This report summarizes the findings of the a series of convenings, hosted by the Ash Center for Democratic Governance and Innovation at Harvard University John F. Kennedy School of Government, in which “a broad range of experts and stakeholders, including representatives of the federal government (both the executive and legislative branches), state and local governments, and key infrastructure users” gathered to discuss: “the need for innovative finance and delivery approaches to modernize and expand federally sponsored water resource infrastructure in support of economic growth, water security, and public safety for the United States; the role that alternative finance and delivery modalities, such as P3s, can play in the development of federally sponsored water resource infrastructure; and potential strategies and solutions that can be pursued to overcome existing constraints that currently preclude federal agencies from using these alternative/innovative mechanisms for water resource infrastructure.”