Trinity River Restoration Program

05/13/2026

Good news for Klamath Basin anglers. CDFW has announced that Chinook Fishing will reopen on Klamath, Trinity and Sacramento Rivers after 3-year Closure ...

Following three consecutive years of closure, salmon fishing will return to the Klamath River Basin and Sacramento River for the upcoming summer and fall seasons.

05/04/2026

Last week we had the opportunity to share some of our recent work with restoration professionals from across California and beyond. Here Aaron Martin from the Yurok Tribal Fisheries Program describes the scale of effort that it took to build the Oregon Gulch Channel Rehabilitation Project. Thank you to the Salmonid Restoration Federation for another incredible conference!

05/02/2026

Meet the Common Merganser — a migratory bird whose excellent predation skills and extended presence might reveal secrets about how Trinity River flow management influences the delicate balance between a predator and prey. These winter and spring visitors thrive in areas shaped by previous slow-water winter management, and their appetite for salmon fry has sparked new research into how river conditions affect this dynamic. Click to read on: https://www.trrp.net/animal-spotlight-common-merganser/

Photo: A male Common Merganser [US Fish and Wildlife Service]

04/30/2026

Dams disrupt the natural movement of water, sediment and wood downstream. The blockage results in a lack of loose, well-sorted sediment and structural complexity that salmon and steelhead need to successfully spawn, protect their eggs, and rear once hatched. This spring the TRRP augmented sediment and wood at the BLM River Access on Steel Bridge Road to make up for the loss of these materials. Click to read about the overall project here: https://www.trrp.net/swa-steelbridge/

Photo 1: Aerial image of the augmentation area post completion in Apr. 2026. [Elliot Sarnacki, TRRP]
Photo 2: A variety of sediment sizes placed and ready for transport into the Trinity River. [James Lee, TRRP]
Photo 3: Harvested trees placed to help create habitat. [Elliot Sarnacki, TRRP]
Photo 4: Aerial imagery during implementation. [Elliot Sarnacki, TRRP]
Photo 5: Aerial imagery of the Steel Bridge augmentation site, just prior to completion on April 7, 2026. [Elliot Sarnacki, TRRP]
Photo 6: Harvested trees placed to help create habitat. [James Lee, TRRP]

04/28/2026

The Spring Quarter meeting of the Trinity Management Council brought together agency and tribal leaders to review Program updates on staffing, financial systems, and rehabilitation projects to emerging science initiatives, hatchery modernization, watershed restoration, and key decisions on flows, research, and fish‑passage infrastructure, the session highlighted both the progress achieved and the important work ahead.

Click the link to read the summary: https://www.trrp.net/tmc-mar26/

04/24/2026

Join us for an Earth Day 2026 event sponsored by the Lewiston Community Association at the Lewiston Community Park and Gym on Friday, April 24. The event will host informational booths, snack vendors, contests, crafts and a 7:30pm showing of The Lorax. We look forward to sharing information about riparian plants and restoration initiatives within the Lewiston area - we hope to see you there!

04/21/2026

This Wednesday April 22 at 6pm, Science on Tap welcomes research geologist, Andy Calvert, Ph.D. of the USGS for an exploration of volcanic processes in the Western United States, focusing on the tectonic and eruptive history of the Mt. Shasta and Medicine Lake region. This presentation will outline how geologic mapping, argon geochronology, and volcanic stratigraphy reveal over a million years of magmatic evolution and hazard potential within the Cascade Arc. You won't want to miss this special presentation at the Trinity County Brewing Company!

04/20/2026

Check out our newsletter - The River Riffle, April Edition!
https://www.trrp.net/river-riffle-apr26/

Click the link to read about;
\Current Conditions: B120 Water Year Determination is “Dry”, download the Spring Flow Notice
\Program Updates: Sediment and Wood Augmentation – Steel Bridge Habitat Enhancement Project
\Featured Article: In case you missed it: Spring Quarterly TMC Meeting Recap
\Trinity River Watershed Animal Spotlight: The Common Merganser (Mergus merganser)
\Upcoming Meetings and Events like Science on Tap and so much more!

04/15/2026

Our annual wildflower scavenger hunt is underway! See below for details...

Looking for a fun way to get outside this month?

Lace up your hiking shoes and join the Spring Wildflower Scavenger Hunt, running now through May 15. Explore the beauty of Trinity County and see how many native wildflowers you can find. Identify at least 10 different species to receive a free packet of 20 milkweed seeds, which support migrating Monarch butterflies.

Download the scavenger hunt sheet here:
�https://tcrcd.net/pdf/Spring_Wildflower_Scavenger_Hunt.pdf

Or pick up a paper copy at:
– Holiday Market
– Trinity County Visitor’s Center
– Trinity County RCD office (30 Horseshoe Lane, Weaverville)

When you’re finished, submit your completed sheet along with photos of the flowers you found to:
Duncan McIntosh at [email protected] to claim your prize.