Wisconsin Hydro Project Seeks License Tweak, Invites River Neighbors
Published Date: 8/1/2025
Notice
Summary
Northern States Power Company in Wisconsin wants to make some changes to their Big Falls Hydroelectric Project on the Flambeau River. These changes won’t affect how much power the project produces but might impact how it operates or the environment. People and groups have until August 28, 2025, to share their thoughts or get involved—no big money changes are expected.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
New Dike Proposed to Improve Dam Safety
Northern States Power Company–Wisconsin has asked FERC for approval to build a new dike at the Turtle‑Flambeau Reservoir to comply with the Commission's dam safety guidelines. A 2007 probable maximum flood study identified low areas that could overtop during extreme floods, and the Turtle‑Flambeau development has earthen embankment crest elevations of about 1,574 to 1,577 feet (NGVD29 + 0.3 foot). The application was filed April 3, 2025, and the public may submit comments or motions to intervene by August 28, 2025.
Project Won't Change Power Output
The filing is a non‑capacity amendment for the Big Falls Hydroelectric Project (P-2390-085), meaning the proposed changes will not affect how much power the project produces. The license for the project was issued on February 5, 1997, amended October 14, 2008 to include the Turtle‑Flambeau Reservoir, and this amendment was filed April 3, 2025 with a comment deadline of August 28, 2025.
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Key Dates
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