Construction of the Long Thanh interchange began in July 2023 to link three major routes: the HCMC–Long Thanh–Dau Giay Expressway, which links HCMC and Dong Nai, and the Bien Hoa–Vung Tau Expressway, which links Dong Nai and Vung Tau beach town, and the T2 road leading to Long Thanh International Airport in Dong Nai.
Because the interchange is part of a massive transport complex, its construction is split between two simultaneous projects.
The first portion falls under Component Project 2 of the Bien Hoa–Vung Tau Expressway. The second portion belongs to the T1–T2 connecting road project, which is overseen by Component Project 3 of the Long Thanh Airport, Vietnam’s largest airport project.
Running parallel to the Bien Hoa–Vung Tau Expressway, the T2 road serves as a vital connector to the HCMC–Long Thanh–Dau Giay Expressway.
Under the new traffic plan, the road facilitates seamless two-way transit between the major routes.
Vehicles traveling from the Bien Hoa–Vung Tau Expressway toward Ho Chi Minh City can simply turn right onto the T2 road to merge onto the HCMC-bound expressway.
Conversely, drivers leaving Ho Chi Minh City center for Vung Tau will use the T2 road to access the Bien Hoa–Vung Tau Expressway.
The interchange’s location amid local irrigation lakes required contractors to construct multiple bridge sections directly over the water.
On May 18, the middle section of the interchange, part of the Bien Hoa–Vung Tau Expressway, temporarily opened to traffic along its full route.
Currently, access is restricted to cars with fewer than nine seats. Flanking this central expressway section are the two T2 access roads leading to Long Thanh International Airport.
As some parts of the interchange are still under construction, several ramps and connecting routes between the two expressways remain closed to ensure safety.
At night, newly installed lighting systems illuminate the entire Long Thanh interchange.
This massive transport complex connects several vital routes, including the nearly 54-kilometer Bien Hoa–Vung Tau Expressway, which is expected to finally ease pressure on the heavily congested National Highway 51.
It also links to the 55-kilometer HCMC–Long Thanh–Dau Giay Expressway, a crucial artery connecting Ho Chi Minh City with the northern provinces.
Ultimately, these infrastructure upgrades all serve a single major destination: Long Thanh International Airport. Set to become Vietnam’s largest aviation hub, the airport is expected to be completed by the end of 2026.
