These photos courtesy of the Pittsburgh Press and the Pennsylvania Historical and Museum Commission.
The Parkway East was built between 1946 and 1962.

  • Need for a connection from Second Avenue to Swissvale
was identified in 1921.


  • Engineering studies began in 1937.

  • Construction began in 1946 from Greensburg Pike to
Ardmore Boulevard.


  • Squirrel Hill Tunnel construction began in 1948.

  • The Parkway East opened from Bates Street to Churchill
on June 5, 1953.


  • Boulevard of the Allies to Bates opened 1956.

  • Grant Street to Oakland opened in 1958.

  • Monroeville Bypass opened in 1962.

The Parkway East was determined to be eligible for the
National Historic Register.

  • The Parkway East from Bates Street to the Churchill Interchange was
determined to be eigible for the National Historic Register in 2006 as
a part of FHWA's nationwide effort to determine eligible interstate
resources. Therefore, any proposed transportation improvements
to the Parkway East will be coordinated with the Pennsylvania
Historical & Museum Commission (PHMC). Several other features located near or on the Parkway East,
including, Frick Park, the Commercial Street Bridge and Schenley Park are also eligible for the
National Historic Register.


Route designations over time have changed.

  • The Parkway East was originally known as the Penn-Lincoln Parkway,
carrying the William Penn Highway (US 22) and the Lincoln Highway (US 30).
The section from Churchill to Ardmore Boulevard was designated as part of
PA 80 until 1960, when that highway number was eliminated.


  • From 1959 to 1964, the Parkway East was designated as Interstate I-70.

  • In 1964, the former I-70S was renumbered as I-70, and the Parkway East
took on the I-76 designation, which extended onto the Pennsylvania Turnpike
to Philadelphia.


  • In 1970, a new renumbering of the regional highways moved I-76 to the
Pennsylvania Turnpike, and the Parkway East took on its current
designation of I-376.