Pennsylvania Tunnel Excavation

5.4

/

1941

6.4

/

2019

6.5

/

2021

5.8

/

2020

9.2

/

2023

6.2

/

2014

7.2

/

2009

6.4

/

1968

6.1

/

2020

6.1

/

2004

5.201

/

2001

5.5

/

1988

6.9

/

2024

6.7

/

1966

5.6

/

1895

6.9

/

2017

6.405

/

2010

7

/

1937

6.3

/

2009

6.1

/

1970