Crews are demolishing a nearly century-old dam as part of a broader project that's expected to change the landscape of the Flint River in downtown Flint.
The Flint Journal reports demolition of the Hamilton Dam started on Tuesday morning.
The Genesee County Parks Commission says the work on the dam is expected to take several days.
The roughly $3.1 million demolition was initially scheduled for 2017, but it was moved back because the city needed to wait for Consumers Energy to finish dredging and capping a section of the riverbed where manufactured gas was once produced.
The Hamilton Dam was built in 1920.
The demolition is part of the Flint Riverfront Restoration Project, which calls for adding water-based recreational opportunities, park improvements, ecosystem restoration and improved stormwater and flood control.