The Federal Maritime Commission is probing concerns raised by trucking companies that a Port of Philadelphia terminal operator is receiving favorable treatment from a state agency.

The Port of Philadelphia will have less truck congestion and more capacity thanks to a $20.3 million federal infrastructure grant award.

Pennsylvania Gov. Tom Wolf announced a $300 million capital investment to existing terminals and operations at the Philadelphia port aimed at doubling container cargo capacity and creating about 2,000 more direct port jobs.