STUART, Fla. – A Florida bridge has been closed because it is at “risk of an imminent collapse,” according to TCPalm.com. All vessels are required to keep clear on the new Roosevelt Bridge until further notice, due to the risk of imminent collapse break,” the message blared. “What we do know is some concrete fell from underneath the Roosevelt Bridge and there were concerns about the bridge and it’s safety at that time. "The Roosevelt Bridge southbound lanes will be closed until further notice to complete necessary repairs. "Northbound lanes are split to accommodate one northbound lane and one southbound traffic lane.