Chicago Mayor Rahm Emanuel recently announced the Chicago Urban River Edges Ideas Lab, an initiative that’s tapped some big architecture firms to imagine concepts for Chicago’s evolving riverfront.

On the heels of the expansion of Chicago’s Riverwalk, resulting in a linear park with plenty of opportunities to engage with the Chicago River, the city is tasking architects with developing “renderings and design concepts for several typical river edge conditions found throughout the river system.”

The participating firms include Studio Gang, Ross Barney Architects, Perkins & Will, Site Design Group, LTD., SOM, SWA, David Adjaye, James Corner Field Operations, and Sasaki.

According to a press release from the city, the architectural firms will submit their design concepts in June 2017. The concepts will be exhibited at public locations for review and public comment, and they’ll also be displayed at the Chicago Architectural Biennial.

The lab hopes to build off the Great Rivers Chicago plan, which most ambitiously hopes to make the Chicago River swimmable by 2030.