The latest phase of a project to restore salmon spawning areas in the American River begins today near River Bend Park in Sacramento.

The project involves spreading gravel in the riverbed so migrating wild Chinook salmon have more room to create “redds”, or nests for their eggs. The goal is to replenish gravel that would have naturally washed downstream, but has been blocked for decades by Folsom and Nimbus dams.

Led by the U.S. Bureau of Reclamation, which owns the dams, the project is in its sixth year and has already proven successful by increasing the number of documented redds.

About 6,000 tons of gravel will be added to the lower American River during this year’s phase of the project. Some 5,500 square yards of improved spawning habitat will be created. This year’s work is estimated to cost $400,000.

Work hours will be Monday through Friday from 7 a.m. to 5 p.m. All work is located immediately downstream from the pedestrian bridge at River Bend Park. The work is expected to be finished by Friday, Sept. 27.