Fall Creek Fish Hatchery

This new fish hatchery will rear Chinook and Coho salmon for the newly restored Klamath River following dam removals.

The project consisted of mass excavation to construct new fish collection, spawning, and sorting ponds, a new spawning building, new Chinook incubation building, Chinook rearing raceways, new coho incubation building, and new coho rearing raceways. Two diversion structures in Fall Creek were also rebuilt and new fish/trash screens added to one of them.

We successfully navigated multiple project challenges, including a small project footprint with a public road dissecting the site; tight in-water work windows and water quality standards; dense rock excavation of the site due to differing site conditions; and maintaining the City of Yreka’s water supply from Fall Creek while diverting the creek to replace two diversion structures.

We also modelled the entire mechanical and piping system to facilitate prefabrication of the schedule 80 PVC underground water supply system.