The Newkirk Viaduct Monument was designed by famous architect Thomas Ustick Walter in 1839 to celebrate the construction of the viaduct. The Newkirk Viaduct was was the first permanent bridge at Grays Ferry. The south side of the bridge had a track for the Philadelphia Wilmington & Baltimore Railroad and the north end of the bridge was a roadway. The bridge was named after the railroad's president and prominent Philadelphia businessman, Matthew Newkirk. The monument was moved here from its former site by the Amtrak Northeast Corridor and restored in 2016.