May 2025 Update: The Recommended Plan involves the removal and replacement of the existing U.S. Route 1 bridges over the Byram River in Port Chester NY and Greenwich, CT for the purposes of flood risk management. The existing bridges constrict the flow of the Byram River during storm events, thereby increasing the water surface elevation upstream of the bridges and inducing flooding. As part of the bridge removal/replacement, the existing central piers will be removed, and the new bridge decks will be elevated to alleviate the constriction. The new bridges will support the same traffic volume and maintain similar flow pattern as the existing bridges. The project will manage flood risk up to the 50-yr storm event (2% Annual Exceedance Probability).
The project is authorized for construction in Section 401 WRDA 2020 and was included in the Disaster Relief Supplemental Appropriation Act (DRSAA) 2022 for $5,470,000 for Pre-construction Engineering & Design (PED) phase and $35,000,000 for construction phase.
PED was initiated in April 2023 through the execution of a Design Agreement between the USACE and the Town of Greenwich. The design effort is 100% Federally funded using the DRSAA ’22 funds. A design contract was awarded to an Architect & Engineering firm, AECOM, in November 2024. The field investigations and analyses to inform the design have been ongoing. A public information meeting was held in the Town of Greenwich on April 22, 2025. An additional public meeting to be held in Port Chester, NY in the near future.
General questions regarding the Byram River Flood Risk Management Study can be directed to:
Ms. Rifat Salim
Project Manager
PH: 917-790-8215.
Rifat.Salim@usace.army.mil
Questions or comments regarding the project can also be submitted via email to: Byram.river@usace.army.mil
A public meeting was held in Town of Greenwich, CT on 22 April 2025. The presentation and responses to questions asked during the April 22nd public information meeting are located below.
- Byram River Public Meeting Presentation
For general information please read the Byram River Basin Fact Sheet.