ST. PETERSBURG, Fla. — A large truck traveling on 6th Street South hit the Interstate 175 overpass Monday morning and caused concrete to fall, police said.

The Florida Department of Transportation was still at the scene Monday afternoon assessing the damage.

Until then, the roads are closed to all traffic on the overpass and under it. Two beams will need to be replaced before it's safe to drive through again.

The truck was too big for the overpass, police said.

"Somehow the hydraulics on it caused the back to raise and hit the overpass," said St. Petersburg Police Department spokeswoman Yolanda Fernandez.

Police closed 6th Street South in both directions from 5th Avenue South to 4th Avenue South.

Cynthia Ingraham, who lives out of town, was here to visit a friend at Bayfront Hospital and got a first-hand look at the damage.

"I think it looks pretty bad," she said. "I think that's a pretty significant crash right there. And I imagine it's going to take them awhile to fix the construction on that to make it safe again."

The FDOT thinks it could be up to three weeks to replace the beams.

The lane directly over the damage will remain closed — as well 6th Street South underneath — until all the repairs are made.

It will cost about $300,000 to complete the work.

No injuries were reported in the incident.