Trinity River Restoration Program

Trinity River Restoration Program Restoring fisheries by restoring the river itself.

California Yerba Santa (Eriodictyon californicum)https://www.trrp.net/plant-spotlight-california-yerba-santa/Yerba Santa...
06/06/2026

California Yerba Santa (Eriodictyon californicum)
https://www.trrp.net/plant-spotlight-california-yerba-santa/

Yerba Santa, the “holy herb” of chaparral and coastal mountains of California. It is a sticky‑leafed shrub with an incredible list of benefits and uses. Its shimmering leaves and trumpet like purple‑white blossoms make it stand out in the landscape, but its true significance lies in the Indigenous teachings that carried its medicinal uses through generations, in its remarkable adaptations to fire‑shaped ecosystems, and in its importance within the ecology of the Trinity watershed. This spotlight invites you to look deeper at a plant that has an incredible story to tell.

Photos: California Yerba Santa on the Weaver Basin Trail System [TRRP/Kiana Abel]

06/04/2026

The Trinity River is getting its salmon season back, and we have the full rundown on what anglers need to know.

Read more 👇

This summer, the TRRP and partners will work on rehabilitating the Sawmill Gravel Processing Area in Lewiston. The desig...
06/04/2026

This summer, the TRRP and partners will work on rehabilitating the Sawmill Gravel Processing Area in Lewiston. The design focuses on enhancing rearing habitat for young salmon as well as rehabilitating an area of mine tailing piles which have been previously sorted for use in sediment augmentation projects.

If you have questions regarding the project please get in touch with us;
by clicking: https://www.trrp.net/phaseii-rehab-sawmill/
by calling: 530-603-1800
by emailing: [email protected]
or by visiting: 1313 South Main Street (Holiday Market Square) in Weaverville

Photo: Aerial image looking upriver showing the Sawmill site before rehabilitation in April of 2026. [TRRP/Elliot Sarnacki

We're raising the flag for alongside the Pacific Salmon Foundation to celebrate habitat restoration of the past and in...
06/01/2026

We're raising the flag for alongside the Pacific Salmon Foundation to celebrate habitat restoration of the past and in advocacy for future projects. We are grateful for our partners and all the work we've been able to accomplish together on our salmon river, the Trinity in California. Cheers to all the restoration warriors out there! Bureau of Reclamation, Bureau of Land Management, U.S. Fish and Wildlife Service, NOAA Fisheries West Coast, California Department of Fish and Wildlife, Yurok Tribe, Hoopa Valley Tribe, Trinity County, The Watershed Research and Training Center, Trinity County RCD, Nor Rel Muk Wintu and so many others....

This past week, the cumulative inflow to Trinty Reservoir quietly passed 1,025,000 acre feet, officially qualifying as a...
05/29/2026

This past week, the cumulative inflow to Trinty Reservoir quietly passed 1,025,000 acre feet, officially qualifying as a "normal" water year, higher than the April B120 "dry" prediction for water year 2026. This update happens each year and does not change management actions, however it is noteworthy for two reasons:

First, this is only the second year since 2001 where actual inflow has fallen into the "normal" water year bin. Apparently "normal" isn't as its name suggests - since 2001 anyway.

Second, this marks the fourth time since 2001 that the April B120 has underpredicted the water year type, while it has only overpredicted the water year type once.

Check out the Water Volume Summary for Trinity River Releases and Diversions Since 2001 here: https://www.trrp.net/restoration/flows/summary/

Link to the Trinity River/Trinity Lake Ensemble Forecast from the California-Nevada Forecast Center: https://www.cnrfc.noaa.gov/ensembleProduct.php?id=CEGC1&prodID=9

Trinity River Community Survey - UC Berkeley School of Environmental Science, Policy and Managementhttps://tinyurl.com/T...
05/28/2026

Trinity River Community Survey - UC Berkeley School of Environmental Science, Policy and Management

https://tinyurl.com/TrinRiv

The Trinity River Community Survey is a watershed-wide study exploring local perspectives on the Trinity River. The survey aims to understand what Trinity County residents value about the river, how river restoration interacts with local communities, and what people hope for the future of the Trinity River and its water.

This research is being conducted and sponsored by the UC Berkeley School of Environmental Science, Policy and Management.

May 27, 6pm – Science on Tap | Trinity County Brewing Company – WeavervilleDon't miss our last Science on Tap of the se...
05/25/2026

May 27, 6pm – Science on Tap | Trinity County Brewing Company – Weaverville

Don't miss our last Science on Tap of the season ... Join Environmental Scientist Justin Garwood (CDFW) for a presentation that explores the delicate wetlands of the Klamath Mountains. Justin's presentation will highlight the effects of trout stocking in the Trinity Alps over the past century, explain how recent surveys inform balanced management of fisheries and vulnerable amphibian populations, and review restoration efforts to benefit native wetland species. We hope to see you there!

Trinity County RCD

Beginning in April, members of the Klamath Fish Health Assessment Team (KFHAT) began monthly meetings. The KFHAT is a te...
05/23/2026

Beginning in April, members of the Klamath Fish Health Assessment Team (KFHAT) began monthly meetings. The KFHAT is a technical workgroup that formed in 2003 with the purpose of providing early warning and a coordinated response effort to avoid, or at least address, a non-hazardous materials related fish kill event in the anadromous portion of the Klamath River basin.

There are a few ways to keep tabs on the KFHAT monthly determinations though the summer...
1. Bookmark the KFHAT webpage: https://kbmp.net/collaboration/kfhat
2. Read our monthly newsletter on our website (May through October editions): https://www.trrp.net/river-riffle-past-editions/
3. Or, sign up to receive our newsletter in your inbox: https://groups.google.com/g/trrp_updates

Screenshot Photo: The KFHAT map presents the readiness level for the Klamath Basin below Iron Gate Dam in a visual format.

The May edition of our newsletter, The River Riffle is posted. https://www.trrp.net/river-riffle-may26/This month we fea...
05/19/2026

The May edition of our newsletter, The River Riffle is posted.

https://www.trrp.net/river-riffle-may26/

This month we feature Trinity River and Trinity Reservoir current conditions, a Program update regarding the Sawmill Gravel Processing Site Channel Rehabilitation Project in Lewiston, a Trinity River Watershed Plant Spotlight featuring California Yerba Santa (Eriodictyon californicum). Plus, upcoming meetings and events and more!

Photo: Aerial image looking downriver at the Oregon Gulch restoration area three years post-restoration. [Yurok Tribe/Aaron Martin]

Address

1313 S. Main Street
Weaverville, CA
96093

Opening Hours

Monday 9am - 4pm
Tuesday 9am - 4pm
Wednesday 9am - 4pm
Thursday 9am - 4pm
Friday 9am - 4pm

Telephone

+15306231800

Website

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