Ralph Modjeski (1861-1940)

Philadelphia County · dedicated 2007 · NW corner, N 6th & Race Sts., at Franklin Sq. Park entrance, Philadelphia

Polish immigrant and civil engineer, Modjeski was one of the most influential figures in American bridge building. He completed the Quebec Bridge on the St. Lawrence River and over 40 others, earning numerous awards. He was chief engineer and designer for the Benjamin Franklin Bridge here, opened in 1926.

David Rumsey Map Collection, Stanford Libraries

Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

See your own family's places through time.

Start with your family tree