KBR has signed a $185m contract to extend its role as program manager of Qatar's expressway program by three years.
KBR is working closely with Qatar's public works authority Ashghal to create a strategic network of roads to support the goals of Qatar's National Vision 2030.
Road networks are being created to link key areas around the country, including industrial areas, airports, ports, residential, business and tourism districts.
KBR was first appointed in 2010 to oversee the project which includes 40 major projects, 900 km of new and upgraded roads, and 348 bridges and underpasses.
New east–west and north–south links are being created throughout the country and the program will also introduce facilities for cyclists and pedestrians and create a new orbital truck route around Doha.