Draft Report September 2022

Comments received regarding the Draft Integrated FR/EIS will assist in the agency’s evaluation of the proposed action and will be reflected in the project record. All written comments, including contact information, will be made a part of the administrative record, available to the public under the Freedom of Information Act (FOIA). The Administrative Record, or portions thereof, may also be posted on a Corps of Engineers’ Internet website.

The NYNJHAT Study StoryMap is an interactive platform with interactive web-based content, including interactive maps, animations, renderings, and summaries.

Readers Guide 

Draft Integrated Feasibility Report and Tier 1 Environmental Impact Statement

Appendix A: Environmental

Appendix B: Engineering

Annex D: Map Sets

New Annex F4: Map Sets

Appendix C: Cost Engineering

Appendix D: Economics

Appendix F: Real Estate

Appendix G: Public and Agency Coordination

Appendix H: Stakeholder List 

Section 508 compliance notice: Please contact the study team if you are having issues accessing the files.

The public is invited to submit comments by March 31, 2023:

Mr. Bryce W. Wisemiller, Project Manager
U.S. Army Corps of Engineers New York District, 
Programs & Projects Management, Planning Division 
Jacob K. Javits Federal Building, Room 17-401
c/o PSC Mail Center
26 Federal Plaza
New York, New York 10278


Ms. Cheryl R. Alkemeyer, NEPA Lead
U.S. Army Corps of Engineers, New York District, 
Programs & Projects Management, Planning Division 
Jacob K. Javits Federal Building, Room 17-420
c/o PSC Mail Center
26 Federal Plaza
New York, New York 10278


Projected Coastal Flood Increases: 2018 to 2118

NY & NJ Harbor & Tributaries Focus Area Feasibility Study (HATS)

Coastal storms have severely impacted the North Atlantic Coast of the United States, including the New York-New Jersey Harbor region.  In response to these storms, the US Army Corps of Engineers (Corps) is investigating measures to manage future flood risk in ways that support the long-term resilience and sustainability of the coastal ecosystem and surrounding communities, and reduce the economic costs and risks associated with flood and storm events.  In support of this goal, the Corps completed the North Atlantic Coast Comprehensive Study, which identified nine high-risk, focus areas on the north Atlantic Coast for further in-depth analysis into potential coastal storm risk management measures.  One of the nine areas identified was the New York-New Jersey Harbor and Tributaries study area.

January 2024 Update

The formal public comment period for the New York-New Jersey Harbor and Tributaries Study Draft Integrated Feasibility and Tier 1 Environmental Impact Statement that was released in September 2022 officially closed on March 31, 2023. However, if you have comments on the Draft Report or have information that you think may be relevant or helpful to the study, please feel free to provide this information to the study team via the mailing and email addresses shown on this website. We always welcome comments and feedback!

The New York District, along with our non-federal study partners and higher authority offices, are continuing to evaluate the comments that were received during the public review period.  Given the large number of comments and the currently allocated and approved funding and schedule for completing the study, the Corps are considering various courses of action for moving the study forward to completion, particularly given that the currently approved study schedule has it completing in June 2024, which is not possible as previously planned. 

Consequently, the next milestone level meeting within the Corps and the study’s non-federal partners, which was previously scheduled for 2023, is delayed until early 2024.  If successful, this milestone meeting will layout the steps for advancing and completing the study, which may require considerable additional funding and time.  Once this milestone level meeting occurs, we anticipate announcing to the public our broad plans for continuing and completing the feasibility study shortly after that milestone meeting, and subject to higher authority approval. 

There is a considerable amount of work left to be done on the study. 

An additional aspect to future work on the study also relates to a recent request by the States of New York and New Jersey to discuss further flood risk evaluations that may be done as part of the study and as authorized in Section 8106 of the Water Resources Development Act of 2022.

In the meantime, thank you for your interest and, if you provided comments or attended any of the public meetings or briefings that have occurred on the study since the Draft Report was released at the end of September 2022, thank you for your time and effort to help us improve the plan we are seeking to develop to address coastal storm risk for this highly complex, urbanized and vibrant area, both now and into the future.  

