Mill City Museum opens
Mill Ruins Park opens.
St. Anthony Falls Heritage Trail opens.
Stone Arch Bridge opens to pedestrian traffic.
Abandoned Washburn A Mill gutted by fire.
Washburn A Mill is designated a National Historic Landmark.
St. Anthony Falls Historic District including the James J. Hill Stone Arch Bridge, Pillsbury A Mill and the Washburn A Mill are listed on the National Register of Historic Places.
Washburn A mill closes.
Second lock and dam constructed.
Northern States Power becomes the sole licensee of waterpower at the falls.
Lock and dam construction opens the upper river to navigation.
1930 to 1950 Many flour mills are dismantled; bridges and railroad trestles are cleared from the district.
Fire damages south side of the Washburn A Mill.
Saw milling above the falls draws to a close.
The Lower Dam hydroelectric plant is built and leased to the Twin City Rapid Transit Company.
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