S 3743
Advanced toward a vote
Directs the Interior Department to study alternatives, including a thermal curtain or a selective water withdrawal system, for keeping invasive species out of water released from Glen Canyon Dam.
Official title: A bill to direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes.
Timeline each lane is a chamber; dates pull from congress.gov actions
Senate
Introduced
29-JAN-2026
Referred
29-JAN-2026
Approved by committee
10-JUN-2026
Reported
17-SEP-2026
On the calendar
17-SEP-2026
- Requires the Interior Secretary, acting through the Bureau of Reclamation, to complete a feasibility study within 18 months of enactment, consulting Energy, Fish and Wildlife Service, Geological Survey, Colorado River Basin States, and power contractors.
- Lists a thermal curtain or selective water withdrawal system as alternatives that may be studied, aimed at optimizing hydropower while preventing invasive species from passing through the dam.
- Requires a feasibility report with cost allocations to Colorado River Storage Project purposes and hydropower effects analyzed with the Western Area Power Administration, due 90 days after the study is completed.
- Allows the Secretary to begin design and construction of an alternative found feasible under reclamation laws, and sets the authority to expire 5 years after enactment.
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■ 1 R
1 Republican