The engineering projects on Onondaga Creek, along with the construction of the Onondaga Dam in 1950, have aided to flood control within the city. These interventions were designed to rapidly convey combined sewage and stormwater flows, both helping to reduce major flood occurrences and their impacts. The efforts have historically been successful in mitigating flood risks and enhancing infrastructure safety.
The City of Syracuse is focused on reducing Onondaga Creek flood risks to residents, homes and businesses. In 2023, the City began working with C&S Companies to prepare a hydraulic study to analyze the potential for a reduction of the SFHA by utilizing existing open space along the Creek for added high flow storage. The City's largest remaining open space tract of land adjacent to Onondaga Creek is Arsenal Park, which is located at the southern city limits on the west side of the creek. As part of the initial study, public engagement will include two public meetings to discuss the project and findings. The first public meeting was held on August 7th 2023.(See resources for presentation) The second public meeting is planned for the beginning of 2024. All interested persons are welcome and encouraged to attend to hear more about this potential project.