Construction began in 1969, and was completed in 1974. However, the bridge did not open to traffic until April 30, 1976
The Betsy Ross Bridge, also known as the Ross Memorial Bridge, is a continuous steel truss bridge spanning the Delaware River from the City of Philadelphia in Pennsylvania to Pennsauken, New Jersey. It was built from 1969 to 1974, and opened in April 1976, during the American Bicentennial Year. It was originally planned to be named as the "Delair Bridge", after a paralleling vertical lift bridge owned by Pennsylvania Railroad (which is now used by Conrail and New Jersey Transit's Atlantic City Line), but was instead later named for Betsy Ross, a Philadelphia seamstress and reputed creator of the first American flag in 1776.
It is 8485 feet long.