The Underline will transform the land below Miami’s Metrorail into a 10-mile linear park and urban trail.


Our vision is to transform the underutilized land below Miami’s MetroRail, from the Miami River to Dadeland South Station, into an iconic linear park, world-class urban trail and living art destination.

The Underline will connect communities, improve pedestrian and bicyclist safety, create over a hundred acres of open space with restored natural habitats, encourage a healthy lifestyle, provide an easily accessible place to exercise, create a mobility corridor that integrates transit, car, biking and walking, provide a 10-mile canvas for artistic expression, attract development along US1, and generate significant economic impact.

  • JCFO_Underline_Brickell Backyard_existing

    MPath Brickell Now

  • JCFO_Underline_Brickell Backyard_proposed

    Underline Brickell Backyard After

  • JCFO_Underline_Hammock Trail_existing

    MPath South of Brickell Now

  • JCFO_Underline_Hammock Trail_proposed

    Underline Hammock Trail After

  • JCFO_Underline_Grove Gallery_existing

    MPath Coconut Grove Now

  • JCFO_Underline_Grove Gallery_proposed

    Underline Grove Gallery After

  • JCFO_Underline_Douglas Bird_existing

    MPath Ponce de Leon Now

  • JCFO_Underline_Douglas Bird_proposed

    Underline Bike Repair Kiosk After

  • JCFO_Underline_University colonnade_existing

    MPath University of Miami Now

  • JCFO_Underline_University colonnade_proposed

    Underline UM Colonnade After

  • JCFO_Underline_Dadeland_existing

    MPath Dadeland Now

  • JCFO_Underline_Dadeland_proposed

    Underline Dadeland Trail Connection After

  • JCFO_Underline_typical_trail_existing_processed

    Typical Trail Now

  • JCFO_Underline_typical_trail_proposed_processed

    Underline Typical Paths After

Building Connections

The 10-mile Underline will be Miami-Dade County’s first mobility corridor integrating all modes of transit. The Underline will connect to downtown and the Miami River Greenway on the north and to the proposed Ludlam Trail and the existing South Dade Trail on the south. This map shows many other proposed connections.

The Underline will be the spine of this future network of 250 miles of trails.

The Underline is the spine of a future connected network of countywide bicycle/pedestrian infrastructure and trails.
Click the map for a closer look.


UM School of Architecture Studies

The University of Miami School of Architecture has supported the Friends of The Underline initiative with student and faculty resources.  A Spring 2014 studio class of ten students created concept design of the trail, park space, and intersection interventions.  A  Spring 2015 study is being conducted with concept ideas for transit oriented development at the University of Miami and Brickell Metrorail stations.

James Corner Field Operations 

Through a competitive process, James Corner Field Operations of New York City was selected to create the master plan for The Underline 10 mile linear park and urban trail.  With the input collected from surveys and public meetings, we will proceed with design plans and secure funding for construction.  Join now to become a Friend of The Underline so we can keep you up-to-date during the design process.

Friends of The Underline

Friends of The Underline is a 501C3 non-profit organization advocating to transform the underutilized land below Miami’s Metrorail into a 10-mile linear park, urban trail and canvas for artistic expression to create a safer, more connected, mobile, and engaged community.

We have partnered with the Miami-Dade County Parks, Recreation and Open Spaces and  Transit departments.  Our committee includes architects, designers, urban planners, biking advocates, marketing experts, legal and accounting professionals, real estate developers, and more.

The Underline Team

  • Meg Daly Founder and President
  • Parker Thomson Vice President
  • Roger Terrone Treasurer
  • Daniel Balmori
  • Anna Baez
  • Tanya Bhatt
  • Alex Daly
  • Francine Madera
  • Hillit Meidar-Alfi
  • Margaret Nee
  • Ralph Rosado
  • Evan Schlecker
  • Gita Shamdasani
  • Pete Wood


  • Javier Betancourt
  • Jessi Berrin
  • Stu Blumberg
  • Carol Greenberg Brooks
  • Rocco Ceo
  • Carol Coletta
  • Rodolphe El-Khoury
  • Roberto Espejo
  • Mitchell Kaplan
  • Bill Kerdyk
  • Alfred Lurigados
  • Brent Reynolds
  • Roberto Rovira
  • Paul Schwiep


