Revealed: James Corner Field Operations Designs of the 'Underline' in Miami

After transforming opinions about public space with the High Line in New York, James Corner Field Operations will shift focus below the tracks—the Underline park under the MetroRail line in Miami.

1 minute read

September 18, 2015, 6:00 AM PDT

By James Brasuell @CasualBrasuell


Liz Camuti reports on big design new in connection with the proposed Underline in Miami, Florida, Which "seeks to transform the area beneath one of the city’s major elevated transportation systems: the MetroRail."

The big news: "Following a national design competition, James Corner Field Operations, the same firm that designed the High Line, was selected to transform the underused space into 'the green spine for a future 250-mile-long network of bicycle and walking trails.'"

Camuti provides these details about the project to provide an overview of the vision and process so far for the Underline:

"Beating out 19 other firms in a competition held by Friends of the Underline, Field Operation’s design for the first segment of the Underline, which will be 10 miles long, will be the first transportation corridor in Miami-Dade County to integrate all modes of traffic. According to Friends of the Underline, '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.'"

The article goes into further detail about the design concept proposed by James Corner Field Operations, including a collection of renderings to tease the urban design appetite.  

Sunday, September 13, 2015 in ASLA The Dirt

Young Professional

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 and Environmental 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 and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

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

September 30, 2026 - Zachary Whalen

The mayor of Baltimore speaks into a microphone in front of a rally for more state transportation funding from Maryland.

‘Going backwards:’ Baltimore mayor, students rally against state's transit funding plan

Maryland's proposed six-year plan provides no funding for Baltimore’s BMORE bus program and reduces its road maintenance funding.

October 2, 2026 - Baltimore Sun

An old brick apartment building in NYC.

Mamdani sent nearly 6,000 pied-à-terre tax warnings to homes that didn’t qualify

A judge has ordered the administration to cancel thousands of pied-à-terre tax notices after it sent 35% of them erroneously.

October 3, 2026 - The City Reporter

A data center. It is a low, white building, seen from above.

One of nation’s poorest counties to receive $6 billion data center

The developers estimate the project will create 200 permanent jobs and 1,000 temporary construction jobs.

15 minutes ago - Mississippi Today

A crowd of people try to get on a NYC subway.

MTA expects Trump’s tariffs to increase new NYC transit costs by $1 billion

The Metropolitan Transit Authority said the cost of new subway cars has risen by 30% since Trump began his second term as president.

1 hour ago - Gothamist

A CAT excavator drives past a brick building with marble columns.

Alaska takes public comment on new long-term plan for roads, bridges and more

Alaska's draft Statewide Transportation Improvement Program includes over $1 billion for the Alaska Marine Highway System.

2 hours ago - Alaska Beacon

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Senior Planner

City of Thousand Oaks

Community Development Director

City of Wisconsin Rapids

Professor of Urban Planning

Harvard University Graduate School of Design