The Underline is a 10-mile-long multimodal corridor that stretches from the Miami River in Brickell to the Dadeland South Metrorail station. The corridor reimagines the space underneath Miami’s elevated Metrorail tracks. Once completed, The Underline will create more than 120 acres of open space with restored natural habitats; improved pedestrian and bicycle pathways that connect directly with public transportation; and public open spaces with various active, passive, and cultural programs and public art installations.

Brickell Backyard is the first phase of The Underline, located at the northernmost portion. This section starts at the Miami River and extends half a mile south to SW 13th Street. The design is organized by a procession of rooms—the River Room, Gym, Promenade, and Oolite Room—each articulated with a unique program that responds to its immediate context and to the needs of the local community.

Phase 3 is currently in design, with construction expected to begin in late 2023.