We write to urge you to promptly review the U.S. Army Corps of Engineer's Chief's Report on the flood risk management for the Mamaroneck and Sheldrake River Basins in the Village of Mamaroneck, New York. As you know, it has been recommended to authorize a plan to reduce flood risk through the construction of retaining walls and a diversion culvert, the deepening, and widening of river channels, structure elevation, and the removal/replacement of 2 vehicular bridges that constrict flood flow. The recommended plan is estimated to reduce average annual damages by approximately 87% and will help reduce the risk of loss of life. It is our hope that once the report has been reviewed, you will promptly sign and recommend the plan to reduce flood damage in the Village of Mamaroneck for Congress to authorize and fund the project.
In April 2007, a Nor'easter storm produced the flood of record for the Village of Mamaroneck, equivalent to the one percent flood event. The 2007 event caused over $50 million in damages and impacted over 50 percent of total structures within the study area. A one percent flood event, the storm's resulted in floodwaters peaking on the Mamaroneck River in approximately four hours and in approximately six hours on the Sheldrake River. As such, the evacuation time for approximately 19,000 residents in the Village of Mamaroneck was severely restricted and created a high risk to life safety. Over forty percent of residents required evacuation assistance prior to floodwaters peaking including a large population of children that attend a school located within the area of the most severe flooding. However, this was not the only flood event in the basin. Two deaths have occurred as a result of flooding in the project area in the last 25 years, most recently in 2007.
We urge you to ensure the Chief's Report on the flood risk management for the Mamaroneck and Sheldrake River Basins is promptly reviewed and signed so the project may move to the phase where Congress can act to authorize and fund this project. As you know, a final Chief's Report must be approved in order for this project to move forward. A swift review of this project will help ensure continued commitment to the life safety of the residents of the Village of Mamaroneck, New York. Should you have any additional questions, please do not hesitate to contact our offices.