Miami’s Underline Linear Park Offers Recreation, Transportation, Conservation

A 10-mile park that runs under the Miami Metrorail is nearly complete and features bioswales for water conservation and public recreation facilities.

1 minute read

January 7, 2025, 5:00 AM PST

By Diana Ionescu @aworkoffiction


Pedestrian and bike trail under Miami Metroline elevated tracks.

The Miami Underline offers 10 miles of multi-use, often separated trails. | Felix Mizioznikov / Adobe Stock

A 10-mile trail and linear park in Miami, set for completion in 2026, will feature bioswales for stormwater retention, hydration and bike repair stations, free WiFi, and more, reports Ysabelle Kempe in Smart Cities Dive. 

The Underline, as it’s known, runs beneath the elevated transit tracks of the Miami Metrorail. According to Friends of The Underline CEO Patrice Gillespie Smith, “What I really admire about The Underline and what Meg [Daly], our founder, did is instead of trying to put it all on a road in quite an auto-centric community, she identified an underutilized space and said this is where our multimodal trail can go but also [be] a linear park.”

Smith adds, “It is first and foremost a transportation corridor. In most cases on the multimodal trail, the biking element is separated from the pedestrian element.” The project includes amenity areas such as a 50-foot “dining room table” designed for people to gather with friends and neighbors.

Smith says the project is also key to managing extreme storm events. “The bioswales are going to make sure that the water slows down, is cleaned and is able to return to the aquifer purified. The aquifer is our drinking source, so it’s very important.”

Monday, January 6, 2025 in Smart Cities Dive

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Interior of Place Versailles mall in Montreal, Canada.

Montreal Mall to Become 6,000 Housing Units

Place Versailles will be transformed into a mixed-use complex over the next 25 years.

May 22, 2025 - CBC

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 28, 2025 - Diana Ionescu

Rendering of California High-Speed Rail station with bullet train.

California High-Speed Rail's Plan to Right Itself

The railroad's new CEO thinks he can get the project back on track. The stars will need to align this summer.

May 19, 2025 - Benjamin Schneider

View of downtown Seattle with construction cranes and cloudy sky as seen from top of Space Needle.

Seattle’s Upzoning Plan is Ambitious, Light on Details

The city passed a ‘bare-bones’ framework to comply with state housing laws that paves the way for more middle housing, but the debate over how and where to build is just getting started.

8 seconds ago - The Urbanist

Woman and man in orange safety vests and hard hats doing surveying work at road construction site.

DOJ Seeks to End USDOT Affirmative Action Program

The Disadvantaged Business Enterprise Program encouraged contracting with minority- and women-owned businesses in the transportation sector, where these groups are vastly underrepresented.

2 hours ago - The Washington Post

Aerial view of Missouri state capitol in Springfield, MO at golden hour.

A Missouri Tenant Union’s Fight Against Millennia Housing

In Springfield, Missouri, senior and disabled tenants at one Millennia affordable housing building say they’ve gone about a year without a working elevator, but their organizing has gotten the city to threaten receivership if it's not fixed soon.

3 hours ago - Shelterforce Magazine