Sediment Transport Modeling for the Glen-Colusa Irrigation District Fish Screen Modificationsby Cassie Klumpp, (M.ASCE),
Arthur Glickman, (M.ASCE),
Brent Mefford, (M.ASCE),
Abstract: The Glen-Colusa Irrigation District (GCID) pumping plant is located on an oxbow of the Sacramento River approximately 100 miles north of Sacramento (Figure 1). The existing fish screen facilities do not meet current regulatory requirements and contribute to increased fish mortality. Fish in the intake channel may be subject to predation, and smaller fish may be impinged on the screens. The Bureau of Reclamation (Reclamation) was authorized to provide feasibility and final design work for the replacement of the fish screen. The facilities designed by Reclamation will allow GCm to operate the pumping plant at or near its full capacity of 3000 ft³/s. Sediment management issues were an important consideration in the design and location of the fish screen facilities. GCID dredges the intake channel and area in front of the existing screens following winter and spring runoff. Sediment buildup in front of the screens can exceed 3 ft. annually and can exceed 9 ft. at the intake channel entrance.
Subject Headings: Fish management | Sediment transport | Sediment | Irrigation districts | Hydrologic models | Pumping stations | Water intakes | Building design | Bureau of Reclamation | Rivers and streams | North America | California | United States | Sacramento
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