Please email water@calsalmon.org or call our office at 707-923-7501 for more information
January 2025 - The Marshall Ranch Streamflow Enhancement Project was featured on the KMUD Environment Talk Show.
October 2024 - The Marshall Ranch Streamflow Enhancement Project was featured on the KMUD Environment Talk Show.
September 2024 - The Trees Foundation's Forest & River News published an article titled Success! Salmon returning SRF Marshall Ranch Update.
August 2024- Community tour of Marshall Ranch ponds led by Joel Monschke (Stillwater Sciences).
2024 Construction elements include: installing a 90,000-gallon rainwater catchment tank, fencing, and installing super valves and instrumentation to support the flow augmentation. Flow releases will likely begin in late June.
January 2024
Both ponds were full by late January.
November 2023
The Trees Foundation's Forest & River News published an article titled If You Build It, Will Coho Run?
June - October, 2023
Constructed two off-channel ponds and associated plumbing and infrastructure. Installed large wood structures, stabilized gullies, native revegetation, and completed control centers for long-term project management.
September 2023
Rossi et al. are excited to share a new paper which evaluates the effect of flow augmentation from off-channel storage on habitat connectivity, water quality, invertebrate drift, and juvenile salmonid movement and survival in a small stream. Their study took place in a Russian River tributary and included an unusually wet summer (2019) and a more typical dry summer (2020). They used categorical and time-series analyses in a before–after, control–impact (BACI) design, along with capture–mark–recapture methods to evaluate the ecological impacts of a 13.9-L/s (~0.5 cfs) flow augmentation. A key finding was that flow augmentation increased the survival probability for salmonids, with a larger effect during the dry summer (24% higher survival for Coho Salmon and 20% higher survival for steelhead) than during the wet summer (no effect was observed for steelhead survival, and Coho Salmon survival increased by 11%). This effort suggests that appropriately designed, small-scale flow augmentations (like the Marshall Ranch Project) can improve conditions for rearing salmonids particularly during dry years. More broadly, it provides empirical evidence (often lacking!) that efforts to restore summer streamflow in small, salmon-bearing streams can yield significant ecological benefits.
Flow augmentation from off-channel storage improves salmonid habitat and survival
June 2023
SRF was interviewed by Alicia Hamann of Friends of the Eel River for an episode of the EcoNews Report about SRF’s streamflow enhancement efforts in South Fork of the Eel River. The topics of the show include the current construction of the Marshall Ranch Streamflow Enhancement project and the flow enhancement implementation plans in Redwood and Sproul Creek. You can listen to and or read the interview here.
May 2023
SRF's Marshall Ranch Flow Enhancement Implementation project was featured on KMUD's Environment Show on Tuesday, May 30. Trees Foundation hosts Mary and Kerry, interviewed SRF's Executive Director about the status of the project and the long-term goals to augment dry season instream flows for salmonids. Listen here.
April 2023
The Trees Foundation's Forest & River News published an article titled Marshall Ranch Flow- Enhancment Implementation Project Underway
January 6, 2022 6pm, Public Hearing and Intent to Adopt a Mitigated Negative Declaration
The Humboldt County Planning Commission held a public hearing to consider the adaption of a mitigated negative declaration (MND) for the Marshall Ranch Pond streamflow enhancement project. The meeting details and Agenda are available.
The Humboldto County Planning Commission unanimously adopted the MND for the Marshall Ranch Flow Enhancement project.
KMUD news: County OKs 'Faboulous' SoHum Water Storage Project
Public Hearing and Intent to Adopt a Mitigated Negative Declaration-Thursday, December 16, 2021 6pm
The Humboldt County Planning Commission held a public hearing to consider the adaption of a mitigated negative declaration (MND) for the Marshall Ranch Pond streamflow enhancement project. Please see the Public Notice. This agenda item was postponed to Jan 6, 2022.
September 8, 2021- Redwood Creek Community Meeting
SRF hosted a presentation and community meeting about the status of Redwood Creek flow enhancement planning and the revised Marshall Ranch off-stream pond project. The Agenda included an overview of the 2021 Redwood Creek low flow conditions, fisheries significance, and flow enhancement planning efforts; a status Report on current Marshall Ranch Flow Enhancement Project and CEQA timeline; and moderated Q&A. You can access the video recording here.
September 7, 2021: KMUD News : Dana Stolzman (SRF Executive Director) announces community meeting Wednesday, September 8 about the Marshall Ranch Off-stream Pond Project.
Redwood Creek Flow Enhancement Public Meeting - February 25, 2021
SRF hosted a public meeting via Zoom to provide project updates and answer questions. A recording of the meeting is available on our vimeo page.
February 23, 2021: KMUD News - Morning Show
Dana Stolzman (SRF Executive Director) provides background information on Redwood Creek flow enhancement efforts and how to join the upcoming public meeting on Thursday, February 25 at 5pm via Zoom.
December 9, 2020: Humboldt County will be re-noticing the public comment period in January or February, 2021. All comments already received by the County will remain part of the public record.
November 12, 2020: Public Affairs Radio Show on KMUD
Dana Stolzman (SRF) and Joel Monschke (Stillwater Sciences) provided project information and took questions from callers regarding the Marshall Ranch project.
October 8, 2020: Sanctuary Forest Public Affairs Radio Show on KMUD
Dana Stolzman (SRF), Joel Monschke (Stillwater Sciences) and Tasha McKee (Sanctuary Forest) discuss outcomes from Mattole pilot water projects and current strategies for restoring flows.
October 7, 2020: Project Status Update Presentation
SRF Executive Director Dana Stolzman and Stillwater Sciences engineer Joel Monschke provide an update on the Marshall Ranch Flow Enhancement project (video of slides).
October 7, 2020: Project Status Update
Project summary and resources for more information.
October 1, 2020: 90% Basis of Design
This document, prepared by Stillwater Sciences, details the scientific analyses and design plans for this project.
September 1, 2020: KMUD News Radio Interview
SRF Executive Director Dana Stolzman and Stillwater Sciences engineer Joel Monschke provide an update on the Marshall Ranch Flow Enhancement project (audio only).
August 2, 2020: 90% Design Plans
Draft design plans and site maps.
January 2017: Redwood Creek Feasibility Study
Flow Enhancement Feasibility Study for Part of Redwood Creek in the South Fork Eel River Watershed
