Alliant Energy to complete Prairie du Sac Dam improvement project

Prairie du Sac Dam parking area and access road will be closed December 16-17 and December 20-23

PRAIRIE DU SAC, Wis. (December 13, 2021) – Alliant Energy will soon complete its Prairie du Sac Dam improvement project. The Prairie du Sac Dam parking lot area and access road will be closed December 16-17 and December 20-23, 2021, to ensure a safe area for Alliant Energy crews to complete the project and remove barges from the Wisconsin River above the dam. 

“We’re excited to wrap up this improvement project and our number one priority is to complete our work safely,” said Eric Curtis, Alliant Energy project manager. “Using the parking lot as a barge drop off and demobilization staging area will allow crews to finish their work while ensuring the safety of the public, especially those who visit the area for recreational activities.”

The dam improvement project utilized a crane secured to a barge to replace the existing spillway operator deck. The spillway operator deck allows for safe operation of the spillway gates, which benefits the public who enjoy recreation near the dam. 

The parking lot area and access road will be closed to public vehicle and pedestrian traffic from 5 a.m. to 7 p.m. December 16-17 and December 20-23. The closure will allow about two dozen large construction vehicles to safely remove sections of the barges from the site. Outside of these dates and times, access to the site and waters around the dam will remain open.

“For more than 100 years, the Prairie du Sac Dam has delivered clean, safe and reliable energy,” said Curtis. “We appreciate the public’s understanding and patience while we complete this project.”

About Alliant Energy  
Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to 975,000 electric and 420,000 natural gas customers across Iowa and Wisconsin. Alliant Energy's mission is to deliver the energy solutions and exceptional service customers and communities count on – safely, efficiently and responsibly. Interstate Power and Light Company and Wisconsin Power and Light Company are Alliant Energy's two public energy companies. Alliant Energy is a component of the Nasdaq CRD Sustainability Index, Bloomberg’s 2020 Gender-Equality Index, and the S&P 500.

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