 Completed in 1985, the 1.3 MW plant generates about 6.7 GWh per year from a maximum flow of .Most of the water, however, is diverted through a long tunnel to the Belden Powerhouse, which is located on Rock Creek Reservoir, another small reservoir on the North Fork.Rock Creek Reservoir is not part of the Upper North Fork project, but rather part of PG&E's separate Rock Creek-Cresta Hydroelectric Project.