bridge collapse in pittsburgh
The most likely cause of the collapse was the cracking of a concrete pad supporting a leg of the shoring towers. Top corporate headquarters moved out in the 1980s.
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The industrial base continued to expand through the 1960s but after 1970 foreign competition led to the collapse of the steel industry with massive layoffs and mill closures.
. Investigators from the National Bureau of Standards for the Occupational Safety and Health Administration OSHA discovered several errors that caused the collapse of the bridge section. The failure of the concrete pad built too thinly led to another finding. Though requiring a major collapse from the in-form Cincinnati Bengals 9-6 to win the division two consecutive victories in their last two games could see the Steelers sneak through as a wild card.
The population of the Pittsburgh metropolitan area is holding steady at 24 million. Installing an ice bridge on Lake Winnebago 5 dead in Milwaukee near 21st and Wright UW System president finalist Jay Rothman interviews with Wisconsin media. In 2007 the city lost its status as a major transportation hub.
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