The Metropolitan Sewer District of Greater Cincinnati (MSD) provides wastewater collection and treatment for residents and corporations in Hamilton County, Ohio. MSD was formed in 1968 and continues to be responsible for the management and operation of the sewer district as well as manage the regulations and improvement programs for the city.
As part of a federally mandated water quality project along the Kings Run Stream and Mill Creek, the MSD identified a need for expansion along Winton Road. The Kings Run watershed is about 1,000 acres in size and includes portions of the Cincinnati neighborhoods of College Hill, Spring Grove Village and Winton Hills. The watershed was named after the Kings Run stream, which used to flow into the Mill Creek.
The MSD proposed a new combined sewer overflow (CSO) system to be installed in the area to handle the increased population in the area and allow for the restoration project of the associated bodies of water. Originally, a concrete vault was included in the early phases of design and scoping. Contech Engineered Solutions worked with the project engineer to identify an alternative solution that was more cost-effective yet allowed for the deep installation and flexible configuration that was required within the site design.
The CSO project began in 2017 and was completed in 2019. The goals were to reduce combined sewer overflows that would discharge into the two water bodies, restore Kings Run as a tributary to Mill Creek and improve water quality in both streams. It was estimated that the overall project would eliminate 98 million gallons of overflow in Mill Creek each year.
The Kings Run Improvement Project was divided into 5 phases of constructing new stormwater detention basins, new storm and sanitary sewers, relocation of combined sewers, and a 0.67-million-gallon underground storage system (Phase B - designated CSO 217).