Public Meeting Presentation

January 2023 HATS Presentation

September 2022 Update

The New York and New Jersey Harbor and Tributaries (NYNJHAT) coastal storm risk management feasibility study resumed work in fiscal year 2022 in earnest (following substantial curtailment during 2020-2021 due to lack of federal funding).  The non-federal sponsors for the study are the New Jersey Department of Environmental Protection and the New York State Department of Environmental Conservation in partnership also with the New York State Department of State and New York City, represented by the Mayor’s Office of Climate and Environmental Justice.

A Notice of Intent for preparing the NYNJHAT study Tier 1 Environmental Impact Statement (EIS) was released on August 22, 2022.  The Draft Integrated Feasibility Report and Tier 1 EIS (Draft Report) was released in late September and is available, along with the various appendices at the links on the left side of this website).   The formal Notice of Availability for the Tier 1 EIS will be released shortly, formally initiating the public review associated with the National Environmental Policy Act.  Given the complexity of the NYNJHAT study, the vast and populated study area, and the goal of U.S. Army Corps of Engineers (USACE) and our non-federal partners to have maximum public engagement and input to the NYNJHAT study, the public comment period will be extended to March 31, 2023.

USACE, in concert with the non-federal partners, is planning a series of public meetings on the Draft Report as part of a broader public outreach effort.  Virtual (online) meetings will be scheduled on the Draft Report in October followed by in-person meetings in November and December at several locations to be chosen across the vast NYNJHAT study area.  Some of these meetings (or excerpts) will be recorded and made available online at this website for those that may wish to see the presentations virtually.  In addition, when requested and feasible, USACE will seek to present to existing public meetings (e.g., community boards or other organizations) during this public review period.  Please check this website and social media accounts to see the list of upcoming public meeting locations, dates and times where the NYNJHAT study Draft Report will be presented.

The public is invited to submit comments (via email noted below, or via mail) on the NYNJHAT study Draft Report between now and March 31, 2023, when the comment period will close.

There is a considerable amount of work to be done in the remaining phases of the NYNJHAT study and details to be determined.  That work will be focused and informed based on the feedback that USACE receives on the Draft Report from our non-federal partners, other agencies, stakeholder groups, and the public.  This will lead to development of the Final Feasibility Report and Tier 1 EIS which will then be used to develop the study’s final product, the Chief of Engineer’s Report, which is currently approved to be released by June 15, 2024. 

USACE hopes that the description and details of the Tentatively Selected Plan that is contained in the Draft Report and the rationale for its tentative selection will serve as a good framework for further plan refinements leading to ultimately a broadly supportable, engineeringly feasible, economically justified, and environmentally acceptable plan for addressing coastal storm risk for this highly urbanized and nationally important study area.  Given the uncertainties associated with future climate change (including sea level rise) along with other complexities, the final recommended plan will likely have components that are layered in application, phased in implementation, and able to be adapted over time.  Regardless of what USACE ultimately recommends as a result of this study, the involved federal, state and local elected officials, based largely on the views and comments raised by the public, will decide what to authorize and fund to address the substantial coastal storm flood risks that still remain in the NYNJHAT study area now and as exacerbated into the future by further sea level rise.

The public is invited to submit comments by mail to:

NYNJHAT Study Team, Planning Division
U.S. Army Corps of Engineers
26 Federal Plaza, 17th Floor
New York, NY 10278-0090

or by e-mail to: NYNJHarbor.TribStudy@usace.army.mil

Please include the project title and the commenter's contact information with submitted comments. Comments are always welcome and will be considered in the study as it continues.

Potential Impact of Anticipated Sea Level Change on Coastal Areas by 2100

Potential effects of anticipated sea level change to coastal communities by 2100 (at a non-specific location)

Prior NY/NJ HATS Study Reports and Presentations

About the North Atlantic Coast Comprehensive Study

Map of the Study Area

The U.S. Army Corps of Engineers recently completed a report detailing the results of a two-year study to address coastal storm and flood risk to vulnerable populations, property, ecosystems, and infrastructure affected by Hurricane Sandy in the United States' North Atlantic region.

This, the North Atlantic Coast Comprehensive Study, is designed to help local communities better understand changing flood risks associated with climate change and to provide tools to help those communities better prepare for future flood risks. It builds on lessons learned from Hurricane Sandy and attempts to bring to bear the latest scientific information available for state, local, and tribal planners.

The conclusions of the study, as detailed in the final report, include several findings, outcomes, and opportunities, such as the use of a nine-step Coastal Storm Risk Management Framework that can be customized for any coastal watershed. 


Map of study area