The work continues: A concrete pump looms over the green spring leaves, pumping wet concrete for the new surface for part of the new Greenfield Bridge over the Parkway East Wednesday morning. Wednesday was the first day of pouring concrete on the bridge, which is scheduled to open in the fall. (Photo by Darrell Sapp/Post-Gazette) #Pittsburgh #PGH #412 #GreenfieldBridge #CityofBridges #Pittsburghconstruction #PGPhotos