1,000+ Opportunities
Find the right grant
Search federal, foundation, and corporate grants with AI — or browse by agency, topic, and state.
This listing may be outdated. Verify details at the official source before applying.
Find similar grantsNational Culvert Removal, Replacement, and Restoration Grant Program (Culvert Aquatic Organism Passage (AOP) Program) is sponsored by Federal Highway Administration (FHWA). This competitive grant program provides funding for projects that replace, remove, and repair culverts or weirs that meaningfully improve or restore fish passage for anadromous fish.
Get a weekly digest of new grants like this
A free weekly digest of new foundation and federal funding opportunities as they're added to Granted. Unsubscribe anytime.
Or search similar grants →Extracted from the official opportunity page/RFP to help you evaluate fit faster.
Federal Highway Administration U.S. Department of Transportation Federal Highway Administration 1200 New Jersey Avenue, SE Aquatic Organism Passage (AOP) On June 2, 2026, FHWA announced the availability of up to $800M for FY2023 through FY2026 Culvert AOP grants as part of the FY23-26 Culvert AOP NOFO. The deadline to apply for FY23 through FY26 funding via Grants. gov is Thursday, July 16, 2026, at 11:59 p.
m. , EDT. Where transportation systems such as roads and tracks intersect waterways, a result may create barriers that impede the passage and impair the habitat of aquatic organisms and other wildlife.
The Federal Highway Administration (FHWA), an agency within the U.S. Department of Transportation (USDOT), promotes approaches to reduce or remove barriers to passage of both aquatic and wildlife species where they interact with our Nation’s transportation system. The FHWA also recognizes that removing these barriers may have flood risk reduction, environmental, cultural, and societal benefits.
Aquatic organism populations may be critical to local economies and Native and Tribal communities. The FHWA is working to advance the state of water crossing design practice for aquatic organism passage (AOP). Through these advances, the FHWA seeks to encourage practices that minimize negative effects on fish and other aquatic organism populations while creating safer and more resilient structures.
The three links below provide some background (“ What is AOP ”), information on AOP Grants (“ Grants ”) and a variety of resources related to both aquatic organism passage and related topics (“ Resources ”). Click on any of the icons to proceed to a specific topic.
According to the current listing, eligibility includes: Eligible applicants include state, local, and Tribal governments. Projects must replace, remove, or repair culverts or weirs that would meaningfully improve or restore fish passage for anadromous fish. Confirm the full requirements in the official notice before applying.
The current listing shows up to $800,000,000 (for FY2023 through FY2026 funding). Verify award ceilings, matching requirements, and allowable costs in the official notice.
The published deadline was July 16, 2026, which has passed. Check the official notice for any future application windows before investing time in a proposal.
National Culvert Removal, Replacement, and Restoration Grant Program (Culvert Aquatic Organism Passage (AOP) Program) is funded by Federal Highway Administration (FHWA). Verify program details on the funder's official page before applying.
Start from the official opportunity page linked in this listing — it carries the sponsor's submission instructions.
After pulling the program from grants.gov in February 2025, FHWA reopened PROTECT with FY2024, FY2025 and FY2026 funds merged — $787 million, a 25 percent rural set-aside, a cost-share ladder you cannot climb in six weeks, and a new priority for converting bike and bus lanes back to general traffic.
Read articleThe Department of Transportation's FY26 SBIR Phase I solicitation opened June 3 and closes July 7 — a 34-day window across FHWA, FRA, FTA, NHTSA, and PHMSA topics ranging from AI trip planning to thermochromic hazmat coatings to high-voltage battery discharge for rail. Awards land in September. The strategy for which topic to chase depends on infrastructure most teams underestimate.
Read articlePlanning applications close June 15; Bridge Project applications close June 29. Approximately $3.0 billion remains across the FY25–26 envelopes of a $9.62B four-year program — but the IIJA's September 30 authorization expiration converts this cycle into the last reliable BIP application window before a contested reauthorization fight.
Read article