Skip to main content
Back to Show
American Experience

Hudson River Tunnel Shifting

As the Pennsylvania Railroad tunneled underneath the Hudson River, measurements showed that the tunnels were shifting up and down in the silty river bottom. Increasing the weight of cast iron linings did nothing to settle the tunnels, and the shifting continued. Engineers finally figured out what suddenly seemed obvious: the tunnels were moving with the tide.

Support Provided By
Season
The Harvest: Integrating Mississippi's Schools
1:47:20
The story of a Mississippi town’s effort to integrate its public schools in 1970.
The Busing Battleground
1:52:38
Revisit 1970s Boston, when court-mandated school integration unleashed racial unrest.
Casa Susanna
1:36:51
Casa Susanna was a refuge for transgender women and cross-dressing men in the 1950s-60s.
The Sun Queen
52:22
Unsung scientist Mária Telkes dedicated her career to harnessing the power of the sun.
The Movement and the "Madman"
1:22:39
Discover the story of the 1969 showdown between President Nixon and the antiwar movement.
Ruthless: Monopoly's Secret History
Unlock with PBS Passport
52:36
Discover the unexpected history behind Monopoly, America’s favorite board game.
Women in American History
1:52:24
The influential author and anthropologist whose work reclaimed and honored Black life.
The Lie Detector
52:45
The story of the polygraph, the controversial device that transformed modern justice.
Part 2 |Taken Hostage | American Experience
1:51:34
The Iran hostage crisis through the stories of those whose ordeal riveted the world.
Part 1 |Taken Hostage | American Experience
1:52:24
The Iran hostage crisis through the stories of those whose ordeal riveted the world.
The Blinding of Isaac Woodard, Spanish
1:52:49
The Blinding of Isaac Woodard with Spanish subtitles.
The Blinding of Isaac Woodard
1:52:23
How a horrific incident of racial violence became catalyst for the civil rights movement.
Active loading indicator