Pittsburgh Water and the City of Pittsburgh have begun construction on a $6.8 million stormwater improvement project designed to reduce flood risks and improve drainage in the Carrick and Overbrook neighborhoods.

The Stewart Avenue Stormwater Improvement Project will install a new storm sewer system, catch basins and manholes along Stewart Avenue and nearby streets. The infrastructure will capture runoff that currently flows overland across streets and toward homes during heavy rainfall.

The project also includes a green infrastructure facility near Stewart Avenue and Horning Street that will temporarily store stormwater and release it gradually into the stormwater system. The approach is intended to reduce peak flows and lessen pressure on Saw Mill Run, the receiving waterway for runoff from the project area.

In addition to stormwater improvements, the City of Pittsburgh Department of Mobility and Infrastructure will complete roadway improvements, including new curbs and pavement. Pittsburgh Water will fund the storm sewer and green infrastructure work while the city will fund roadway improvements, with other shared costs divided between the two organizations.

Construction along Stewart Avenue from Saw Mill Run Boulevard to Parkdale Street, as well as portions of Parkdale Street, Esther Street, Horning Street and Carol Circle, is expected to continue through September 2027.