Elk Rock Island is a small but important island in the Willamette River. It provides valuable habitat for many kinds of plants and wildlife, including more than 50 rare plant species.
The side channel along the island (sometimes called the slough) is especially important for fish and amphibians. It has been identified as key winter habitat for salmon, giving young fish a safer place to rest and grow during the colder months.
In partnership with the City of Milwaukie and the North Clackamas Parks & Recreation District, the North Clackamas Watersheds Council is planning a restoration project to improve habitat in the side channel.
As part of this work, large pieces of wood will be placed throughout the channel. These logs and root structures help slow the flow of water, creating calmer areas where fish can rest during high water events. The wood also creates hiding places and deeper pools that help protect fish from predators.
The project will also improve wetland and streamside habitat by removing invasive plants and planting native species. Native plants provide shade that helps keep the water cooler during the summer. Their roots also help hold soil in place, reduce erosion during floods, and naturally add woody material to the stream over time.
This project is anticipated to go to construction in the summer of 2027.
Community Engagement and Outreach
The Council supports and hosts community education and volunteer events at Elk Rock Island and Spring Park every year. This is an opportunity for us to connect with our community, share about our work, and collaborate with our agency and community partners on restoration work that improve native fish and wildlife habitat.
ncwatersheds.org 