Battle Creek Salmon and Steelhead Restoration Project (Restoration Project) implementation includes modification of facilities at Battle Creek Hydroelectric Project diversion dam sites, located on North Fork Battle Creek, South Fork Battle Creek, and Baldwin Creek in three phases (Phases 1A, 1B and 2).
Phase 1A includes installation of fish screens and fish ladders at the North Battle Creek Feeder and Eagle Canyon Diversion Dams on North Fork Battle Creek; removal of Wildcat Diversion Dam and appurtenant conveyance system on North Fork Battle Creek; and construction of a fish barrier weir on Baldwin Creek downstream of Asbury Pumped Diversion Dam.
Phase 1B includes installation of an Inskip Powerhouse tailrace connector and bypass on South Fork Battle Creek.
Phase 2 includes installation of a fish screen and fish ladder on Inskip Diversion Dam; installation of a South Powerhouse tailrace connector; and removal of Lower Ripley Creek Feeder, Soap Creek Feeder, Coleman and South Diversion Dams and appurtenant conveyance systems, on South Fork Battle Creek.
March 2018 Status
Phase 1A – Wildcat Diversion Dam and conveyance system (pipeline and canal) were removed in 2010; resulting in the restoration of about 15 miles of stream habitat for Chinook salmon and Central Valley steelhead trout. In October 2011, work occurred along the Wildcat Canal access road to correct drainage problems and to install permanent erosion control measures.
Construction of fish barrier weir, located downstream of Asbury Pumped Diversion Dam on Baldwin Creek, was completed in 2013. The barrier weir, which allows for a constant release of 5 cubic feet per second in Baldwin Creek, is restoring about one mile of suitable habitat for salmon and steelhead, while protecting the upstream Darrah Springs State Trout Hatchery from infectious diseases carried by the anadromous fish.
Fish screens and fish ladders were constructed at the Eagle Canyon Diversion Dam and North Battle Creek Feeder (NBCF) Diversion Dam sites from 2010-2012; however, as the result of hydraulic evaluations of these new facilities (in 2012) and physical modeling of the NBCF fish ladder and fish screen (in early 2013), it was determined that modifications were necessary. The North Fork Screens and Ladders Completion Contract was awarded in July 2016 to implement these modifications through 2018. The contract involves modifying the NBCF Diversion Dam fish ladder and fish screen to ensure hydraulic design criteria are met, to address operational and access needs and safety issues, and to improve the function and durability of existing maintenance, sensor, and monitoring systems; and addressing Eagle Canyon Diversion Dam operational and access needs, safety issues, and undesirable false fish-attraction spills. NBCF and Eagle Canyon facility testing, acceptance and transfer (to PG&E) is anticipated to occur from late 2018 into early 2019.
Upon completion of Phase 1A, 25 miles of stream habitat will be restored.
Phase 1B – To prevent the mixing of North Fork Battle Creek water with South Fork Battle Creek water, a 5,600-foot penstock bypass pipeline and chute system to Coleman Canal and a 650-foot tailrace connector from Inskip Powerhouse to Coleman Canal were constructed in 2012. Due to a significant storm event in December 2012, access road repairs and sediment erosion cleanup occurred in 2013. Safety and facility access improvements occurred in 2014 and 2015. Low flow facility testing occurred in 2016, and high flow facility testing occurred in January 2017. Facility acceptance and transfer (to PG&E) is anticipated to be completed in 2018.
Phase 2 – Designs are nearly completed. Construction is planned to occur under three construction contracts.
- Hydropower Facilities Modifications - Stage 2, Part 1:
- Construction of South Powerhouse tailrace connector tunnel to Inskip Canal (including a mechanically stabilized earth dike), and Inskip Diversion Dam access road.
- Final plans and specifications planned were completed in February 2018; contact award anticipated in November 2018; and construction completion anticipated in July 2021.
- Hydropower Facilities Modifications - Stage 2, Part 2:
- Construction of Inskip Diversion Dam fish screen and ladder and removal of Lower Ripley Creek Feeder and Coleman Diversion Dams.
- Final plans and specifications planned to be completed in October 2018; contact award anticipated in January 2020; and construction completion anticipated in December 2022.
- South Diversion Dam and Canal Removal:
- Removal of South Diversion Dam, South Canal and Soap Creek Feeder Diversion Dam
- Final plans and specifications were completed in February 2018; contract award anticipated in December 2018; and construction completion anticipated in December 2020.
Upon completion of Phase 2, 23 miles of additional stream habitat will be restored, for a total of 48 miles of restored habitat.
Processes to ensure fisheries objectives and goals are met will be implemented beyond Restoration Project construction completion.
Battle Creek Restoration Project Adaptive Management – The Restoration Project Adaptive Management Plan (AMP) was completed in 2004, and its’ goal is to implement specific actions to protect, restore, enhance and monitor salmonid habitat associated with the Battle Creek Hydroelectric Project within the Restoration Project area to guard against false attraction of adult migrants, and ensure that Chinook salmon and steelhead are able to fully access and utilize available habitat in a manner that benefits all life stages and thereby maximizes natural productions, fully utilizing ecosystem carrying capacity.
Coleman National Fish Hatchery (CNFH) Adaptive Management – CNFH is located downstream of the Restoration Project area on the main stem of Battle Creek. CNFH is funded by Reclamation, owned and operated by USFWS, and guided by USFWS policy and other state and federal laws. The CNFH AMP, completed in November 2016, includes solutions and processes to support CNFH programs, operations and infrastructure so that hatchery mitigation goals and objectives are achieved and there is compatibility with the Restoration Project.
Integrated Framework for Adaptive Management in Battle Creek – The Restoration Project 1999 MOU partners; Reclamation, USFWS, NMFS, CDFW, and PG&E, are committed to coordinate CNFH AMP and Restoration Project AMP efforts to form a single integrated framework for adaptive management in Battle Creek. This commitment is memorialized in the Memorandum of Understanding Regarding Integrated Adaptive Management of the Battle Creek Salmon Steelhead Restoration Project and Coleman National Fish Hatchery, signed by the Project Partners in November 2016 and included (as an appendix) in the CNFH AMP.
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Last Updated: 10/16/19