The Underline will transform the land underneath the southern half of Miami’s Metrorail into a 10-mile linear park, urban trail, and public art destination.

Currently in the construction, procurement and design phases, The Underline will serve as a gateway to adjacent communities by tapping into the unique identities of each adjoining neighborhood and by providing distinctive landscaping, amenities, art and programs relevant to each community. The project will also offer improved access north, south, east, and west, as well as an off-road safe haven to improve walking and biking safety. Inspired by South Florida and the Miami region, The Underline will become a significant social and civic spine for the area that will foster community, enhance value, and encourage recreation and healthy living. It will facilitate connectivity and social exchange, connecting people to their surroundings and each other.

Project Details

Infrastructure Type Railway
Status Open / Ongoing
Opening Phase 1: Opened March 2021
Size 120 acres, 10 miles
Design Team James Corner Field Operations

Managed by The Underline Conservancy with support from Friends of The Underline and Miami-Dade County.

Project Leader Meg Daly

Steering Committee Member

Latest News / The Underline

Medium / January 27, 2022

Establishing a Nexus for Community

The past year has served to reconfirm the importance of a robust, nature-rich public realm that is welcoming to all. From health and wellbeing to environmental and economic resiliency, our parks, trails, libraries and community centers are critical civic infrastructure that provide multi-faceted benefits for communities. Today, the eighth in our series of photo essays reflecting on public space efforts in cities across the country, features The Underline in Miami.

Harvard Social Impact Review / December 15, 2021

Escaping Infrastructure’s Shadow Puppets: Lessons From Equitably Repurposing Public Spaces

Washington has a consensus: American infrastructure is overdue for capital improvements and maintenance. The most fervent debates on this topic have focused on how much funding should be allocated. But the most important discussion, even when it comes to hard infrastructure (e.g., rail, bridges, roads, and sidewalks), should be about how funding should be spent.