As she spoke, people ran and cycled across the bridge, seemingly unaware of the ceremonies taking place. The metalbridge spans Stony Run in the shadow of a much larger one that carries University Parkway high above.
Before it was completed, intrepid joggers would splash across the stream and scramble up the banks. But for those unwilling or unable to do that, following along the path meant a long detour through the street.
Now an unbroken path following the line of the old Maryland and Pennsylvania Railroad stretches from Roland Park past the Johns Hopkins University and into Remington.
William Vondrasek, the deputy director of the city's Department of Recreation and Parks, explained why it took so long to finish the project.
First, state funding for the project had to be secured. That took two fiscal years, Vondrasek said.
They included politicians from the City Council and former Gov. Martin O'Malley. There were state bureaucrats and ones from the city, too. There were private funders and designers. And there were some four dozen volunteers.
Summing up the effort, Mary Page Michel from the Roland Park Community Foundation borrowed a slogan more commonly associated with street protests.
"This is what democracy looks like, huh?" she said, to applause. "When a group of people want something for their community and they go to their leaders and they say this is what we want, and they stay determined, we can get this gorgeous bridge."