Who goes there? On the Bay Bridge, the new troll will want to know. BayBridgeInfo hide caption toggle caption BayBridgeInfo The Two-Way Bay Area's New Span Truly Is A Troll Bridge September 3, 2013 After the 1989 earthquake that shook the region, the Bay Bridge had been "protected" by a metal troll welded to the span. Some had worried that the new Bay Bridge wouldn't have its own troll. To the relief of many, it will.