Elk Rock Island is a small, but ecologically important, island on the Willamette River. The island provides critical habitat for many terrestrial and aquatic species, including more than 50 rare and unique plant species! The side channel along Elk Rock Island (pictured above) is habitat for many species of fish and amphibians, and has been identified as key winter rearing habitat for salmon species. 

In partnership with the City of Milwaukie and North Clackamas Parks & Recreation District, the North Clackamas Watersheds Council is working to design and implement a restoration project within the side channel of Elk Rock Island to enhance aquatic habitat. As part of this restoration work we will be placing large wood throughout the side channel and floodplain. Large wood will help to slow the flow of water through the channel providing fish with some refuge during high flow events. These large pieces of wood will also help to provide cover and create pools for fish to rest and hide from predators.

Finally, we will also improve wetland and riparian vegetation in the side channel by removing invasive species and planting more native plants in those areas. This will help to increase shade in the side channel and regulate water temperatures during the summer months. Native plants also help to stabilize soils, slow down high velocity water during flooding events, and eventually add to the woody material in the stream channels. This project is anticipated to go to construction in the summer of 2026.