200753000 - MADS Weir Demonstration Project in Walla Walla Subbasin (MADS - Modular Arch Drop Structure)
Sponsor: Steward and Associates (in conjunction with the Walla Walla County Soil and Water Conservation District)
Short description: This project will demonstrate the effectiveness of a low cost method for addressing fish passage problems caused by perched culverts, incised channels, and water diversion structures, including push up dams.
Location: Mainstem/Systemwide province, Walla Walla subbasin
Budgets: FY08: $103,050 | FY09: $15,700
Primary species:
Anadromous: Anadromous Fish
Anadromous: All Anadromous Fish
Anadromous: All Anadromous Salmonids
Anadromous: Other Anadromous
Resident: Resident Fish
Resident: All Resident Fish
Objectives
| Objective | Description | Subbasin plan | Strategies |
| 1. Facilitate fish passage | Facilitate the volitional passage of salmonids and other aquatic species through a currently impassable culvert, steep channel section, or water diversion structure in the Walla Walla subbasin. | ||
| 2. Site selection and landowner agreement | In conjunction with the Walla Walla County SWCD, we will work with a voluntary landowner to configure and install a MADS structure in a location where conventional fish passage solutions are not tenable, and where the restoration of fish passage will provide access to currently unoccupied, high quality spawning and rearing habitat. | ||
| 3. Design and build MADS structure | Demonstrate the cost-effectiveness and structural soundness of MADS as a means of correcting passage deficiencies and controlling stream channel grade in degraded sections of streams. | ||
| 4. Monitor/evaluate performance and applicability | Measure performance over time under a range of flow conditions and invite agency personnel and potential users to view the finished MADS structure to evaluate its effectiveness and applicability in other settings. | ||
| 5. Disseminate MADS documentation and guidance | Develop and distribute a MADS brochure, design guide and specifications for use at other sites, so that fish passage can be restored in situations previously judged infeasible or too expensive. |
Narrative
Recommendations
- ISRP: Unranked
- Council: Not fundable
- BPA: Not fundable