Grant opportunity
National Culvert Removal, Replacement, and Restoration (Culvert Aquatic Organism Passage)
The purpose of the Culvert AOP Competitive Grant Program is to provide funding to eligible entities for the replacement, removal, and repair of culverts or weirs that meaningfully improve or restore fish passage for anadromous fish. Anadromous fish are born in freshwater and spend most of their lives in saltwater, returning to freshwater to spawn. Salmon are a well-known example of anadromous fish.
- Funder
- DOT Federal Highway Administration / Department of Transportation
- Closes 2026-07-16
- Closes 2026-07-16: Jul 16, 2026
- Award
- up to USD 800,000,000; floor 0; 50 expected awards
- Applicant
- Organizations and Institutions
- Discipline
- Environment and Natural Resources
- Region
- United States
- Posted
- Jun 2, 2026
Call summary
Overview
The purpose of the Culvert AOP Competitive Grant Program is to provide funding to eligible entities for the replacement, removal, and repair of culverts or weirs that meaningfully improve or restore fish passage for anadromous fish. Anadromous fish are born in freshwater and spend most of their lives in saltwater, returning to freshwater to spawn. Salmon are a well-known example of anadromous fish.
Who can apply
Eligible applicants under the Culvert AOP Competitive Grant Program are: States Units of local government Indian Tribes Projects eligible for funding are projects for the replacement, removal, or repair of culverts or weirs that: (1) would meaningfully improve or restore fish passage for anadromous fish; and (2) with respect to weirs, may include (A) infrastructure to facilitate fish passage around or over the weir; and (B) weir improvements (49 United States Code (U.S.C.) § 6703(b)).
What it supports
- Environment and Natural Resources
- United States
- Official opportunity number: FHWA-CAOP-23-001.
Funding and duration
- up to USD 800,000,000; floor 0; 50 expected awards
Closes 2026-07-16
Closes 2026-07-16: Jul 16, 2026
How to apply
Use the official Grants.gov listing for application package, forms, attachments, and agency-specific instructions. Submit by 2026-07-16 unless the agency updates the official listing.
Call details
Source-based overview
The purpose of the Culvert AOP Competitive Grant Program is to provide funding to eligible entities for the replacement, removal, and repair of culverts or weirs that meaningfully improve or restore fish passage for anadromous fish. Anadromous fish are born in freshwater and spend most of their lives in saltwater, returning to freshwater to spawn. Salmon are a well-known example of anadromous fish. Eligibility: Eligible applicants under the Culvert AOP Competitive Grant Program are: States Units of local government Indian Tribes Projects eligible for funding are projects for the replacement, removal, or repair of culverts or weirs that: (1) would meaningfully improve or restore fish passage for anadromous fish; and (2) with respect to weirs, may include (A) infrastructure to facilitate fish passage around or over the weir; and (B) weir improvements (49 United States Code (U.S.C.) § 6703(b)). Opportunity number: FHWA-CAOP-23-001. Closing date: 2026-07-16. Funding: up to USD 800,000,000; floor 0; 50 expected awards.
Eligibility
Eligible applicants under the Culvert AOP Competitive Grant Program are: States Units of local government Indian Tribes Projects eligible for funding are projects for the replacement, removal, or repair of culverts or weirs that: (1) would meaningfully improve or restore fish passage for anadromous fish; and (2) with respect to weirs, may include (A) infrastructure to facilitate fish passage around or over the weir; and (B) weir improvements (49 United States Code (U.S.C.) § 6703(b)).
Funding and benefits
up to USD 800,000,000; floor 0; 50 expected awards
Themes and supported activities
Environment and Natural Resources
United States
Official opportunity number: FHWA-CAOP-23-001.
Deadline and timeline
Closes 2026-07-16: Closes 2026-07-16: Jul 16, 2026.
Applicants should confirm the exact deadline time, time zone, required documents, portal steps and any institutional approvals on the official call page before submitting.
How to apply
Use the official Grants.gov listing for application package, forms, attachments, and agency-specific instructions. Submit by 2026-07-16 unless the agency updates the official listing.
Before applying, check eligibility rules, budgets, attachments, page limits, partner requirements, cost-share conditions and whether the opportunity uses an expression of interest, full proposal, registration or nomination stage.