Planners regret them, neighbors dislike them, and they gobble up valuable real estate in the center city. The downtown expressway is a much-disliked reality in most American cities. Now's the time to do something about them.
Planners regret them, neighbors dislike them, and they gobble up valuable real estate in the center city. The downtown expressway is a much-disliked reality in most American cities. Now's the time to do something about them.
The distain of center city highways is so strong that some cities have gone so far as to construct fantastically expensive lids or tunnels to replace them with parks. The Trust for Public Land's Center for City Park Excellence found 20 existing highway parks and plans for 12 more in the works for a recent study. In an article in April's Urban Land summarizing their findings, the group reports on successful freeway parks in cities as varied as Trenton, New Jersey, Phoenix, Arizona, and Duluth, Minnesota, and plans underway in Dallas and San Diego. Of course, the most well known example of this is Boston's Big Dig, where construction of the "Rose Kennedy Greenway" on the former site of the Central Artery has finally begun. I was pleasantly surprised to discover my hometown of Portland, Maine is even beginning to reconsider a high-capacity arterial that has long divided neighborhoods and hogged precious urban land.
For the time being, however, the most logical solution to the downtown freeway problem seems completely off the table: outright removal. Why not? Their negative impacts on downtown neighborhoods and encouraging urban sprawl are well documented. Many cities are investing heavily in public transportation systems, and gas prices are heading up. Finally, the impact of removing them may not be as bad as we fear. Like many, I was surprised to read the recent San Francisco highway collapse caused not gridlock, but a decrease in traffic as commuters hit the rails in record numbers.
Converting downtown expressways into at-grade boulevards or parks could free up valuable real estate for development and boost real estate values. The idea is not without precedent -- and other advocates -- in the U.S. Freeways have been removed successfully in Portland, OR, San Francisco, and Milwaukee, and certainly many more discussed.
However, for the time being the option seems unmentionable. During the APA conference in Philadelphia, I listened as planners explained how they had struggled to connect the campus to the Schuykill River during the Penn Connects planning process due to the presence of the the Schuylkill Expressway. Ruling out decking as too expensive, they discretely mentioned they would of course support its removal should that option arise.
Maybe it's time to bring it up.

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

Chicago’s Ghost Rails
Just beneath the surface of the modern city lie the remnants of its expansive early 20th-century streetcar system.

Amtrak Cutting Jobs, Funding to High-Speed Rail
The agency plans to cut 10 percent of its workforce and has confirmed it will not fund new high-speed rail projects.

Ohio Forces Data Centers to Prepay for Power
Utilities are calling on states to hold data center operators responsible for new energy demands to prevent leaving consumers on the hook for their bills.

MARTA CEO Steps Down Amid Citizenship Concerns
MARTA’s board announced Thursday that its chief, who is from Canada, is resigning due to questions about his immigration status.

Silicon Valley ‘Bike Superhighway’ Awarded $14M State Grant
A Caltrans grant brings the 10-mile Central Bikeway project connecting Santa Clara and East San Jose closer to fruition.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Caltrans
City of Fort Worth
Mpact (founded as Rail~Volution)
City of Camden Redevelopment Agency
City of Astoria
City of Portland
City of Laramie
