# Great Lakes invasive carp barrier project > Live situation record from CLSTR: https://clstr.news/situations/great-lakes-invasive-carp-barrier-project > Updated: 2026-09-22T22:00:40.000Z. Sources: 7. Developments: 2. The Brandon Road Interbasin Project, a state-federal initiative designed to prevent invasive carp from entering the Great Lakes, has faced recent administrative delays. In early September, the Trump administration lifted a stop-work order on the project near Joliet, Illinois, following requests from Michigan Governor Gretchen Whitmer and Illinois Governor JB Pritzker. The pause, previously implemented by the U.S. Army Corps of Engineers for administrative review, was lifted amid concerns regarding sightings of juvenile silver carp near Lake Michigan. By late September, Democratic senators from Illinois, Michigan, and Wisconsin pressured the administration to prevent further delays to the $1.15 billion project. Lawmakers expressed concern that repeated pauses could increase total costs and jeopardize the regional economy. The proposed defense system at the Brandon Road Lock and Dam is intended to utilize sonic blasts, bubble walls, an electric barrier, and updated flushing mechanisms to protect Lake Michigan. ## Timeline ### 2026-09-22: Great Lakes senators urge end to invasive carp barrier delays Great Lakes senators are calling on the Trump administration to end delays to a $1.15 billion barrier project designed to protect Lake Michigan from invasive carp. 2 sources. https://clstr.news/cluster/great-lakes-senators-urge-end-to-invasive-carp-barrier-delays ### 2026-09-03: Trump administration lifts stop-work order on Great Lakes carp barrier The Trump administration lifted a stop-work order on a critical project to prevent invasive carp from reaching the Great Lakes, following a direct call from Michigan Governor Gretchen Whitmer. 5 sources. https://clstr.news/cluster/trump-administration-lifts-stop-work-order-on-great-lakes-carp-barrier --- Cite as: Great Lakes invasive carp barrier project. CLSTR, https://clstr.news/situations/great-lakes-invasive-carp-barrier-project