Snake River Dams Litigation Resumes After Trump Administration Revokes Biden-Era Agreement

Picture by Kent Sanders

A decades-long authorized battle over the destiny of 4 federal dams on the Decrease Snake River has entered a crucial new part, with environmental plaintiffs and the Trump administration heading towards a pivotal courtroom showdown. Tomorrow marks the deadline for authorized briefs in what might turn into some of the consequential rulings for Pacific Northwest salmon and steelhead in years.

The intensified litigation follows President Trump’s June 12, 2025 revocation of a Biden-era Memorandum of Understanding (MOU) that had paused the lawsuit for as much as 10 years. The settlement, generally known as the Resilient Columbia Basin Agreement, dedicated over $1 billion in federal funding towards salmon restoration and laid groundwork for the potential breaching of the 4 Decrease Snake River dams—Ice Harbor, Decrease Monumental, Little Goose, and Decrease Granite.

Emergency Measures Looked for Spring Migration

Earthjustice, representing a coalition of conservation teams, filed a preliminary injunction request in October 2025 asking U.S. District Court docket Choose Michael Simon to mandate emergency operational adjustments on the dams starting in March 2026. The requested measures embrace reducing reservoir ranges to minimal working swimming pools and growing water spill over the dams—permitting juvenile fish to go over the constructions reasonably than by generators that may kill or injure them.

The states of Oregon and Washington, together with the Nez Perce Tribe and the Confederated Tribes and Bands of the Yakama Nation, have filed briefs supporting the injunction request.

“When the Trump administration reneged on this fastidiously negotiated settlement—and provided no various plan to revive imperiled salmon and steelhead—we had no choice however to renew our longstanding litigation to guard endangered salmon,” mentioned Earthjustice Lawyer Amanda Goodin in an October court filing.

The litigation dates again to 2001, when the Nationwide Wildlife Federation and Oregon first sued federal businesses over dam operations that plaintiffs argue violate the Endangered Species Act.

Fish Populations at Crucial Ranges

The urgency behind the authorized push is underscored by alarming inhabitants knowledge. In line with the Nez Perce Tribe’s Fisheries Resources Management department, six Snake River steelhead populations—27% of the species’ complete quantity—at the moment are on the “crucial listing,” that means they’re under extinction thresholds or quickly approaching them. Ten Snake River spring/summer season Chinook populations face comparable dire circumstances.

In 2025, only 14 wild Snake River sockeye salmon efficiently returned to their spawning grounds in central Idaho—a stark illustration of how far these populations have fallen since being listed as endangered.

Summer season steelhead returns have been depressed for practically a decade. The 2025 forecast predicted simply 25,790 steelhead returning to Decrease Granite Dam—roughly one-third of the earlier yr’s returns.

“The fish are something however wholesome,” mentioned Jay Hesse, Director of Organic Companies for the Nez Perce Division of Fisheries Assets Administration, noting that claims of enhancing salmon numbers typically depend on hatchery fish whereas obscuring the collapse of untamed populations.

Trade Teams Push Again

The proposed injunction has drawn fierce opposition from navigation, agricultural, and energy pursuits. More than 30 opposing briefs had been filed in federal court docket by December 2025, warning that the requested adjustments would threaten financial stability all through the Pacific Northwest.

The Pacific Northwest Waterways Association argues the proposed measures might threaten navigation security and river system reliability. The 4 dams keep a navigable waterway that handles roughly 10% of all U.S. wheat exports.

NOAA Fisheries filed testimony suggesting the proposed measures would possibly really improve—not lower—the chance of salmon populations falling under extinction thresholds in comparison with present operations.

“Our electrical grid is below unprecedented pressure, this movement dangers plunging our area into disaster,” mentioned Kurt Miller, CEO and government director of the Northwest Public Energy Affiliation.

Vitality consultants estimate the proposed operational adjustments would value the area $152 million to $169 million in 2026 to interchange misplaced hydroelectric capability and would lead to elevated carbon emissions as pure fuel services compensate for decreased dam output.

The Trump Administration’s Place

President Trump’s June 2025 presidential memorandum, titled “Stopping Radical Environmentalism to Generate Energy for the Columbia River Basin,” characterised the Biden-era settlement as inserting “misplaced issues about local weather change” and “equitable remedy for fish” above nationwide vitality wants.

U.S. Vitality Secretary Chris Wright visited Ice Harbor Dam in December 2025, emphasizing the administration’s dedication to sustaining the dams. The 4 services present roughly 3,000 megawatts of hydroelectric producing capability—sufficient to energy an estimated 2.5 million properties, based on the administration.

“That’s an vitality subtraction coverage and the Trump administration, we’re about vitality addition,” Wright mentioned of the earlier administration’s method.

Federal businesses at the moment are opposing the preliminary injunction, with the Division of Justice submitting briefs arguing towards the requested operational adjustments.

What Occurs Subsequent

Choose Simon is expected to hear arguments on the preliminary injunction by February, with a ruling doubtlessly coming quickly after. If granted, the injunction might mandate important adjustments to river operations as early as this spring, affecting the 2026 juvenile salmon migration season.

For anglers and fishing communities, the stakes prolong past the courtroom. The litigation’s final result will form river flows and fish passage situations for what scientists warn are already severely depleted runs. Trout Unlimited has known as the present scenario “a few of our worst returns on report for each salmon and steelhead.”

In the meantime, winter fishing on close by waters continues. Current stories from the South Fork of the Snake River point out productive fishing for resident trout utilizing midge and nymph patterns, providing a minimum of some solace for native anglers because the authorized battle unfolds.

The case, Nationwide Wildlife Federation v. Nationwide Marine Fisheries Service, has been ongoing for practically 25 years. Throughout that point, federal courts have declared unlawful six totally different federal dam administration plans, but businesses haven’t produced operations that adequately shield salmon to plaintiffs’ satisfaction.

Because the January 22 deadline for briefs arrives, the Pacific Northwest as soon as once more finds itself at a crossroads—balancing the financial advantages of hydropower and navigation towards treaty obligations and the survival of fish populations which have sustained the area’s Indigenous peoples, ecosystems, and fishing communities for millennia.