Delta Conveyance Updates

Preventing fish from getting caught up in the water diverted at the intakes - a situation known as “entrainment” - is a high priority and many innovative technologies have been developed to meet the challenge.

California is immersed in a third year of drought, with January, February and March of 2022 experiencing the lowest precipitation on record. Weather whiplash of big storms followed by dry spells makes every drop of rain, every flake of snow, and every water molecule vital this year for families, farms, the environment and the economy.

The upcoming year will mark an important milestone in the proposed Delta Conveyance Project planning process, with the anticipated release of the Draft Environmental Impact Report (EIR) for public review and comment in mid-2022.

The Sacramento-San Joaquin Delta is one of the largest estuaries in North America, providing habitat for around 500 plant and animal species, including about 50 species of fish. Approximately two thirds of California's salmon pass through the Delta on their way upstream to spawn.

Rain and snowfall in California have always been inconsistent and unpredictable. It is our climate’s natural state. The realities of climate change, that take the inconsistent nature of precipitation in California to an extreme, are making water management that much more of a challenge. The proposed Delta Conveyance Project is just one way the stat ...

DWR hosted a series of webinars to provide background information related to preparation of the Draft Environmental Impact Report (EIR) for the proposed Delta Conveyance Project. The first in a series of four webinars was on Operations of the State Water Project (SWP) and Delta conveyance.

As efforts continue to plan and obtain all permits for a single tunnel project to modernize Delta conveyance, the Department of Water Resources’ (DWR) ongoing environmental review process will provide the public an opportunity to review and comment on the proposed project, including the potential environmental impacts and associated mitigation meas ...

The Delta Conveyance Deep Dive video series continues with “Building the Tunnel Part Two”.

As planning and environmental review efforts continue to support DWR's determination of whether a single tunnel option to modernize Delta conveyance should be approved, an important component of the environmental review process is to assess environmental resource impacts within the Sacramento-San Joaquin Delta’s (Delta) estuary.

For the first episode in a special two-part Delta Conveyance Deep Dive series on tunnel construction, we invited two of the Delta Conveyance Project design team's leading consultants on tunnel design and engineering to talk about the state‑of‑the‑art technology that would be used to build the Delta Conveyance Project.