Fish Passage and Protection Workshop

Wednesday, April 4, 2012

Workshop Coordinators: Randy Beckwith, Department of Water Resources, and Michael Love, Michael Love & Associates

Designing facilities to improve the passage and protection of salmonids at instream structures on rivers and streams is technically challenging. We cannot use a “cookie cutter” approach because every project site is different and there are many different kinds of technologies available to accomplish the same task. Therefore, we are still learning which ones are best for certain situations. For upstream passage at instream structures, fishways are often used, and juvenile salmonids are protected from injury, stranding, and predation by fish screens as they migrate downstream. At large flood control, water storage dams, collection and transport of both adult and juvenile migrants is currently the most prevalent way to pass salmonids. The design of upstream and downstream passage facilities must consider many factors, including the hydrology of the watershed, the hydraulic environment at the project site, sediment and debris loading, the swimming abilities and behavioral characteristics of the target fish, and the potential for increasing predation or poaching opportunities. In addition, the impact that a project will have on the bed and banks of a channel must be taken into account. Further, permitting requirements, such as those for flood control, can change the design of a project, and site and cost constraints can frequently make it infeasible to satisfy all existing design criteria over the entire design flow range. With all of these considerations, there is some uncertainty as to the performance of a particular fish passage or protection project once it is constructed. Given this uncertainty and considering that these types of projects are generally costly to implement, it is critical that we examine and learn from previous projects to maximize the potential for success.

In this workshop, morning and early afternoon speakers will present recently completed fish passage and protection projects on rivers and larger streams, with a focus on project design, implementation, and lessons learned. Later in the afternoon, the presentations will focus on fish passage at large dams.

Methods for Monitoring Fish Passage Structures
Joey Howard, Northwest Hydraulic Consultants

Two Approaches to Improving Fish Passage on the Cosumnes River: Restoring Connectivity on an “Undammed River”
Donald Ratcliff, US Fish and Wildlife Service

Budiselich Flashboard Dam Fish Passage Improvement Project: A Rock Ramp Roughened Channel Fishway in the Calaveras River System
Randy Beckwith, Department of Water Resources

Lessons Learned from the Design and Construction of Five Low-Water Crossings on Tajiguas Creek
Gaviota Coast, California, Rachel Shea, Michael Love & Associates, and Erin Brown, South Coast Habitat Restoration

Willow Slough Weir and Fish Ladder Replacement: Removing the Last Barriers on Lower Butte Creek
Harry Spanglet and Nancy Snodgrass, Department of Water Resources

Georgiana Slough – Bio Acoustic Fish Fence
Jacob McQuirk, Department of Water Resources

Developing Successful Fish Screen Projects: Lessons Learned
Les Perkins, Farmers Conservation Alliance

Fish Protection at the Red Bluff Diversion Dam Emergency Pumping Plant
Darryl Hayes, Intake Screens, Inc.

The Need for Fish Passage Above Rim Dams in the Central Valley
Alice Berg, National Marine Fisheries Service

Fish Passage Feasibility Evaluation at Shasta and Folsom Dams
John Hannon, U.S. Bureau of Reclamation

Anadromous Fish Passage and Reintroduction Opportunities in the Yuba River
Rick Wantuck, National Marine Fisheries Service

Volitional Up and Downstream Fish Passage at a Regulating Reservoir in Oregon
Andrew Talabere, Eugene Water and Electric Board

The New Selective Water Withdrawal and Fish Passage Facilities at the Pelton Round Butte Project on the Deschutes River in Central Oregon
Don Ratliff, Portland General Electric Company

The Response of Spring Chinook Salmon Inhabiting the South Fork McKenzie River, OR following the Construction of Cougar Dam
Greg Taylor, U.S. Army Corps of Engineers