Local 10 News reporter Derek Shore spoke to a state transportation engineer, who said he has never seen anything like Monday's crash in about 30 years.
Despite the fact that the guardrail the driver crashed into was built in the 1960s, Local 10 learned that the state will not be modernizing the guardrail.
It was late Monday afternoon when the truck crashed through the guardrail on the Seventh Street exit ramp from southbound Interstate 95 and landed in the parking lot of Jose Marti Park.
Miami Department of Fire-Rescue Capt. Ignatius Carroll said the truck fell more than 100 feet to the ground.
The driver, Kaseem Smith, was ejected and taken to Jackson Memorial Hospital's Ryder Trauma Center, where he is listed in critical condition.
Jose Marti Park was open at the time, but no other injuries were reported.
Fernandez said it's unclear what caused Smith to crash, but said FDOT will be looking at speed and the angle of the crash.
Shore learned that the overpass was built in 1969 and had it been built today, stronger guardrails would be required.
But despite the crash, the state will only be fixing, not updating the guardrails on the Seventh Street exit since the state is only required to update guardrails if they are expanding or significantly changing the road.
FDOT officials say they regularly inspect all overpasses and guardrails. Monday's crash remains under investigation.