It crosses the Monongahela River and intersects Interstate 579 ( the Crosstown Boulevard ) at its northern terminus .
The Liberty Bridge , completed in 1928 , connects downtown Pittsburgh , Pennsylvania , to the Liberty Tunnels and the South Hills neighborhoods beyond .
Liberty Bridge crosses the Monongahela River and intersects Interstate 579 ( the Crosstown Boulevard ) at Liberty Bridge 's northern terminus .
The Liberty Bridge , completed in 1928 , connects downtown Pittsburgh , Pennsylvania , to the Liberty Tunnels and the South Hills neighborhoods beyond .