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A sudden pause on construction of the Brandon Road barrier — a key defense meant to stop invasive carp from reaching the Great Lakes — was rescinded this week shortly after Michigan Governor Gretchen Whitmer phoned President Donald Trump. The abrupt reversal comes as state officials warn that carp have been detected unusually close to Lake Michigan, raising the stakes for the multi-state project.
Why the lift matters now
The decision to resume work affects an effort long billed as vital to protecting fisheries, drinking water and shoreline economies across the region. With juvenile carp found roughly 80 miles upstream of Lake Michigan, environmental managers say any delay increases the risk that these invasive fish could reach the lake.
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The Army Corps of Engineers had quietly halted activity on the project near Joliet, Illinois, in July without explaining the move. Hours after Whitmer’s call to the White House on Wednesday, Michigan officials were told the stop-work order was removed. The White House directed queries to the Corps; the agency has not provided immediate public comment.
What happened, in brief
- March: Whitmer pressed the administration to release federal funds for the Brandon Road Interbasin Project; the White House later signaled cooperation.
- July: The U.S. Army Corps suspended work on the site, citing an administrative review but offering few details.
- August: Illinois conservation officials reported dozens to hundreds of juvenile invasive carp about 80 miles from Lake Michigan — the furthest upstream detections since monitoring began.
- This week: After a call from Governor Whitmer to the president, the Corps allowed construction to resume.
Politics, access and the project’s future
The episode highlights how personal outreach to the president can move federal decisions in the current administration. Whitmer’s direct intervention — notable because she has been a vocal critic of Trump in the past — illustrates a pragmatic approach some governors are taking as the carp threat grows.
Illinois officials, however, said they learned of the lift from Michigan rather than directly from the federal government. Governor JB Pritzker’s office criticized the lack of communication, saying Illinois had not been briefed and questioning whether the administration was treating the Great Lakes as a shared priority.
Federal funding for Brandon Road has been substantial: the project has received hundreds of millions in recent appropriations, and planners from Illinois, Michigan and the federal government have designed a suite of physical and technological defenses in the Des Plaines River near Joliet to block carp from advancing into Lake Michigan.
Back-and-forth decisions on construction have left local officials and conservationists on edge. “The governor underscored the urgency of the moment,” Whitmer’s spokesperson said, noting the proximity of carp detections to the lake after months of halted work.
What to watch next
Key questions remain about timing and coordination:
- Will the Army Corps provide a public timeline for completing the next phase?
- How will Illinois and Michigan coordinate monitoring to detect any further upstream movement?
- Will federal agencies outline the criteria that triggered the prior administrative review?
Answers will matter to businesses, anglers and communities that depend on the Great Lakes, and to state officials who say stalled work raises long-term ecological and economic risks.
Associated Press reporter Will Weissert contributed to this report.
