Crane working on new Bay Bridge span falls - Article Photos 2/4

Investigators approach the scene where a crane overturned onto a barge and into San Francisco Bay, seen from Clipper Cove on Treasure Island Thursday, Feb. 21, 2013, in San Francisco. A crane tipped over while working on the new eastern span of the San Francisco-Oakland Bay Bridge on Thursday afternoon, but there were no injuries and nothing leaked into the bay, authorities said. (AP Photo/Ben Margot)