Construction has begun at Will Rogers World Airport to expand the terminal and add four gates.

Passengers and visitors to the airport will have 150,000 additional square feet once the project is finished. Airport officials said Friday they expect the work to be complete in two years.

The $89 million project is the final phase of a study done in the late 1990s, said Oklahoma City Airports Director Mark Kranenburg. The last expansion in 2006 focused on aesthetics and functional areas of the terminal by streamlining the concourse and increasing the size of gate areas.

"In the end, the square footage in the concourse was doubled. However, Phase Two only netted the airport one new gate," Kranenburg said.

Read the full article in The Oklahoman.