reliability Projects

Projects