Rachel Carson Bridge

Gene J. Puskar / AP

The Rachel Carson Bridge, also known as the Ninth Street Bridge, will close Monday, Feb. 11 through the summer of 2020, according to the Allegheny County Department of Public Works.

U.S. Fish and Wildlife Service / NCTC Archives Museum

Rachel Carson would recognize the conflict between environmental regulation and corporate interests as it is manifesting in President-elect Donald Trump’s pick for head of the Environmental Protection Agency.

AP Photo/Keith Srakocic

Infrastructure decisions affect the public every day — which sewer should be repaired first, which pothole should be filled next—but it’s rare to be asked to weigh in on those decisions. However, an online poll will help decide the future color of the "Three Sisters" bridges, as well as a question of regional identity.