TREASURE ISLAND — The Treasure Island drawbridge is working again, but why one of its cylinders needs to be replaced is still a mystery, city officials say.
"We need to consult with the manufacturer, who is in Alabama," said City Manager Reid Silverboard. "It could be an easy fix or a complicated fix. That's what we have to find out."
The eastern side of the 7-year-old bridge wouldn't lower completely Feb. 23, holding up traffic for hours.
Silverboard said all 16 cylinders operating in the bridge — four cylinders in each span — were checked and one was found to be defective.
Operation of the drawbridge will continue, he said, "because it is designed to operate with three cylinders."
"It will take engineers a while to figure out why it failed," Silverboard said. He said it is unclear how much it could cost.
Hal Bruce, the Treasure Island transportation director, had said earlier that the bridge's cylinders should last 20 to 25 years.
"What happened, we don't know. This should not have happened," he said. He estimated that 20,000 vehicles a day drive over the bridge.