Nearly 35% of the bridges in San Francisco County have been deemed "structurally deficient", says a new report from Transportation for America. With such a high percentage of crumbling bridges and elevated roadways, that makes San Francisco County the worst in the state for driving over any street that is not paved directly on the ground.

Drivers might be pleased to learn that the Bay Area's flagship spans (the Golden Gate Bridge and the Bay Bridge, obviously) were determined to be in fine shape, but it's the smaller connectors, ramps and overpasses that we should be worried about.

As the Examiner explains, some of the sloppiest bridges are the Highway 101 Central Viaduct, the Third Street Bridge by McCovey Cove at AT&T park and the 13th and Folsom offramp. iPad newspaper The Daily points out that 15.6 million vehicles cross hail mary-inducing bridges in the Bay Area every day. Out of the top 10 cities in the U.S, population-wise, only New York City has more drivers crossing shaky spans every day.

[SFEx]
[TheDaily]