The upper Feldheimer site (RM 18.8) is an existing side channel that would provide critical rearing habitat for juvenile salmonids in a key reach of the lower Clackamas River. The project includes reestablishment of hydrologic connection via excavation at the inlet(s) and installation of an apex along the margin of Clackamas mainstem. Improving the quality and complexity of habitat would provide year-round benefits in a zone of decent water temperatures and key rearing location downstream of the River Mill Dam complex.