The Candaba Viaduct (also known as Pulilan–Apalit Bridge) is a 5-kilometer (3.1 mi) viaduct carrying the North Luzon Expressway (NLEX) across the Candaba Swamp in the provinces of Bulacan and Pampanga, Philippines consisting of six lanes (three northbound and three southbound). In 1976, it surpassed the San Juanico Bridge (finished 1973) to become the longest bridge in the Philippines. In 2022, it was surpassed by the 8.9 km Cebu–Cordova Link Expressway (CCLEX) and the viaduct is now the second longest bridge in the country. The viaduct was designed by Aas-Jakobsen and built by Construction Development Corporation of the Philippines (CDCP, later renamed to Philippine National Construction Corporation) as part of construction of the whole NLEX.