  • Miami-Dade County
  • City of Miami
  • City of Coral Gables
  • City of South Miami
  • Chamber South
  • Coral Gables Chamber of Commerce
  • Village of Pinecrest
  • AIA Miami Chapter
  • APA FL Gold Coast Section
  • Baptist Health South Florida
  • Bike Coconut Grove
  • Bike SoMi
  • Bike Walk Coral Gables
  • Bike 305
  • Brickell Homeowners Association
  • ChamberSOUTH
  • Coconut Grove Village Council
  • The Downtown Development
  • Emerge Miami
  • Fairchild Tropical Botanic Garden
  • Florida Department of
  • Friends of the Ludlam Trail
  • Friends of the MPath
  • Goldstein Schechter Koch
  • The League of American Bicyclists
  • Magic City Bicycle Collective
  • MIAMI Association of REALTORS
  • Miami-Dade County MPO
  • Miami-Dade County MPO
  • The Mitchell Wolfson
  • Riviera Neighborhood Association (RNA)
  • Salazar Jackson LLP
  • South Miami Bike Shop
  • Swire Properties
  • TrAC
  • University of Miami


  • Miami-Dade County Transit Department
  • Miami-Dade County Parks,
      Recreation & Open Spaces Department
  • University of Miami School of Architecture
  • The John S. and James L. Knight Foundation
  • The Miami Foundation
  • SOMI Magazine


Be a Friend 
Join now to be a Friend of The Underline to get updates on events and other important news.

I'm interested in volunteering


Who thought up the idea of The Underline?

Friends of The Underline founder, Meg Daly, broke both of her arms in 2013. Since she couldn't drive and had to go to physical therapy, she took Metrorail near her home and walked underneath the train tracks to her final destination. In the shade of the tracks, she wasn't that hot, even though it was July. She also noticed how wide the corridor is and that she was the only person using it. At that moment, she thought this land could be a linear park space and enhanced urban trail.

Who is the professional master plan design team and how were they selected?

Through a competitive process, James Corner Field Operations (JCFO) was selected as the master plan design team from a field of 19 applicants. This team has been engaged to create a master plan framework and detail for two demonstration projects. The companies working in collaboration with JCFO include Fairchild Tropical Botanic Garden, Kimley-Horn, HR&A Advisors, HLB Lighting, and Pentagram.

Future construction documents, construction and project management will also require professional teams.

What will the master plan provide?

The master plan will provide standards and requirements for the urban trail including trail widths and proposed materials. It will also include recommendations for lighting and wayfinding, seating, amenities, etc. The plan will also make proposals to improve crosswalks, intersections. Landscape recommendations will include a plant selection palette and placement.

The plan will also analyze a variety of funding sources and mechanisms for both construction and maintenance and the project's potential economic impact. When done, a cost estimator will price out the entire budget for landscape, urban trail, intersection interventions, etc. This will be the basis for a proposed budget.

Where will The Underline begin and end?

On the north end, The Underline begins at the Miami River north of the Brickell Metrorail station. On the south end, The Underline will end at Dadeland South Metrorail station.

How are the University of Miami studies being used?

The University of Miami School of Architecture generously offered university resources for conceptual planning for the initiative. All of the student work, which was pro bono, has been provided to the master plan design team.

Will you add buildings underneath the Transit guideway?

We cannot plan for permanent structures underneath Transit's guideway per FTA requirements.

What is the total budget for The Underline's design and implementation?

As part of the master planning contract, the design team will engage a professional cost estimator. Once the master plan is completed, the cost estimator will then execute a budget analysis that will be shared with the community.

How long will it take to finish The Underline?

Projects with similar vision and scope have taken a decade to complete. You can help us build it in less time by supporting the initiative and donating to the cause

How will the project be funded?

We are fully funded for our master planning. Funders include the cities of Miami, Coral Gables, and South Miami and the John S. and James L. Knight Foundation, the Miami Foundation, the Health Foundation of South Florida and the Mitchell Wolfson Foundation.

We are currently seeking funding from both the public and private sectors for construction and ongoing maintenance.

I have an idea for The Underline. How do I send it to you?

One of our top priorities is getting the community involved. Please email us at with your design comments.

What are you doing about safety?

User safety is one of our biggest concerns. Currently the MPath, the bike path underneath MetroRail, has limited lighting or amenities, and needs wider and safer crosswalks. All of these, and other safety issues, are being addressed.

How do I get involved?

Click the Join button on the home page. Like us on Facebook, follow us on Twitter, and make a donation.

How much open space will be provided by The Underline?

We used the 10 mile length of the corridor (52,800 feet) multiplied by 100 feet (average width of the corridor as determined by Miami Dade County Transit) is 121.21 acres. This is an estimate of the entire corridor including intersections. Since transit stations, parking, and other facilities encroach the corridor, we are using "100 hundred acres" as a working number until validated by the master plan and future surveys.

Where can I see the result of surveys and public meetings?

Please visit our "News" section on this website. Both the results of the public meetings and survey are posted.

Where will my donation go?

Friends of the Underline is a 501C3 non-profit organization. Your donations are tax-deductible and will be used to help us advocate and promote The Underline and administrate our organization. We really appreciate your support.