I've made it to the bridge, talked to the bobby for the quest "Letter Of Transit". For the quest "Plassey Bridge", i have to repair the bridge. But the switch requires power. Where do i find the power source? Description says "I've got everything i need to make this bridge functional". Prior to my save, i've killed everyone on the bridge, searched the bobby and am stuck.
I've checked the page and nothing's listed about fixing the bridge.