 The company turned a moderate profit until 1902, when the Good Friday Flood destroyed its toll bridge and powerhouse, and the mill was forced to close (the mill and the town's "spring castle" are still standing, however).By 1900, the rise of major industry in Nashville brought an increased demand for electricity.In 1901, Nashville entrepreneur Arthur Dyer formed the Great Falls Power Company and purchased land on the north side of the gorge with plans to build a dam.