Water Storage Enhancement
Active
- Assistance listing
- 15.574
- Agency
-
Bureau of Reclamation
Department of the Interior
- Grant awards
- 11 $65,721,506 in federal obligations
Program facts
- Assistance types
-
- Cooperative Agreement
- Project Grant
- Treasury account
-
- 14-0680-0-1-301
- More information
Program details come from SAM.gov Assistance Listings. Updated . Grant award figures come from USAspending.gov.
About this program
The Department of the Interior Bureau of Reclamation funds planning, design, and construction of federally owned or state-led water storage projects under the Water Storage Enhancement program (CFDA 15.574), with the most recent grant award issued on December 1, 2025. Funding is available only for projects that the Secretary of the Interior determined to be feasible before January 1, 2021, and only for projects specifically named in Congressional appropriations legislation—this is not an open competitive solicitation. Continuation of funding across fiscal years depends on Congressional discretion and annual appropriations.
The program funds a range of water infrastructure activities spanning feasibility studies, environmental compliance and permitting, preliminary and detailed design, geotechnical investigations, operations modeling, real estate acquisition support, and construction phases. Recent awards span major reservoir projects (Sites Reservoir in California), canal rehabilitation (Delta Mendota Canal subsidence correction), tribal domestic water infrastructure (Yurok Tribe water delivery system), water banking systems (Folsom Reservoir region), and multi-benefit storage facilities (Upper Yakima System). Program activities are designed to improve water supply reliability, support drought resilience, enhance ecosystem function, facilitate fish and wildlife habitat protection, and reduce flood risk.
Over the past seven years, the program distributed 11 awards totaling $65.7 million in federal obligations, with an additional $63.7 million in non-federal cost-share bringing total obligated value to $129.4 million. All funding has flowed through the Bureau of Reclamation. Award frequency has been variable—two awards in 2019, three in 2021, one in 2022, three in 2023, and two in 2025. Cooperative Agreements comprise 91 percent of awards (10 of 11), with one Project Grant representing the remainder. Representative awards include the Sites Reservoir Authority Cooperative Agreement for $30 million (awarded September 2023) supporting engineering design and environmental permitting for California's proposed off-stream storage facility; a $20.4 million award (May 2023) for Del Puerto Canyon Reservoir feasibility and design work to support wildlife refuge water supplies and flood management; and the Yurok Tribe Project Grant of $3.97 million (September 2025) for planning and design of tribal domestic water infrastructure on the Upriver Yurok Reservation. No recent grant opportunities are currently posted; applicants must work directly with Bureau of Reclamation to identify feasibility-determined projects eligible for future Congressional appropriation.
Objective and description
- Objective
Section 4007 of Public Law 114-322, also known as The Water Infrastructure Improvements for the Nation (WIIN) Act allows the Secretary of the Interior to negotiate and enter into an agreement on behalf of the United States for the design, study and c
- Description
Section 4007 of Public Law 114-322, also known as The Water Infrastructure Improvements for the Nation (WIIN) Act allows the Secretary of the Interior to negotiate and enter into an agreement on behalf of the United States for the design, study and construction or expansion of federally owned or State-led water storage project. To be eligible for funding, the Secretary of the Interior must have determined the project to be feasible before January 1, 2021.
Eligibility
- Applicant eligibility
Any State, department, agency, or subdivision of a State, or any public agency organized pursuant to State law.
- Beneficiary eligibility
Water users, including municipal, industrial, agricultural, and environmental that benefit from the additional water storage.
- Uses of assistance
The WIIN Act Section 4007(b) allows the Secretary to participate in federally owned storage projects in a Reclamation State to which the United States holds title and that was authorized to be constructed, operated and maintained pursuant to reclamation laws. The WIIN Act Section 4007(c) allows the Secretary to participate in State-led water storage projects that are constructed, operated, and maintained by a State agency or agency organized pursuant to State law and provide a benefit in meeting any obligation under Federal law, including regulations.
- Length and time phasing of assistance
Reclamation will proceed with expenditure of construction funding once a project has been found feasible and a cost sharing agreement has been signed with a non-Federal partner for a construction project. Multi-year projects may be considered if justified and annual accomplishments can be demonstrated. Method of awarding/releasing assistance: Payment terms vary by agreement awarded under this program.
How to apply
- Application procedure
Funding is Congressionally allocated to specific projects that have met the requirements of Section 4007 of P.L. 114-322.
- Criteria for selecting proposals
Reclamation is only able to fund projects that are named in appropriations legislation. To be eligible for funding, the Secretary of the Interior must have determined the project to be feasible before January 1, 2021.
- Award procedure
Maximum funding amount is dependent upon the approved allocation of appropriations from Congress.
- Time to approval or disapproval
Varies depending on the type and complexity of the project or activity.
- Renewals
Continuation of funding from one fiscal year to the next is at the discretion of Congress.
Grant awards
Latest 10 of 11 listed here. See the rest on GovTribe.
Top recipients by federal obligations
| Rank | Recipient | Federal obligations | Share |
|---|---|---|---|
| 1 | Sites Project Authority | $43,454,922 | 66% |
| 2 | Contra Costa Water District | $7,189,818 | 11% |
| 3 | Del Puerto Water District | $6,700,000 | 10% |
| 4 | Yurok Tribe | $3,968,300 | 6% |
| 5 | San Luis & Delta-Mendota Water Authority | $2,100,000 | 3% |
| 6 | Kittitas Reclamation District | $1,600,000 | 2% |
| 7 | Regional Water Authority | $708,466 | 1% |
Federal obligations by fiscal year
| Fiscal year | Federal obligations |
|---|---|
| FY2026 | $708,466 |
| FY2025 | $3,968,300 |
| FY2024 | $2,300,000 |
| FY2023 | $32,800,000 |
| FY2022 | $19,244,740 |
| FY2021 | $3,700,000 |
| FY2020 | $3,000,000 |
Quick answers
What is Assistance Listing 15.574?
Assistance Listing 15.574 is Water Storage Enhancement, a federal grant program run by Bureau of Reclamation (Department of the Interior).
What is the CFDA number for Water Storage Enhancement?
Its CFDA number is 15.574: Assistance Listing numbers were called CFDA numbers before 2018.
How much funding has Assistance Listing 15.574 awarded?
11 grant awards under 15.574 have obligated $65,721,506 in federal funds to 7 recipients.
Who receives the most funding from 15.574?
The recipients obligated the most under Water Storage Enhancement are Sites Project Authority ($43,454,922), Contra Costa Water District ($7,189,818) and Del Puerto Water District ($6,700,000).
How much did 15.574 obligate in fiscal year 2025?
Grants under 15.574 obligated $3,968,300 in federal funds in fiscal year 2025.
On GovTribe
See this program's full record
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