Norwalk River Flood Control System

NRCS Rehabilitation Project 

Department of Energy and Environmental Protection partners with the Natural Resource Conservation Service (NRCS) to maintain seven flood control systems in the state of Connecticut.  The Norwalk River Watershed consists of two flood control dams including the Norwalk River Watershed Dam No. 2, also known as Great Swamp Dam, located in Ridgefield.  An assessment by NRCS of the Norwalk River Flood Control System revealed that Great Swamp Dam does not meet their current design criteria and standard and therefore, a rehabilitation plan is being developed.

Picture of Norwalk River Watershed


Picture of overview of Norwalk River Dam Site 2

Norwalk River Site 2- Draft Watershed Rehabilitation Plan EA

Public Meeting February 27, 2020

Second Public Meeting Notification

Technical Contractor Presentation

Public Meeting April 19, 2018:

NRCS Presentation

DEEP Presentation

Technical Contractor Presentation

Q & A

Please email DEEP staff at  with any questions.




Content last updated June 2021