Miami-Dade County’s plan to run commuter trains between downtown Miami and Aventura has cleared a major federal hurdle, with the Federal Transit Administration advancing the Northeast Corridor project into its engineering phase and making a preliminary commitment of $389.5 million, Trains magazine reported.
The 13.5-mile line would operate on the Florida East Coast Railway corridor — the same tracks used by Brightline — connecting the downtown MiamiCentral station to Aventura with five intermediate stations. The project carries a total estimated cost of $927.3 million, with $337.9 million from Miami-Dade County and $200 million from the state of Florida alongside the federal share.
The corridor is a pillar of the county’s SMART transit expansion program, which targets rapid transit along six major travel corridors. County officials say the Northeast Corridor line would serve some of the region’s densest and fastest-growing neighborhoods, linking communities including Wynwood and Little Haiti to downtown and to the county’s broader rail network.
Design Milestones and a 2032 Target
The project timeline released early this year called for a 60% design submittal in May 2026, with 100% plans due in April 2027, according to Trains. County officials expect the line to be fully operational by 2032.
Planners project the service would eliminate nearly 8,000 daily car trips from one of the county’s most congested travel sheds, while connecting key campuses and job centers along the Biscayne corridor, student newspaper PantherNOW reported, including Florida International University’s Biscayne Bay campus area at the line’s northern reaches.
The project’s fate is intertwined with Brightline, whose right-of-way the county trains would share and whose separate “commuter” bonds are tied to commuter rail rights in the region. Brightline’s ongoing debt restructuring negotiations have drawn close attention from transit planners, though the county’s federal engineering milestone signals Washington’s continued confidence in the corridor.
For northeast Miami-Dade commuters, the promise is straightforward: a one-seat rail ride from Aventura to downtown that bypasses Biscayne Boulevard and I-95 congestion entirely. The county already opened the Aventura station, which Brightline serves today; the Northeast Corridor project would layer frequent commuter service on top of it, extending the reach of Metrorail-era transit to a part of the county that has waited decades for it.


