
Seattle's ongoing efforts to manage its natural resources have entered a critical phase with the relicensing of the South Fork Tolt Hydroelectric Project. The project, nestled in the Cascade foothills, has long been a collaboration between the City, various state and federal agencies, and the Tulalip Tribes, under the oversight of the Tolt Fishery Advisory Committee (TFAC). This group has embarked on a rigorously scientific journey to understand and enhance the local riverine habitat, particularly for its fish populations, as reported by Seattle's At Your Service blog.
In the early '90s, the TFAC initiated comprehensive studies to record and map the river's physical characteristics - this work is now informing current efforts. Professionals like Peggy Miller, once a FERC Coordinator with the Washington Department of Fish and Wildlife (WDFW), underscored the importance of an adaptive management approach; she stated in an interview with Seattle's At Your Service that this methodology means, "You try one thing, see how it works, learn from what you tried, and then either do it again or try something else."
The TFAC’s proven track record includes the deliberate addition of large woody debris into the river to stimulate natural habitat conditions for fish—a strategy that has shown favorable results. The City and TFAC, using helicopters, tactically placed heavy logs in the South Fork Tolt with some success, prompting subsequent operations in 2020 and 2021 that saw an additional 298 pieces of debris added to the aquatic terrain. Derek Marks, a long-serving TFAC member and representative for the Tulalip Tribes, lauded the cooperative spirit of TFAC, conveying to Seattle's At Your Service the sense of shared stewardship: “The TFAC works well for us because everyone there is invested in the outcome. We all have a little bit of ownership in the work. When it goes well, we share pride in our successes. When it doesn’t, we share the learning.”
Transparency in the process is another cornerstone of the relicensing efforts, with Leslie King, WDFW’s current FERC Coordinator, advocating for a methodical, longitudinal approach to environmental study: “So much of what we do is a learning process. It often takes years or decades to see the full extent of how our human activities affect the natural world. Our goals with these studies are to learn from the past and observe current conditions so we can make mindful decisions for the future,” King told Seattle's At Your Service. Anchoring these sentiments firmly in the present, plans proceed for more field work in 2026, with these findings anticipated to shape a new license application come July 2027. Public engagement and access to information remain pivotal, with the City ensuring that documents and updates are readily available to anyone interested at seattle.gov/tolt-relicensing.









