A key concrete support truss in the doomed Florida International University pedestrian bridge developed worrisome cracks 10 days before the structure was lifted into place over the Tamiami Trail, photographs and an internal email unintentionally released by the school show.
The documents, released in response to public records requests from the Miami Herald, show that FIU's construction and engineering team discovered potentially problematic cracks in the bridge earlier than officials have previously acknowledged.
The cracks were found in late February at the base of a diagonal support member at the north end of the span. Independent engineers have identified that as the point where the structure shattered on March 15 while under construction, sending the 950-ton bridge crashing onto the roadway below and claiming six lives.
Read more at our news partner, the Miami Herald.