Closed · 25-534 · CFDA 47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.083 · Discretionary

Strengthening American Infrastructure

Federal grant opportunity posted by U.S. National Science Foundation, cataloged on Grants.gov.

$50K-$750K
Award range
Closed
Status
-
Close date
-
Expected awards

The verdict

Strengthening American Infrastructure is a closed discretionary listing from U.S. National Science Foundation that offered $50,000 -- $750,000. Future funding cycles may be published under the same CFDA number. PlainGrants indexes 1,338 other opportunities from U.S. National Science Foundation.

$50K-$750K
award range
Closed
application status
47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.083
CFDA program
1,338
other opportunities from U.S. National Science Foundation

Archived opportunity record

Strengthening American Infrastructure is closed. Check the agency catalog for replacement NOFOs. U.S. National Science Foundation still indexes 1,338 other opportunities here.

According to Grants.gov (extract vintage 2026-08-10), this record reflects the officially published listing. See methodology.

Deadline tracker

Application window closed

This listing is no longer accepting applications

Posted Jun 6 Closed

Est. Total Funding

$9,600,000

Instrument

Grant

Description

Strengthening American Infrastructure (SAI) is an NSF program seeking to stimulate human-centered, use-inspired, fundamental and potentially transformative research aimed at strengthening America’s infrastructure. Effective infrastructure provides a strong foundation for socioeconomic vitality and broad improvement in quality of life. Robust, 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 social, behavioral or economic sciences, deeply integrated with other disciplines to support substantial and potentially pathbreaking fundamental research applied to strengthening a specific focal infrastructure. General inquiries regarding this funding opportunity should be sent toNSF-SAI@nsf.gov.

Catch-all / unrestricted eligibility mark · 25-534

Grants.gov marks Strengthening American Infrastructure with a catch-all / unrestricted eligibility code (Others (see official listing text)). Read the official announcement text for the real applicant filter — the code alone is not a door list. The extract does not mark applicant cost-sharing as required. Instrument: Grant. Funding-activity code maps to Science and Technology / R&D (ST). This eligibility-code string dominates the U.S. National Science Foundation book (722 peers, 54% of 1,339).

Code 25
Others (see official listing text)

Codes are Grants.gov eligibility category values from the extract vintage 2026-08-10. Confirm the full eligibility statement on the official listing or the Grants.gov eligibility reference.

Official Listing on Grants.gov

View full details, application forms, and submission instructions.

View on Grants.gov

Agency Contact

NSF grants.gov support grantsgovsupport@nsf.gov

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What to do next

Strengthening American Infrastructure is closed; use the parent program and agency catalog for the next funding cycle.

  • Browse open federal opportunities in the same category when this listing is closed. Open opportunities
  • Look up CFDA 47.041;47.049;47.050;47.070;47.074;47.075;47.076;47.083 across all indexed listings before you commit to this opportunity alone. Eligibility finder
  • Compare award ranges across federal categories before you pick a single CFDA. All categories

Opportunity deadlines and eligibility change on Grants.gov; PlainGrants mirrors the extract and is not the submission system.

Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from the SAM.gov Assistance Listings and Grants.gov. See our methodology for details. Retrieved and formatted by PlainGrants