H.R. 2073 (119th)Bill Overview

Defending our Dams Act

Water Resources Development|Dams and canalsWashington State
Cosponsors
Support
Republican
Introduced
Mar 11, 2025
Discussions
Bill Text
Current stageCommittee

Subcommittee Hearings Held

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

The bill bars use of federal funds to allow, lead to, or study breaching or functionally altering the four Lower Snake River dams, including studies of power, flood control, or navigation replacements and dam-removal technical assistance. It also forbids spillage operations at those dams unless approved jointly by the Secretary of the Army and the Bonneville Power Administration Administrator, who must consider Columbia River System operations.

Why people may split

Progressives emphasize lost opportunities for salmon recovery studies

Watch point

Relative to its intended legislative type, this bill establishes clear, narrow substantive prohibitions and assigns responsible agencies, but it includes limited procedural detail, no fiscal analysis or appropriations language, scant treatment of exceptions or emergencies, and minimal oversight or accountability provisions.

The bill bars use of federal funds to allow, lead to, or study breaching or functionally altering the four Lower Snake River dams, including studies of power, flood control, or navigation replacements and dam-removal technical assistance.

It also forbids spillage operations at those dams unless approved jointly by the Secretary of the Army and the Bonneville Power Administration Administrator, who must consider Columbia River System operations.

The dams are defined as Ice Harbor, Lower Monumental, Little Goose, and Lower Granite in Washington.

Passage45/100

Content is narrow and administratively clear, aiding House prospects, but Senate obstacles and stakeholder controversy reduce overall likelihood.

CredibilityPartially aligned

Relative to its intended legislative type, this bill establishes clear, narrow substantive prohibitions and assigns responsible agencies, but it includes limited procedural detail, no fiscal analysis or appropriations language, scant treatment of exceptions or emergencies, and minimal oversight or accountability provisions.

Contention70/100

Progressives emphasize lost opportunities for salmon recovery studies

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
CitiesFederal agencies

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • CitiesPreserves hydropower generation and electricity reliability by blocking studies or actions that could lead to dam remov…
  • Potential benefitProtects inland navigation and barge shipping that support regional agriculture and commerce.
  • Potential benefitMaintains jobs in dam operations, power generation, and river-dependent industries by preventing structural alteration…
Likely burdened
  • Federal agenciesLimits federal study of removal options that proponents say are needed for salmon population recovery.
  • Potential burdenMay hinder spill operations used to improve juvenile fish survival without timely joint approvals.
  • Federal agenciesCould constrain federal compliance flexibility with endangered species and tribal treaty obligations.
03 · Why people split

Why the argument around this bill splits.

Progressives emphasize lost opportunities for salmon recovery studies
Progressive15%

Likely opposes the bill because it forecloses scientific study and options for restoring salmon runs and river ecosystems.

Sees the funding ban and spillage restrictions as limiting environmental management and tribal remedy options.

Likely resistant
Centrist45%

Cautious and mixed: supports protecting critical infrastructure until evidence justifies change, but worries a blanket prohibition on studies and assistance is imprudent.

Would favor procedural safeguards and independent analyses.

Split reaction
Conservative85%

Likely supports the bill as a protection of hydropower, navigation, and local economies, and as a check on efforts to remove or alter dams.

Views spillage limits as restraining operations that harm power reliability.

Leans supportive
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood45/100

Content is narrow and administratively clear, aiding House prospects, but Senate obstacles and stakeholder controversy reduce overall likelihood.

Scope and complexity
24%
Scopenarrow
24%
Complexitylow
Why this could stall
  • Degree of organized stakeholder opposition (tribes, environmental groups)
  • Whether bill becomes attachment to larger must-pass legislation
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Progressives emphasize lost opportunities for salmon recovery studies

Content is narrow and administratively clear, aiding House prospects, but Senate obstacles and stakeholder controversy reduce overall likel…

Unlocked analysis

Relative to its intended legislative type, this bill establishes clear, narrow substantive prohibitions and assigns responsible agencies, but it includes limited procedural detail, no fiscal analysis or appropriations l…

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
Open full analysis