Skip to Content
Streetsblog Chicago home
Streetsblog Chicago home
Log In

Miami’s “Underline” — The Vision for a 10-Mile Greenway Beneath the Rails

Miami's "Underline" proposes making the derelict space under Miami's Metrorail into a "10-mile linear park." Image:
The "Underline" would remake the leftover space beneath Miami's Metrorail as a 10-mile greenway. Image: The Underline

The idea for Miami's "Underline" came to Meg Daly after she broke both her arms in 2013.

Unable to drive, Daly, who lives in Coral Gables, started taking Miami's Metrorail to physical therapy. When she got off at her stop, she would walk the last mile under the shade of the elevated rail platform.

"I just kind of had this moment of discovery," she told Streetsblog. "I ended up walking beneath the train tracks. I was like, 'There’s so much space here.'" She thought the neglected but nicely shaded area could make for great walking and biking.

Now, just a few years later, a real plan for a 10-mile linear park called the Underline is moving forward. Daly heads the nonprofit group Friends of the Underline, which is finishing up the master plan for the project. The group received $650,000 for planning and design, funded by the city of Miami, the Knight Foundation, the Miami Foundation, and others.

The Underline would run 10 miles from South Miami, through Coral Gables and on to Miami's Brickell neighborhood under the elevated Metrorail platform by U.S. 1. Map: The Underline
The Underline would run 10 miles from South Miami, through Coral Gables and on to Miami's Brickell neighborhood under the elevated Metrorail platform by U.S. 1. Map: The Underline

The Friends of the Underline vision is to create an inviting place for active transportation running through one of the most densely populated urban areas in the American South.

Miami's Metrorail corridor runs 10 miles between South Miami, Coral Gables, and Miami, terminating in the walkable Brickell neighborhood. The corridor roughly parallels US-1, a traffic-clogged urban highway that runs up the eastern coast of Florida.

About 100,000 people live within a 10-minute walk, Daly says. But active transportation options are limited, largely because of South Florida's notoriously wide, dangerous roads.

The key insight Daly had was that the space under the elevated Metrorail provides a potential respite. But right now it's very uninviting. The Underline project is all about making it safe and appealing for people.

Plans call for adding two trails -- one for walking, one for biking -- lighting, drinking fountains, play equipment, and seating. All the "things that make you want to bike and walk," said Daly.

Image: The Underline
Screen Shot 2015-11-06 at 1.56.34 PM

They estimate the project will cost about $120 million. About $20 million of that would go toward redesigning intersections between city streets and the trails to minimize risks to walkers and bikers. That will be no small job. Lots of the feeder streets to US-1 dump traffic into through streets that cross the Underline's path.

"It’s all about the car," said Daly. "All the intersections are designed to favor automotive travel."

Daly says potential conflicts will be managed in a number of ways. At some intersections, the trail crossing will be highlighted with colored paint to urge caution for drivers. Many intersections will have a full signal phase solely for bicyclists and pedestrians. In a few of the most difficult cases, the trail will be elevated above the cross street on accessible bridges.

Screen Shot 2015-11-06 at 1.59.19 PM
Screen Shot 2015-11-06 at 1.59.09 PM

Daly says development is already springing up along the path of the project, but the nonprofit is still seeking funding to realize its vision. Friends of the Underline hopes to win grants from the Florida Department of Transportation and the federal government. And to fund maintenance, the organization plans to use a special assessment that would capture increased property tax revenue from nearby development.

"What we’re really all about is promoting development by transit which is an new idea down here," she said.

Stay in touch

Sign up for our free newsletter

More from Streetsblog Chicago

FOIAed letter shows Ald. Hopkins asked CDOT to scrape out dashed bike lanes from Dearborn in posh Gold Coast

The alder says constituents in this affluent neighborhood feel the new street layout is "very problematic and unsafe", but the same configuration has worked fine in other communities.

July 13, 2024

CTAction: It’s silly for CTA to update timetables to reflect “more scheduled rail service” when it can’t deliver its current schedule

The grassroots transit advocacy group says there's no point in advertising more service on the new timetables when the CTA isn't actually providing it.

July 11, 2024

Transit advocates voiced support for 9 Ashland bus extension, transportation committee approved it

A full City Council vote is needed to finalize the project, and the next Council meeting is next Wednesday, July 17.

July 11, 2024
See all posts