US Army Corps of Engineers
Philadelphia District & Marine Design Center

Delaware River Basin Comprehensive NY, NJ, DE & PA (Watershed Flood Management Plan)

Watershed Flood Management Plan

Published Nov. 27, 2012
An effective flood warning and response system is necessary to prepare for flood events, and to reduce property damage and the loss of life. This photo shows first floor flooding of residential structures in New Hope, Penn. in 2006.

An effective flood warning and response system is necessary to prepare for flood events, and to reduce property damage and the loss of life. This photo shows first floor flooding of residential structures in New Hope, Penn. in 2006.

CONGRESSIONAL DISTRICTS: Numerous throughout DE, NJ, PA and NY

APPROPRIATION / PHASE: General Investigations / Feasibility

BUSINESS PROGRAM: Watershed Planning

AUTHORITY: United States Senate Committee on Environmental and Public Works, Delaware River and its Tributaries, New Jersey, New York and Pennsylvania

LOCATION: The Delaware River Basin is located in 28 counties in portions of New York, New Jersey, Delaware and Pennsylvania and drains an approximate area of 13,539 square miles.

DESCRIPTION: This study is authorized by the July 20, 2005 resolution by the United States Senate Committee on Environment and Public Works, Delaware River and its Tributaries, New Jersey, New York and Pennsylvania.  

Historical flooding in the study area has resulted in property damage and loss of life.  No one measure will eliminate flooding along the Delaware River; rather a combination of measures is necessary to prepare for and recover from future flood events. An interim feasibility study under the Delaware River Basin Comprehensive, NY, NJ, DE, & PA (Watershed Flood Management Plan) focused on flood modeling and related areas.  Specific tasks included development of flood analysis models for the Delaware River, Schuylkill River, and Brandywine River.  The study also included the development of flood inundation maps for selected locations within the Delaware River Basin.  This product included a user’s guide (Delaware River Flood Warning and Response System), which provides short-term technical advice and assistance to local emergency management officials.  The study also evaluated the impacts of increased flood storage in the Upstate New York reservoirs for a series of known flood events.

PROJECT GOALS:  The purpose of this project is focused on flood modeling and related areas. Specific tasks include development of flood analysis models for the Delaware River, Schuylkill River and Brandywine River. It also includes the development of flood inundation maps for specific area along the Delaware River Basin.  

STATUS:  Study completed through modeling and flood plain mapping products provided to the DRBC; ongoing salinity modeling support will be conducted with DRBC through the PAS program.

SPONSOR: The Delaware River Basin Commission is the non-Federal sponsor for this project.

DATE OF PROJECT AGREEMENT: May 17 2007