Herman Creek

15 CFS Custom Retrofit Farmers Screen

Quick Facts:

  • Location: Cascade Locks, Oregon
  • Basin: Columbia
  • Owner: Oregon Dept. of Fish and Wildlife (ODFW)
  • Partners: ODFW, FCA, Specialty Metal Fabrication
  • Funding: ODFW
  • Installation Date: June, 2007

This Farmers Screen project addresses the following issues:


This screen was built and installed for ODFW at the lower hatchery site of Oxbow Hatchery on Herman Creek in Cascade Locks, OR. The site had an existing flat plate screen that did not meet criteria and required very high levels of maintenance to ensure water delivery to the rearing ponds.

Site Challenges:
• Provides water to ODFW fish hatchery
• Endangered species present
• Fit into existing concrete structure
• Piped return water

The challenge of this project was to fit a new Farmers Screen into the existing concrete infrastructure. The ODFW screen shop crew from The Dalles worked closely with FCA and ODFW engineers to come up with a workable design. The crew from the ODFW screen shop in The Dalles removed the old screen structure and completed the required concrete work to fit the new screen design. Specialty Metal Fab and FCA installed the new screen and then the crew from The Dalles screen shop painted the finished product.

Water enters the diversion through a head-gate located on the stream bank. The water flows down a concrete flume to the screen. The screened water moves directly to the rearing ponds while the cleaning water enters a pipe that delivers the water, fish, and debris to a point below the hatchery ponds.

This Farmers Screen installation has proven to be highly effective at safely passing fish and debris while minimizing maintenance. This site is open to the public from sunrise to sunset seven days a week.