They were moving it to Philadelphia to dry dock. They brought it through that canal with it seemed like inches to spare on either side. you can see it from my 95 on your way to Philly in the mothball fleet

and must've affected transoceanic voyage passenger numbers.

BOAC & Pan Am began jet service over the Atlantic in 1958. BOAC used the Comet & PanAm used the 707.
The SS United States had 6 years to be dominant, especially since planes like the Boeing 307 only carried about 30 people & was expensive.
Ships were still the deal for crossing oceans.

After a lengthy legal dispute, the US District Court in Philadelphia ruled on June 14, that the SS United States must vacate the berth at Pier 82 it has occupied for decades by September 12, 2024. In her ruling, Senior Judge Anita Brody determined that the ship’s landlord, Penn Warehousing, could not double dockage fees without notice to force the ship from her pier. But the court order established a 90-day deadline to move the nearly 1000-foot-long ship to a new home.

To save America’s flagship, the SS United States Conservancy has now launched an urgent effort to raise $500,000 to help cover the costs of the ship’s potential relocation and other critical expenses.

https://www.ssusc.org/save-the-united-states