page_title: South Luzon Expressway
section_title: History
hierarchical_section_title: South Luzon Expressway / History
caption_attribution_description: English: The South Luzon Expressway at Bicutan, Parañaque
context_page_description: The South Luzon Expressway, formerly known as the South Superhighway, Manila South Diversion Road, and Manila South Expressway, is a network of two expressways that connects Metro Manila to the provinces of the Calabarzon region in the Philippines. The first expressway is the Skyway, operated jointly by the Skyway Operation and Management Corporation and Citra Metro Manila Tollways Corporation. The second expressway, the South Luzon Tollway or Alabang–Calamba–Santo Tomas Expressway, is jointly operated by the South Luzon Tollway Corporation, a joint venture of the Philippine National Construction Corporation and the San Miguel Corporation-backed PT Citra Marga Nusaphala Persada Tbk group of Indonesia via the Manila Toll Expressway Systems, Inc.
  The expressway is a component of Expressway 2 of the Philippine expressway network and Radial Road 3 of Manila's arterial road network.
context_section_description: South Luzon Expressway was originally built during the late 1960s as South Diversion Road or South Superhighway as newer roads used to travel from and to Manila. South Superhighway was referred to as the Manila to Alabang segments that started in 1967 and was completed on December 16, 1969.
  In 1976, the expressway was extended by another 29 kilometers (18 mi) from Alabang up to Calamba, Laguna. The project included the 850-meter (0.53 mi) long viaduct which crosses over Alabang and is called Alabang Viaduct. This later on became the boundary when the PNCC decided to split SLEX into two concessions which renamed the Nichols to Alabang segment as the South Metro Manila Skyway System while the Alabang to Santo Tomas segment retained the South Luzon Expressway concession branding.
caption: SLEX near the original Alabang Toll Plaza, in 1976.
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