Culvert Aquatic Organism Passage Program
Federal Highway Administration
Total Grant Value:
Up to $784 million available FY2023–2026.
Individual Grant Award Maximum:
Varies by project.
About the Grant:
The Culvert AOP Program funds removal, repair, or modification of culverts/weirs to restore fish passage (anadromous) under IIJA. Eligible applicants include tribes, states, and local governments. Projects must improve connectivity to upstream habitat. LA County may be eligible if projects affect eligible fish habitat. Multi-year competitive program, consult FHWA NOFO for deadlines.
Key Dates, Deadlines, and Events:
NOFOs released annually: FY23(applications closed 09/23/2024), FY24(close 08/25/2025); FY25/26 follow similar schedule.
Submission Due Date:
Ongoing
Funds Allocated to LA County Locations
No specifically specified LAC funding.






