A new assessment by South Carolina's transportation secretary said the state needs $30 billion in the next 20 years.
The money would go to fixing highways, bridges and mass transit systems.
Without the new revenue, the secretary said his department will have to deal with the deteriorating highway system.
Lawmakers said they are not sure when they will be able to take up the issue.
SC transportation secretary says state needs $30 billion
No arrests made after man shot to death inside west Charlotte bar
Police ram suspect's car after hour-long chase in Gastonia
Lake goers warned about dangers of electric shock drowning
Trump doesn't hold Ramadan dinner, breaking White House tradition