Nigiri Project

Nigiri Project

Home | Key Initiatives | Integrate Wild Fish & Working Landscapes | Nigiri Project

Project Goal:

Scientifically demonstrate that productivity created by shallow inundation of floodplains is foundational to supporting self-sustaining populations of fish and wildlife in the Central Valley.


Metrics: 8,000 acres South and 5,000 acres North of fish-bearing floodplain re-activated for a min. of 4 weeks in nearly all water years.

Learn More

Project Stages

Permitting Phase

Ongoing

Estimated Completion Date:
Nigiri South: 2024 Nigiri North: 2028

Region:

Project Funders

Water Foundation 

Cal Marsh and Farm Knaggs Ranch LLC

Battery Powered (Past)

Resources Legacy Fund (Past)

Fish Affected:

Project Description

Now in its eighth year, this managed floodplain project continues to expand with more than 10,000 acres planned in the Yolo and Sutter Bypasses. Working in partnership with DWR, CDFW, landowners, and the UC Davis Center for Watershed Sciences among many others, the science-based program has demonstrated that productivity created by shallow inundation of floodplains on dormant rice-fields is critical to supporting the food webs on which self-sustaining populations of fish, particularly endangered winter-run Chinook salmon, and wildlife in the Central Valley depend.

The new combination of Nigiri North (Sutter Bypass) and Nigiri South (Yolo Bypass) continues to negotiate permitting regulations for large-scale implementation of floodplain management on working lands of the Central Valley’s flood control infrastructure. In partnership with DWR, CDFW, landowners, and the UC Davis Center for Watershed Sciences among many others, this science-based program has demonstrated that productivity created by shallow inundation of floodplains on dormant rice fields is critical to supporting the food webs on which self-sustaining populations of fish, particularly endangered winter-run Chinook salmon, and wildlife in the Central Valley depend.

A new partnership with Ecological Investment Partners has accelerated the development of an ecosystem impact model that is critical to the permitting process. Additionally, new relationships and land acquisitions in southern Yolo Bypass have increased the footprint of Nigiri South. In order to expedite construction of multi-benefit water infrastructure improvements at the landscape scale, we are planning a public Floodplain Symposium in Fall 2021 to both highlight the last decade of floodplain research and engage panels of ecosystem experts on the potential benefits of permitting and implementing such ecosystem-scale infrastructure changes.

Project Partners:

Cal Marsh and Farm
Knaggs Ranch LLC
UC Davis Center for Watershed Sciences
Department of Water Resources
CA Department of Fish & Wildlife
Golden Gate Salmon Association
Pisces Foundation
California Water Foundation

More Initiative Projects