Klamath River flows freely, after Copco-2 dam was removed in California – Courtesy of Swiftwater Films

For years, California was slated to undertake the world’s largest dam removal project in order to free the Klamath River to flow as it had done for thousands of years.

Now, as the project nears completion, imagery is percolating out of Klamath showing the waterway’s dramatic transformation, and they are breathtaking to behold.

Incredibly, the project has been nearly completed on schedule and under budget, and recently concluded with the removal of two dams, Iron Gate and Copco 1. Small “cofferdams” which helped divert water for the main dams’ construction, still need to be removed.

The river, along which salmon and trout had migrated and bred for centuries, can flow freely between Lake Ewauna in Klamath Falls, Oregon, to the Pacific Ocean for the first time since the dams were constructed between 1903 and 1962.

“This is a monumental achievement—not just for the Klamath River but for our entire state, nation, and planet,” Governor Gavin Newsom said in a statement. “By taking down these outdated dams, we are giving salmon and other species a chance to thrive once again, while also restoring an essential lifeline for tribal communities who have long depended on the health of the river.”

“We had a really incredible moment to share with tribes as we watched the final cofferdams be broken,” Ren Brownell, Klamath River Renewal Corp. public information officer, told SFGATE. “So we’ve officially returned the river to its historic channel at all the dam sites. But the work continues.”

Iron Gate Dam (before) – Credit: Swiftwater Films
Iron Gate Dam (after) – Credit: Swiftwater Films

“The dams that have divided the basin are now gone and the river is free,” Frankie Myers, vice chairman of the Yurok Tribe, said in a tribal news release from late August. “Our sacred duty to our children, our ancestors, and for ourselves, is to take care of the river, and today’s events represent a fulfillment of that obligation.”

The Yurok Tribe has lived along the Klamath River forever, and it was they who led the decades-long campaign to dismantle the dams.

BACK STORY OF THE DAM: Largest Dam Removal in History Begins Restoring Salmon and California Tribal Way of Life

At first the water was turbid, brown, murky, and filled with dead algae—discharges from riverside sediment deposits and reservoir drainage. However, Brownell said the water quality will improve over a short time span as the river normalizes.

“I think in September, we may have some Chinook salmon and steelhead moseying upstream and checking things out for the first time in over 60 years,” said Bob Pagliuco, a marine habitat resource specialist at the National Oceanic and Atmospheric Administration in July.

JC Boyle Dam (before) – Credit: Swiftwater Films
JC Boyle Dam (after) – Credit: Swiftwater Films

“Based on what I’ve seen and what I know these fish can do, I think they will start occupying these habitats immediately. There won’t be any great numbers at first, but within several generations—10 to 15 years—new populations will be established.”

Ironically, a news release from the NOAA states that the simplification of the Klamath River by way of the dams actually made it harder for salmon and steelhead to survive and adapt to climate change.

MORE WINS FOR WATER: Salmon Return to the Heart of UK for First Time in 100 Years After Dam Removal: ‘It’s very rewarding’

“When you simplify the habitat as we did with the dams, salmon can’t express the full range of their life-history diversity,” said NOAA Research Fisheries Biologist Tommy Williams.

“The Klamath watershed is very prone to disturbance. The environment throughout the historical range of Pacific salmon and steelhead is very dynamic. We have fires, floods, earthquakes, you name it. These fish not only deal with it well, it’s required for their survival by allowing the expression of the full range of their diversity. It challenges them. Through this, they develop this capacity to deal with environmental changes.”

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