Seven air carriers currently serve Richmond International Airport with non-stop flights to 22 destinations and connecting flights to destinations worldwide. Nearly 2.5 million passengers used Richmond International Airport in 2004 and that number continues to grow, as does the amount of air service provided. To help accommodate the current and proposed increase in passengers and air service, Richmond International Airport has embarked on a major expansion program. To date, expansion efforts at Richmond International Airport have increased the total number of gates, increased parking spaces to 8,000 and created a new terminal roadway and air traffic control tower. Upcoming projects at the Richmond International Airport include the start of construction on the new terminal building featuring upper level departures and lower level arrivals, the construction of a central utility plant and the widening of the security check points. Construction on the new two-level terminal is set for completion in spring 2007.