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Restoring streamflows for fish, farms and communities
About the Coalition
The California Salmon & Steelhead Coalition is a partnership among three organizations — Trout Unlimited, California Trout and The Nature Conservancy — that are working together to increase streamflows in California’s North and Central Coast watersheds, with the goal of restoring streamflows to benefit salmon and steelhead habitat while improving water supply reliability for people.
Butte Creek © The Nature Conservancy


Restoring streamflows for fish, farms and communities
Chinook, Upper Blue Creek © The Nature ConservancyOf the many factors that have led to the decline of Northern and Central California’s formerly abundant populations of salmon and steelhead, one of the most vexing is lack of sufficient streamflow.
Many streams that once provided cold, clear water for spawning and rearing fish are now severely dewatered particularly during the region’s long summer dry season and in times of drought.
Big River View © The Conservation FundLow streamflows are caused by people taking too much water from streams at the wrong times. Solutions are hard to come by, because proposed fixes reckon with the complex set of laws that govern the diversion and use of water — as well as an equally complex body of streamflow science.
Because few organizations have had the expertise or resources to take on these challenges, the problem has gone largely unaddressed.
© The Nature ConservancyTHE CHALLENGE
Low Flows Despite a Wealth of Water
The North Coast is actually blessed with a natural abundance of water: Most streams provide far more flow over the course of the year to meet the needs of both fish and people.
The problem is one of timing: Most of this flow comes during the winter wet season, when rainfall is highest and human water need is lowest.
The seasonal imbalance of supply and demand causes streams to dry up in the late summer and early fall, killing young fish and forcing people to ration water.
OUR SOLUTIONS
The Coalition focuses on helping people to change their practices to take advantage of the natural abundance of water in the North and Central Coast regions.
Casting call at the Capitol © California TroutAdapting water law and policy to enable new solutions
Westminster Woods storage and forbearance © Trout UnlimitedCollaborative Water Management
Creating models for collaborative water management that meet the needs of fish and people
© Kevin ArnoldScience provides the foundation for all of the Coalition’s work to improve North and Central Coast streamflows. It supports our policy strategies by defining the problems to be solved, providing a basis for proposed solutions and promoting productive partnerships with agency staff.

2021 was one of the driest years on record in California and 2022 is shaping up to be even worse. Our rivers — the source of life for fish, wildlife, and people — are running dry.
Projects
We Implement
On-the-Ground Projects
We carry out the above strategies through a series of on-the-ground projects located in high-priority North and Central Coast watersheds.
Our projects allow us to field test our solutions and enhance flows in streams that are key to salmon and steelhead recovery in the region.
Shasta River Safe Harbor Agreement and Collaborative Flow Management Strategy
Shasta River © Val Atkinson
Potter Valley Project
Scott Dam © California Trout
Mill Creek Project
Mill Creek © The Nature Conservancy
Westminster Woods Storage and Forbearance
Westminster Woods project © Trout Unlimited
Lower Pescadero/San Gregorio Agricultural Pond Projects
Moty pond © Trout Unlimited
Little Shasta Flow Enhancement and California Environmental Flows Framework, Hart Ranch
Hart Ranch © California Trout
Development of South Fork Eel River Flow Objectives
Eel River © Mike Wier, California Trout
Navarro and Mill Creek Groundwater Study
Navarro River © The Nature Conservancy
Porter Creek Flow Enhancement and Ecological Study
Confluence of Porter Creek and the Russian River; disconnected in spring 2015 (left) and connected to allow for full smolt passage into the river in spring 2017 (right) © The Nature Conservancy
Pescadero Modified Percent of Flow Case Study
Pescadero Creek © Trout Unlimited
Shasta and Scott Valley Sustainable Groundwater Management Planning
Shasta Valley © California Trout
Husch Vineyards Project
Retention pond at Husch Winery © The Nature Conservancy
Camp Meeker Flow Release
Camp Meeker flow release © Trout Unlimited
Portola Redwoods State Park Storage and Forbearance Project
Portola downstream © Trout Unlimited

