The main sanitary sewage collection system for the City of Sheffield Lake consists of an interceptor sewer located along Lake Road supplemented by three pump stations. To meet OEPA requirements, the city needed to upgrade the pump stations and eliminate sanitary overflows to Lake Erie.
Pump Stations No. 2 and 3 provided several design challenges. Lakefront property values along Lake Road are high. Pump Station No. 2 is located within an existing easement in front of a residential property. Pump Station No. 3 is located within Shell Cove Park. The cost and space limitations imposed by the location of the pump stations eliminated the possibility of completely replacing the facilities. KS Associates resolved these issues by converting the existing wet well/dry well stations into submersible pump stations.
A major concern at both pump stations was the lack of standby power. The desired solution was the installation of a back-up generator. Due to the space limitations, a generator could not be placed within the structures. The valuable residential property surrounding the stations required an aesthetically pleasing exterior. KS Associates addressed this issue by renovating the existing structures with a new roof, brick fascia and courtyard. In addition to hiding the generator, the courtyard provided a mounting surface for the pump controls, removing them from the corrosive atmosphere within the building.
To meet the city’s sewage pumping capacity needs and provide backup capacity in accordance with OEPA regulations, the capacity of each station was increased. The Sanitary Sewer Master Plan for the City of Sheffield Lake, prepared by KS Associates in July 1992, was used as the basis for the capacity upgrades. Utilizing the flow meter data from the report, the capacity of Station No. 3 was increased from 800 gpm to 2,800 gpm and the capacity of station No. 2 was increased from 1,200 gpm to 3,500 gpm.
Construction cost for this project was $718,600. The innovative solutions used in the design of this project saved the City of Sheffield Lake an estimated $84,000.