Gov. Rick Scott said federal surveyors will determine in the next two days if the river will crest higher than the interstate bridge.
"If we have to close that, it will be a pretty big detour," Scott said. "Everybody who travels down to South Florida follows that so we're going to keep everyone informed when we make that decision.
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"We're going to monitor that and we're going to do what ever is safe."
The Santa Fe River has risen 15 feet over the past 36 hours after Hurricane Irma dumped heavy rain across North Florida, the state Department of Transportation reported around midday Wednesday when officials announced the looming danger.Read more at USA Today