Exploring Pennsylvania’s historic Union Canal Tunnel Park
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Asia Tabb
aired; May 26, 2026
Listen to the podcast to hear the full conversation.
Hidden in Lebanon County is one of Pennsylvania’s most unique pieces of transportation history—the Union Canal Tunnel, recognized as the oldest existing transportation tunnel in the United States.
On The Spark, Ed Martel Jr. discusses the history of the Union Canal and the tunnel that once helped connect Harrisburg, Reading, and Philadelphia during the 1800s. The conversation also explores the 110-acre Union Canal Tunnel Park, which is maintained entirely by volunteers and offers tours, recreational opportunities, and a closer look at Pennsylvania’s canal-era past.
From historic boat passages to modern-day preservation efforts, the discussion highlights how the site continues to educate visitors and preserve an important chapter of American transportation history.

