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

Cover CM Credits, Earn Certificates, Push Your Career Forward

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.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Man in teal shirt opening door to white microtransit shuttle with cactus graphics and making inviting gesture toward the camera.

Albuquerque’s Microtransit: A Planner’s Answer to Food Access Gaps

New microtransit vans in Albuquerque aim to close food access gaps by linking low-income areas to grocery stores, cutting travel times by 30 percent and offering planners a scalable model for equity-focused transit.

June 13 - U.S. Department Of Transportation

Group of people at table set ouf with picnic food on street during a neighborhood block party.

This City Will Pay You to Meet Your Neighbors

A North Kansas City grant program offers up to $400 for residents to throw neighborhood block parties.

June 13 - The Kansas City Star

Crowd gathered with protest signs on April 5, 2025 on steps of Minnesota state capitol protesting Trump cuts to social security and other federal programs.

Commentary: Our Silence Will Not Protect Us

Keeping our heads down and our language inoffensive is not the right response to the times we’re in. Solidarity and courage is.

June 13 - Shelterforce Magazine