Close up section featuring the Ben Franklin bridge toll and maintenance workers, and a scene from the Philly Marathon on the bridge. This mural Building Connections Through Time is located in the 5th Street walking tunnnel under the Benjamin Franklin Bridge in Philadelphia. Over 2,000 square feet of whimsical landscapes and figures cover the underpass, illustrating the Delaware River Port Authority history of the Benjamin Franklin, Betsy Ross, Commodore Barry, and Walt Whitman bridges.