Kay Young diversion project
QCI worked with the U.S. Fish and Wildlife Service, Eagle Valley Soil and Water Conservation District, irrigators, and adjacent landowners to provide a design for the reconstruction of an existing irrigation diversion on Eagle Creek. Project design constraints required maintaining an irrigation delivery of approximately 40 cfs with typical seasonal stream flow variation from 100 cfs to over 2,000 cfs, with high flows exceeding 4,000 cfs, while providing for upstream bull trout passage. The project included a fish passage feasibility analysis of the design alternatives meeting stakeholder needs that would accommodate the approximately 72 inches of vertical drop at the existing structure. The redesigned diversion structure included a concrete crest for irrigation grade control, and a 260-foot long rock ramp to facilitate upstream fish passage. QCI assisted with the project bidding process and provided construction staking and oversight as necessary through project implementation.