Digital Twin Technology Helps Cincinnati Reduce CSO By 247 Million Gallons, Saving $38M In Capital Work

Like many large cities, the Metropolitan Sewer District of Greater Cincinnati (MSD) operates combined and sanitary sewer systems, some of which were built more than a century ago. Whether by design, or due to infiltration and inflow of stormwater, these systems have a tendency to overflow, discharging untreated sewage into local waterways or flooding streets and basements.

Recognizing the generally inadequate stormwater management capabilities of their existing combined sewer system, MSD prepared a comprehensive wet weather improvement plan with the objective to maximize existing capital assets — such as sewer interceptors, storage and treatment facilities, and pump-stations — to reduce overflows and gain system-wide benefits through advanced control logic that will optimally operate MSD’s urban watershed.