Strengthening American Infrastructure (SAI)

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Important Information for Proposers

A revised version of the NSF Proposal & Award Policies & Procedures Guide (PAPPG) (NSF 22-1), is effective for proposals submitted, or due, on or after October 4, 2021. Please be advised that, depending on the specified due date, the guidelines contained in NSF 22-1 may apply to proposals submitted in response to this funding opportunity.


Strengthening American Infrastructure (SAI) is an NSF Program seeking to stimulate human-centered fundamental and potentially transformative research aimed at strengthening America’s infrastructure. Effective infrastructure provides a strong foundation for socioeconomic vitality and broad quality of life improvement. Strong, reliable, and effective infrastructure spurs private-sector innovation, grows the economy, creates jobs, makes public-sector service provision more efficient, strengthens communities, promotes equal opportunity, protects the natural environment, enhances national security, and fuels American leadership. Achieving these objectives requires the integration of expertise from across all science and engineering disciplines. SAI focuses on how fundamental knowledge about human reasoning and decision-making, governance, and social and cultural processes enables the building and maintenance of effective infrastructure that improves lives and society and builds on advances in technology and engineering. Successful projects will represent a convergence of expertise in one or more SBE sciences deeply integrated with other disciplines to support substantial and potentially pathbreaking, fundamental research applied to strengthening a specific and focal infrastructure.




General inquiries regarding this funding opportunity should be sent to

Program contacts

Steven Breckler
Program Director, SBE (703) 292-7369
Sara Kiesler
SBE (703) 292-8643 SBE/SES
Jeremy Koster
SBE (703) 292-8740 SBE/BCS
Kristin E. Kuyuk
SBE (703) 292-4904 SBE/BCS
Joseph M. Whitmeyer
SBE (703) 292-7808 SBE/SES
Darleen L. Fisher
CISE (703) 292-8950 CISE/CNS
Michael Ford
EHR (703) 292-5153 EHR/DRL
Gianluca Cusatis
ENG (703) 292-5026 ENG/CMMI
David A. Sutherland
GEO (703) 292-8030 GEO/OPP
Robert Meulenberg
MPS (703) 292-7106 MPS/DMR
Randy L. Phelps
OIA (703) 292-8040 OD/OIA
Amanda A. Simcox
BIO (703) 292-8470 BIO/DBI

Awards made through this program

Browse projects funded by this program
Map of recent awards made through this program