Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

Things to know about the Klamath River dam removal project, the largest in US history

The largest dam removal project in U.S. history is underway along the border between California and Oregon

Adam Beam
Friday 29 September 2023 08:00 BST

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

The largest dam removal project in United States history is underway along the California-Oregon border.

The project will remove four dams on the Klamath River. Work has already begun on removing the smallest of the four dams. The other three will come down next year.

The project is part of a larger trend across the U.S. to remove dams blocking the natural flow of rivers and streams. Some things to know as the project gets going:

WHY ARE THE DAMS BEING REMOVED?

The dams were built decades ago to generate electricity. But they also halted the natural flow of the river and disrupted the lifecycle of salmon. The fish are culturally and spiritually important to several Native American tribes in the area.

In 2002, a combination of low water levels and warm temperatures caused a bacterial outbreak that killed more than 34,000 fish. That propelled Native American tribes to campaign for removal of the dams.

After much negotiation, federal regulators approved a plan last year to remove the dams. PacifiCorp transferred the dams to a nonprofit that will oversee the project.

WHEN WILL THE DAMS BE REMOVED?

Work already has begun on removing the smallest of the four dams, known as Copco 2.

Removing the other three dams will take longer because those dams are much larger. Work is scheduled to begin in January and the dams should be removed by the end of 2024.

HOW WILL THE DAMS BE REMOVED?

There won't be one giant explosion. Instead, workers will slowly drain the reservoirs behind the dams this spring. Once that work is done, crews will begin dismantling the dams, mostly using heavy machinery and some small explosives.

The work includes more than just demolition. Crews also will try to restore the area to the conditions before the dams were built. For years, Native American tribes have gathered seeds of native plants by hand. Those seeds were sent to nurseries, which grew more seeds to plant along the riverbanks.

HOW MUCH WILL THIS COST AND WHO WILL PAY FOR IT?

The project has a $450 million budget, with a $50 million contingency fund. The cost is split between taxpayers and ratepayers of utility company PacifiCorp.

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in