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Hoosier Dam Removal Projectby: Angela Allen & John Hutton
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Project Funded by National Fish and Wildlife Foundation Grant
Project ManagerTechnical LeadRestoration Design
Geotechnical EngineerDemo Design
Endangered Species Propagation
Demolition and Restoration
Construction
Project Team
Sediment Transport Analysis
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Rocky River, Chatham County, NC
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Hoosier Dam/ Woody Dam• Built in 1922
• Hydroelectric dam
• Concrete and buttress dam with hydroelectric powerhouse
• 235 feet long, average height 25 feet.
• Impounds >16,000 LF Rocky River and >2,000 LF tributaries
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Critical Habitat Area for the Cape Fear Shiner
Photo from www.ncwildlife.org
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• Water Quality Analysis – July to September 2013• Geomorphic Assessment – July 2015• Wetland Delineation – July 2016• Grant Start – January 2017• Pre-Application Meeting – March 2017• Tier 1 Sediment Report – September 2016, reissued March
2017• Biological Assessment – May 2017• Dewatering of Impoundment/FERC exemption – June 2017• Permitting – March 2017 to ‘Sometime in the Future’• Dam Removal – October 2018?
Project Timeline
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All the Permits a PM Could Wish For……
• USACE/NCDWR – Nationwide 53 (Dam Removal), Nationwide 27 (Restoration)
• USFWS – Section 7 Consultation/Biological Opinion • NCSHPO – Historical/Archaeological Approval• FERC – Drawdown Request, Surrender of FERC exemption• FEMA – Dam removal is exempt from modeling, but site
will require no-rise, LOMR• NCDEQ - Erosion and Sediment Control Permit
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Water Quality Sampling
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Wetlands
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Tributary Stability
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Sediment Analysis
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SHPO Coordination
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Some Day…..
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Questions