The hatchery production will support supplementation programs in the Upper Salmon River tributaries of Yankee Fork and Panther Creek, with the goal or restoring locally adapted hatchery and natural spawning populations to these watersheds, to contribute to recove ry, and meet tribal cultural and harvest objectives. The grow-out facilities will use large circular tanks to allow operators to control and maintain optimal swimming velocities to produce healthier fish.
The project team collaborated with the Shoshone-Bannock Tribe to complete a Step 1 Master Plan, including bio-programming, conceptual design, construction and operating costs, HGMP’s, groundwater investigations, topographic surveys, and scientific justification for a new 1.0M smolt Chinook hatchery in Eastern Idaho.
After the preliminary design and engineering services, McMillen Jacobs developed the final design which will be complete in late 2015. The client is anticipating completion of the NEPA compliance late 2015 and McMillen Jacobs will begin construction 2016/2017.
Major project elements include a 14,000 sf hatchery and admin building, 2,400 sf office/shop building, development of a 24 cfs groundwater supply system, a water chilling system with energy recovery, cleaning waste treatment, and three on-site residences for hatchery staff. The project also includes new adult fish trapping, holding and stress relief ponds in both the basins.
Hatchery: Major project elements include a 14,000 sf hatchery and admin building, 2,400 sf office/shop building, development of a 24 cfs groundwater supply system, a water chilling system with energy recovery, cleaning waste treatment, and three on-site residences for hatchery staff. The grow-out facilities will use large circular tanks to allow operators to control and maintain optimal swimming velocities to produce healthier fish.
Broodstock Collection Facilities: The project also includes new adult fish trapping, holding and stress relief ponds on Yankee Fork Salmon River and Panther Creek. The facilities are very similar and include a full river width bridge picket barrier, fish ladder, pre-sort holding pond, post-sort holding ponds, spawning area and shelter, formalin treatment systems, facility intake, storage buildings, power and backup generation, site access, and personnel accommodations. The bridge weir was designed to accommodate the 100 year flood and bass large woody debris during major flow events. The weir will guide fish to the ladder entrance on the thalweg side of the river. The facility was designed for 10 cfs flow to be diverted from a cone screen upstream of the facility. The flow entered the pre and post sort holding ponds through floor diffusers, passes through the holding ponds, collected at the upstream end of the fish ladder and conveyed through the ladder to the entrance at the river edge.
All proposed sites were remote with no power available for the broodstock collection facilities. The proposed alternatives were screened to those that provided an effective, non-powered system. A truss bridge picket barrier system was selected since it did not required power, would operate over the full range of river flows, and provide safe access for debris removal from the picket panels.
The budget for developing the broodstock collection facilities was very limited. Our construction division prepared a base line estimate for each proposed alternative which accurately reflected the specific site constraints and challenges. These estimates were then used to help select a site and alternative that could be cost effectively implemented while also meeting all collection requirements. Realistic and timely construction cost estimating was critical to achieving this goal.