Libby Dam 50th Commemoration: Reflections of Legacy

U.S. Army Corps of Engineers/Seattle District
Published Aug. 28, 2025
Libby Dam Operating Project Manager Rick Spiger and U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn cut a slice of cake, to celebrate Libby Dam's 50th commemoration, Aug. 23, 2025. The event, which included a formal ceremony with Presentation of Colors and a memorial unveiling, included walking across the top of the dam and the Treaty Tower.

Libby Dam Operating Project Manager Rick Spiger and U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn cut a slice of cake, to celebrate Libby Dam's 50th commemoration, Aug. 23, 2025. The event, which included a formal ceremony with Presentation of Colors and a memorial unveiling, included walking across the top of the dam and the Treaty Tower.

Photo of the winning logo designed and submitted by Adrian Volz, as part of the U.S. Army Cops of Engineers, Seattle District's Libby Dam 50th Commemoration logo contest. Volz's design incorporates concepts that reflect Libby Dam's authorized purposes of flood reduction, hydropower, recreation and environmental stewardship.

Photo of the winning logo designed and submitted by Adrian Volz, as part of the U.S. Army Cops of Engineers, Seattle District's Libby Dam 50th Commemoration logo contest. Volz's design incorporates concepts that reflect Libby Dam's authorized purposes of flood reduction, hydropower, recreation and environmental stewardship.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn chats with Mrs. Millie Cole, widow of Phil Cole, the resident engineer at Libby Dam during its construction. Mrs. Cole was a special guest of USACE for Libby Dam's 50th commemoration, Aug 23, 2025.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn chats with Mrs. Millie Cole, widow of Phil Cole, the resident engineer at Libby Dam during its construction. Mrs. Cole was a special guest of USACE for Libby Dam's 50th commemoration, Aug 23, 2025.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn, Libby Dam Operating Project Manager Rick Spiger and members of the VFW and American Legion who presented the Colors and performed Taps, during the memorial unveiling, as part of Libby Dam's 50th commemoration, Aug. 23, 2025, at Libby, Montana.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn, Libby Dam Operating Project Manager Rick Spiger and members of the VFW and American Legion who presented the Colors and performed Taps, during the memorial unveiling, as part of Libby Dam's 50th commemoration, Aug. 23, 2025, at Libby, Montana.

Attendees view artwork displayed in Libby Dam's Visitor Center, during the dam's Open House event, as part of the 50th commemoration, Aug. 23, 2025. The commemoration recognizes the achievements of former and current U.S. Army Corps of Engineers, Seattle District employees in building and maintaining the dam, and the partnerships that made it possible.

Attendees view artwork displayed in Libby Dam's Visitor Center, during the dam's Open House event, as part of the 50th commemoration, Aug. 23, 2025. The commemoration recognizes the achievements of former and current U.S. Army Corps of Engineers, Seattle District employees in building and maintaining the dam, and the partnerships that made it possible.

Attendees stand at attention while the U.S. National Anthem is played during Libby Dam's 50th commemoration, Aug. 23, 2025. Community band Big Sky Bows and Blowhards performed the National Anthem, while Montana Historian Mr. Rich (Ray) Aarstad read the names of the employees who lost their lives during the memorial unveiling.

Attendees stand at attention while the U.S. National Anthem is played during Libby Dam's 50th commemoration, Aug. 23, 2025. Community band Big Sky Bows and Blowhards performed the National Anthem, while Montana Historian Mr. Rich (Ray) Aarstad read the names of the employees who lost their lives during the memorial unveiling.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn and Libby Dam Natural Resource Manager Tana Wilson chat with members of the public who attended the 50th commemoration of the dedication of the dam, Aug. 23, 2025. The colonel spoke with family members of the 12 men who lost their lives during the dam's construction, between 1966 and 1972. Their names were listed on a memorial Sanborn and Wilson unveiled during the event.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn and Libby Dam Natural Resource Manager Tana Wilson chat with members of the public who attended the 50th commemoration of the dedication of the dam, Aug. 23, 2025. The colonel spoke with family members of the 12 men who lost their lives during the dam's construction, between 1966 and 1972. Their names were listed on a memorial Sanborn and Wilson unveiled during the event.

Libby Dam Operating Project Manager Rick Spiger and U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn thank members of the VFW and American Legion, who presented the Colors and performed Taps, during Libby Dam's 50th commemoration, Aug. 23, 2025. The event also included a memorial unveiling, public access to the top of the dam and touring the Treaty Tower.

