The East-West Highway (Arabic: الطريق السيار شرق-غرب), also referred to as the A1 Highway, is a motorway in Algeria. The project of a six-lane highway across Algeria was launched in 2007, and is claimed to be one of the largest public works projects in the world.^[1]

The US$11 billion project is being undertaken by a complex consortium of international suppliers, and there have been concerns about corruption, waste, and delays.^[2][3] The Central and Western sections of the road were built by a consortium of China Railway Construction Corporation and CITIC while the Eastern section was constructed by a Japanese consortium of Kajima Corporation, Nishimatsu Construction Company, Itochu Corporation, Hazama Corporation and Taisei Corporation.^[4]

When completed, the highway will run 1,216 km (756 mi) from the Moroccan border to the Tunisian border, connecting Algeria's major coastal cities.^[5] Other hub roads are under construction as well, thus providing a link to other important cities of the inner part of the country. The East-West highway was the first stage of Algeria's five-year plan, which included spending US$40.9 billion on modernization of road networks and increasing ports' capacity.