The President signed the Water Infrastructure Improvements for the Nation Act or the “WIIN Act,” on December 16, 2016, which adds a new grant program under FEMA’s National Dam Safety Program (33 U.S.C. 467f). Section 5006 of the Act, Rehabilitation of High Hazard Potential Dams, provides technical, planning, design, and construction assistance in the form of grants for rehabilitation of eligible high hazard potential dams.
High Hazard Potential is a classification standard for any dam whose failure or mis-operation will cause loss of human life and significant property destruction.
Grant Awards
The Rehabilitation of High Hazard Potential Dams Grant (HHPD) awards provide technical, planning, design and construction assistance in the form of grants for rehabilitation of eligible high hazard potential dams. A state or territory with an enacted dam safety program, the State Administrative Agency, or an equivalent state agency, is eligible for the grant.

NDSP Appeals, Extensions, and Amendments Process
This fact sheet outlines the requirements and process for appeals, extensions, and amendments for both National Dam Safety Program grant programs: Rehabilitation of High Hazard Potential Dams and State Assistance.
Download the Fact Sheet

Previous Fiscal Years Grant Awards
All grant award information about the HHPD program, including individual awards for fiscal years 2019-2022 is available on this webpage.
Learn More About the HHPD Grant Program
Explore the details your state, local, tribal and territorial government needs to apply.
Understand what's expected and required of the awardee and FEMA.
Look up definitions for commonly used terms in the grant application and administration process.
Learn about the requirements your dam must meet to receive a grant.
Find guidance for after you have been awarded a grant.
Visit our document library for additional HHPD Grant Resources, including:
- Policy Guidance
- Fact Sheets, Checklists and FAQs
- Cost Share Resources
- PowerPoint Presentations
Have questions? Email the HHPD helpline.
Additional Resources
Mitigation Planning Information
Learn more about Hazard Mitigation Planning and How to Create a Mitigation Plan.
Contact Us
- Questions about the application process: Email the HHPD Helpline.
- Technical issues with non-disaster (ND) grants: Contact the ND Service Desk by email or call 1-800-865-4076.
- Questions about requirements for state, local, and/or tribal mitigation plans: Contact your FEMA regional office.