SCH Number 2026030679

Project Info

Title

Powerhouse Riffles Restoration Project

Description

The Powerhouse Riffles Restoration Project is a mainstem Tuolumne River restoration effort designed to improve spawning and rearing habitat for Fall-run and Spring-run Chinook salmon (Oncorhynchus tshawytscha), and Oncorhynchus mykiss. The Project will replace riffles that were scoured during high flows in 1997, 2011, and 2017, and will contribute towards non-flow commitments made under the Healthy Rivers and Landscapes Program. Approximately 25,000 cubic yards of spawning gravel will be used to construct riffles and gravel bars, which will create 4.8 acres of new gravel features, restoring 2,400 linear feet of the Tuolumne River. The Project will also add 49 large trees or rootwad logs as habitat features, and 80 boulders to provide hydraulic diversity in spawning riffles.

2 documents in project