Among completed projects, Bechtel finished a 10.8 miles (17.4 km) four-lane motorway in Kosovo a year ahead of schedule in November 2013.[114] The unit completed the Catalina Solar photovoltaic generating facility and the construction of the California Valley Solar Ranch in 2013.[115][116] Bechtel also completed the Hanna Region Transmission Development, a power transmission project in Canada, which included 1,200 new transmission towers and 85 miles (137 km) of transmission lines in 2013.[117] Bechtel completed Phase I of an extension of the Dulles Corridor Metrorail in Northern Virginia[82][118] and completed the Hamad International Airport in Doha, Qatar, in 2014.[58][119] Bechtel also completed the world's largest solar thermal project, the Ivanpah Solar Electric Generating System in California, which began producing power in February 2014.[120][121]