Libby Dam Operating Project Manager Rick Spiger and U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn thank members of the VFW and American Legion, who presented the Colors and performed Taps, during Libby Dam's 50th commemoration, Aug. 23, 2025. The event also included a memorial unveiling, public access to the top of the dam and touring the Treaty Tower.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn with members of the district's natural resource specialist team and Bobber the Water Safety Dog, pose for a group photo during Libby Dam's 50th commemoration, Aug. 23, 2025, at Libby, Montana.

U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn with members of the district's natural resource specialist team and Bobber the Water Safety Dog, pose for a group photo during Libby Dam's 50th commemoration, Aug. 23, 2025, at Libby, Montana.

 Fifty years to the day after President Gerald Ford stood on its crest to dedicate it as an "engineering marvel," Libby Dam once again took center stage, drawing hundreds of community members to mark its 50th commemoration.

The event, held at the dam's visitor center, was a powerful tribute to a structure that has not only shaped Northwest Montana’s landscape, but has become a cornerstone of the region's identity.

“For 50 years, Libby Dam has been a lifeline—powering homes with clean, reliable hydropower, fueling economic growth and boosting our energy independence,” said U.S. Army Corps of Engineers, Seattle District Commander Col. Kathryn Sanborn. “It’s also a guardian, protecting downstream communities from flooding and providing Lake Koocanusa, a playground for thousands of visitors every year who come to enjoy its stunning beauty and recreational opportunities,” the district engineer continued.

In addition to celebrating a technological feat, the commemoration on Saturday, Aug. 23, was the community’s journey into the dam’s history and its impact on the generations living in its shadow. The day's events, organized by the Army Corps, offered a rare glimpse into the dam's inner workings and a moment to reflect.

“If it weren’t for the construction of Libby Dam, I’m not sure I’d be here today,” said Libby Dam Natural Resource Manager Tana Wilson. “The construction of Libby Dam set my life’s story in motion in a couple of ways.”

Following in the footsteps of her grandfathers who both worked on the dam during its construction, Wilson said, “It’s pretty neat to look back at the dam’s construction, my family’s part in it, and look toward to the future as we commemorate the past.”

One of the day’s highlights was the memorial unveiling, honoring the 12 lives lost during the dam's construction between 1966 and 1972. As the plaque was revealed, their names were read aloud, a moving reminder of the human cost and sacrifice that paved the way for the dam's many benefits. Speaking to the project’s enduring legacy, Sanborn said, “I think it really underscores how much a project like this means to a community."

Attendees walked across the top of the dam; an experience not regularly accessible to the public since 9/11 due to security reasons. From that vantage point, visitors had an unparalleled view of the Kootenai River below and the vast expanse of Lake Koocanusa—the 90-mile-long reservoir that stretches into Canada.

The day was filled with a variety of activities that celebrated Libby Dam’s past and present. A historical talk by Montana historians delved into the construction era, while an open house at the visitor center featured a captivating exhibit of photos and memorabilia from the 1960s and 70s. The authors of "Waters of Wealth" and “Operation BOLD: Libby Dam at Fifty,” books detailing the dam's history, were on hand for book signings, further connecting the community with its rich heritage.

The dam, built as part of the Columbia River Treaty, was designed to address annual spring floods that inundated the Kootenai and Columbia River watersheds. Its construction was a massive undertaking, requiring the town of Rexford to be relocated, and extensive adjustments to highways and railroads.

The $500-million project, which at its peak hired more than 2,000 workers, continues to provide vital flood risk mitigation, generate clean hydroelectric power, and includes Lake Koocanusa, a recreational paradise.

As the sun set on the commemoration, it was clear that the event was more than just a historical marker. It was a testament to the community's resilience, a tribute to the workers who built the dam and a forward-looking acknowledgment of the dam's continued role in safeguarding and sustaining the region for years to come.

“As we remember the past, we also look to the future,” said Libby Dam Operating Project Manager Rick Spiger. “My team and I, along with our partners, are committed to maintaining Libby Dam and ensuring it continues to serve its important purposes for many years to come. We will always adapt to new challenges and embrace new opportunities.”

The commemoration underscored the balance between human innovation and environmental stewardship—a message as relevant today as it was 50 years ago.