A GIF image showing a map of Bainbridge Island transmission infrastructure. Three substations: Port Madison Substation constructed in 1980 in northern Bainbridge, Winslow Substation constructed in 1960 near Winslow, and Murden Cove Substation in eastern Bainbridge. One transmission line runs across Agate Pass to Port Madison Substation.

A second transmission line connects Port Madison Substation to Winslow Substation, and a third transmission line connects Port Madison substation to Murden Cove substation. No transmission lines connect Winslow Substation to Murden Cove substation, making the infrastructure system look like an upside-down Y instead of a loop.

A tree falls on the transmission line connecting Port Madison Substation to Winslow Substation. This then leaves the southern third of the island without electricity.

A tree then falls on the transmission line connecting Port Madison Substation to Murden Cove Substation, leaving the eastern third of the island without electricity.