According to officials, the Santa Fe River has risen 15 feet in the past 36 hours due to heavy rain fall.
While the assessment is completed, the FDOT is asking drivers to avoid I-75 in both directions north of Gainesville.
The bridge crosses the Sante Fe River on the northern border of Alachua County and soon become an issue.
Mirti said he's unsure of how long I-75 near the bridge would be closed if the water does rise to a threatening level.
Rising rivers could shut down part of Interstate 75 in north Florida, the Florida Highway Patrol says.
State transportation officials are monitoring the river's flood stage to see if it impacts bridges along the interstate as well as on nearby state roads. It's posted one detour around the Sante Fe River Bridge, but said USA 27, US 41, S.R. 47 and possibly US 121 bridges may also be affected. They stress that any Floridian planning on traveling to Central or Southern Florida should consider traveling southbound on I-95.
FHP has published the above detour map in the event that I-75 closes.
FDOT says the river is expected to crest at historic and unprecedented levels.
As always, use www.FL511.com to get up-to-date information on this and other road closures.