Engineering Seamless Passages for Aquatic Ecosystems.
Fish passage and aquatic organism connectivity is one of the most critical aspects of river restoration. Fish have an amazing ability to find habitat once they have access and our fish passage designs strive for volitional fish passage at all flows. Whether it’s a fish ladder, a diversion screen, or a stream simulation culvert, our designs are robust and able to accommodate all species.
Relevant Services
- Alternatives development and analysis
- Conceptual design through final design
- Diversion improvement alternatives analysis
- Feasibility assessment and cost estimating
- Fish ladder analysis, design, and permitting
- Fish passage culvert design
- Fish screen analysis and design support
- Fish screen and diversion design
- Geomorphic assessment and habitat evaluation
- Hydraulic modeling and fish passage analysis
- Monitoring and remote sensing with drones
- Permitting Plan Set and Basis of Design Report
- Project Presentations and Meetings
- Topographic and bathymetric surveys
Project Spotlights
Fish Passage
Upper Clark Fork River Diversions
River Design Group, now part of SWCA, is working with the Clark Fork Coalition, Trout Unlimited and the State of Montana to evaluate fish screen options and irrigation diversion improvements at several sites in the upper Clark Fork River basin. These projects are designed to enhance survival of native fish species via installation of fish screens and improvement of fish passage through the affected reaches. To date, RDG has completed designs for ten diversions and installed five fish screens
Meet The Experts
