Facility Planning, Design and Design Services During Construction (DSDC) for Bronx River CSO LTCP

Boomi led the hydraulic modeling, GIS mapping, and CFD modeling efforts to support the design of Bronx River relief sewers and floatables control at HP05.

Project Owner

New York City Department of Environmental Protection (NYC DEP) - Bureau of Engineering Design and Construction (BEDC)

Project Location

New York City

Project Context

New York City has been designing and implementing green and gray infrastructure projects to mitigate the impacts of CSOs and stormwater on confined and open waterbodies. The Bronx River and Westchester Creek long term control plan (LTCP) in the Borough of Bronx include relief sewers to convey additional wet weather flows from the respective drainage areas to the East River through Hunts Point regulators HP05 and HP06.

Boomi led the hydraulic modeling, GIS mapping, and CFD modeling efforts to support the design of Bronx River relief sewers and floatables control at HP05.

Project Challenge

The scale of the existing hydraulic model was not sufficient enough to analyze the sewer system under proposed design conditions. Apart from cost and schedule based primary constraints, continued service during construction, minimal O&M burden on agency staff, and integration of proposed design elements with the existing underground infrastructure were a few additional constraints that the design team worked with.

Our Solution

Based on data collected from CCTV surveys and by digitizing historic as-built drawings, our hydraulic modelers expanded the scale of the hydraulic model and created a robust model in InfoWorks ICM. This enhanced model was then used to perform detailed alternatives analyses during the design and construction phases of the project. We also coordinated and worked closely with other disciplinary teams to provide a holistic, value-focused infrastructure design solution to overcome the project challenges and thereby enabled our client in achieving the objectives set forth for this project.