The Harbor Link Interchange,[1] also known as the Mindanao Interchange and North Luzon Expressway Harbor Link Interchange (NLEX Harbor Link Interchange) and formerly known as the Smart Connect Interchange, is a two-level cloverleaf interchange in Valenzuela, Metro Manila, Philippines which serves as the junction of North Luzon Expressway (NLEX) between its main segment and its Harbor Link project, particularly Segments 8.1 and 9, components of Circumferential Road 5 (C-5). Built as part of the 2.7-kilometer (1.7 mi) NLEX Segment 8.1 of the Harbor Link project extending the expressway to Mindanao Avenue,[2] which has since been incorporated into the C-5 system, it is the Philippines' largest cloverleaf interchange in terms of land area.[3]
Construction of NLEX Segment 8.1, including the present-day Harbor Link Interchange on the same proposed site, broke ground on April 2, 2009,[7] with actual construction work beginning 19 days later.[8]
Although the interchange was opened to traffic in 2010, it originally only carried traffic between Valenzuela and eastern Metro Manila via NLEX Segment 8.1, with the westbound ramps closed to traffic. Work on a connection between the interchange and western Metro Manila would only be realized with the construction of the 2.42-kilometer (1.50 mi) NLEX Segment 9 between the interchange and the MacArthur Highway in Karuhatan, which was opened on March 19, 2015.[11] A further extension from Karuhatan to the Port of Manila, known as NLEX Segment 10 or NLEX Harbor Link, was opened gradually from February 28, 2019, to June 15, 2020.[12][13]
On November 16, 2012,[14]Smart Communications bought the naming rights to the interchange, calling it Smart Connect Interchange until circa 2021.[15][16]