A key segment of the M-Path running beneath Miami-Dade's Metrorail guideway through Coral Gables is closed to cyclists and pedestrians while construction crews work to extend The Underline's celebrated linear park network into the city — a project expected to keep the corridor offline through Summer 2026.
The closure affects Segment 6 of the M-Path, the longstanding multi-use trail that has long threaded beneath the elevated Metrorail tracks. Work is part of The Underline Phase 3, the latest chapter in Miami-Dade County's ongoing effort to transform the underutilized right-of-way below the transit corridor into a continuous, amenity-rich greenway stretching from Brickell southward through the suburbs.
Construction crews are installing new bicycle and pedestrian trail surfaces, along with landscaping, lighting, seating, and other public amenities designed to match the standard set by earlier completed phases of the project. When finished, the improved segment will deliver a more comfortable, connected, and visually cohesive route for commuters, recreational riders, and walkers who rely on the corridor as an active-transportation alternative to South Florida's car-dominated roadways.
For Coral Gables, the investment represents a meaningful expansion of the urban trail network into a city known for its pedestrian-friendly boulevards and tree-lined streetscapes. Linking Segment 6 to the broader Underline system will sharpen the connection between neighborhood streets and the Metrorail spine, giving residents a more seamless option to reach transit stations on foot or by bike without competing with vehicle traffic.
The timing of the closure — spanning the summer months and well into 2026 — is notable for regular M-Path users who depend on the route for daily commutes or weekend recreation. Alternate routes parallel to the corridor exist, though they typically require navigating surface streets rather than the dedicated trail environment the M-Path provides.
Miami-Dade County is directing riders and pedestrians seeking updates on construction progress, detour information, or project timelines to reach out directly via email at TheUnderline@miamidade.gov.
The Underline project, managed in partnership between Miami-Dade County and the nonprofit Friends of The Underline, has drawn national attention as a model for activating urban transit infrastructure as public space. Earlier phases transformed sections of the corridor near Brickell and South Miami into vibrant community destinations featuring fitness zones, public art installations, native plantings, and event programming.
Phase 3's push into Coral Gables signals that ambition is far from exhausted, with planners continuing to stitch together a greenway that could ultimately serve as one of South Florida's most significant active-transportation assets.
Original project reporting and construction details were first published by the City of Coral Gables.