The Civil Aviation Authority is to sign a U.S. $ 1.5 billion agreement with Bechtel-Saudi Arabia and Dar Al-Riyadh for the expansion of the King Abdulaziz International Airport in Jeddah. Work will start in the second quarter of next year and the expansion will be completed by fall 2010. The project includes construction of two new terminals, one for international and one for domestic passengers, and extension of the existing Southern terminal, for international and VIP use, with passageways connecting the terminals. A new two-story car park will accommodate 5,700 cars, and 25 passenger bridges will connect departure and arrival lounges directly with aircraft. Distinguishing features of the architectural style will be crescent-shaped roofs and internal gardens. By the end of the project, the airport's annual passenger capacity will have been increased from 13 million to 21 million.