Fish Passage Design for Road Crossings Workshop and Field Tour
31 March - 01 April 2020
9:00am - 5:00pm
Michael Love P.E., Michael Love & Associates, Inc.
Ross Taylor, Ross Taylor and Associates
Field Tour Presenters:
Steve Wiesner, Asst Director, County of Santa Cruz Dept. of Public Works
Gary Kittleson, Kittleson Environmental
This two-day workshop will focus on fish passage design approaches and techniques for road-stream crossings and other low-head barriers. The course will be structured around Part XII – Fish Passage Design and Implementation - of the CDFW California Salmonid Stream Habitat Restoration Manual. The workshop is intended for participants with a variety of backgrounds, including engineers, biologists, geologists, planners, and project managers.
Covered topics include:
- Biological imperative of providing passage
- Assessing geomorphic risk for a fish passage project
- Pre-design and selection of project approach
- Stream simulation design and reference reach characterization
- Roughened channel design
- Use of boulder and log weirs
- Retrofits and technical fishways
The workshop will have participants work on sample problems taken from real projects, including analysis of thalweg profiles, developing designs for a stream simulation culvert crossing, and sizing material for a roughened channel. Participants should bring a calculator and a ruler. The second half of Day 2 will include a field tour to a range of fish passage sites within Santa Cruz’s Corralitos Creek. Sites include full replacements and retrofits of stream crossings and a fish ladder, illustrating the various design approaches covered in the workshop and described in CDFW Part XII.