A judge has ruled that a federal agency doesn't have to revise its plans for how it operates dams along the Chattahoochee and Flint rivers, another win for Georgia in its struggles with Florida and Alabama over the water that flows into the Apalachicola River.

Environmental groups and the state of Alabama had sued the U.S. Army Corps of Engineers in 2017, saying the agency's plans held too much water in reservoirs in the Apalachicola-Chattahoochee-Flint basin and that it should release more for hydropower and wildlife.