Here's a news release from Ada County:
(Boise, ID) – The Ada County Environmental Advisory Board’s project to improve fish habitat in a stretch of the Boise River near Barber Park and the Eckert Bridge got underway Nov. 16 and will continue for about a month. Idaho Fish and Game will not stock fish in the Barber Park area during construction.
The $45,000 project will place engineered log structures and boulder clusters in the river that will improve fish habitat by increasing channel complexity as well as providing more cover and current breaks. The log structures will be partially buried in the riverbanks and anchored to the river bottom with log pilings. The riverbanks will be replanted with native willow species following construction using volunteer laborers. The project is expected to be complete by mid-December. During construction citizens will not have access to the river from the Barber Park Boat Ramp upstream to the Eckert Bridge and along banks and nearby trails while equipment is operating.
The Idaho Department of Fish and Game generously provided permitting, engineering and project management services necessary to implement this project.
See the full press release here.