Interior Department Invests $100 Million in First Dam Safety Project Through President Biden’s Bipartisan Infrastructure Law

California’s B.F. Sisk Dam is the nation’s largest offstream reservoir

Last edited 03/23/2022

Date: Tuesday, March 22, 2022


WASHINGTON — The Department of the Interior announced today that the Bureau of Reclamation is providing project-specific funding of $100 million for the modification of B.F. Sisk Dam in California. The funding, authorized by President Biden’s Bipartisan Infrastructure Law, was highlighted in an addendum to the Bureau’s initial spend plan for fiscal year 2022 funding allocations.

The Bipartisan Infrastructure Law provides $500 million to Reclamation over the next five years to support critical dam safety projects, streamline construction management, maintain the operational capacity of Reclamation’s dams and minimize risk to the downstream public. These investments underscore President Biden’s commitment to developing longer-term measures to respond to climate change, mitigate drought and build climate resiliency.

“Investing in and enhancing dam safety is central to the Biden-Harris administration's all-of-government approach to addressing drought and confronting climate change impacts on communities and habitats,” said Secretary Deb Haaland. “Crucial funding from President Biden’s Bipartisan Infrastructure Law will further advance planned dam safety work at B.F. Sisk to reduce risk while preserving all the benefits that the dam and San Luis Reservoir currently provide. This is the first of many projects that will benefit from these historic infrastructure investments.”

B.F. Sisk Dam, completed in 1967, impounds San Luis Reservoir, the nation’s largest offstream reservoir, and provides supplemental irrigation water storage and municipal and industrial water for the Central Valley Project and California’s State Water Project. In December 2019, Reclamation and the California Department of Water Resources announced a partnership to move forward on a $1.1 billion seismic upgrade with the signing of a Record of Decision and Notice of Determination.

The dam safety project, Reclamation’s largest project under the 1978 Safety of Dams Act, will add stability berms and other dam safety features to the existing 3.5-mile-long earthen dam. Increasing the dam height will reduce downstream public safety concerns by reducing the likelihood of overtopping if slumping were to occur during a seismic event. Exploratory blasting at B.F. Sisk occurred during 2020 in preparation for construction on the multi-year project to begin summer 2022.

“The Biden-Harris administration is focused on developing long-term resilience to drought and climate change,” said Assistant Secretary for Water and Science Tanya Trujillo. “This investment in B.F. Sisk Dam, located south of the Sacramento-San Joaquin Delta, will build water supply security for California communities, farmers and ranchers and wildlife refuges, and help the system better adapt to a changing climate.”

Construction is divided into three phases with a new contract for each phase. The award of the Phase I contract award is scheduled for FY 2022, using both Bipartisan Infrastructure Law Safety of Dams funding, as well as that provided in Reclamation’s annual appropriations.

Detailed information on the programs and funding provided in the Bipartisan Infrastructure Law, the Fiscal Year 2022 BIL Spend Plan, and materials from stakeholder listening sessions are available at Reclamation’s infrastructure webpage. Information about the modification of B.F. Sisk Dam is available at Reclamation’s B.F. Sisk webpage.


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