Bay Bridge Expansion

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%28credit%3A%20Justin%20Sullivan%2FGetty%20Images%29%3Cbr%20%2F%3ECatwalks%20are%20seen%20hanging%20over%20the%20newly%20constructed%20eastern%20span%20of%20the%20%20Bay%20Bridge%20during%20a%20media%20tour%20of%20the%20self-anchored%20suspension%20span%20tower%20on%20August%2029%2C%202011.

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