SS United States, Fastest Ocean Liner Ever Built, Sinks to New Life as World's Largest Artificial Reef

The SS United States, holder of the transatlantic speed record since July 1952, will be scuttled off the Florida coast on Wednesday afternoon. The scuttling makes the 990ft (300-metre) liner the world's largest artificial reef.

Five tugboats moved the rusting hulk from its quayside in Mobile, Alabama, on Monday. Its destination lies 25 miles off Destin, Florida. The vessel will go down stripped of its two giant funnels and mast, barely recognizable as the one-time crown jewel of the cruise industry. The sinking will use controlled flooding — no explosives.

The record stands unbroken. In July 1952 the liner crossed eastbound in three days, 10 hours and 40 minutes, averaging almost 36 knots (41.4mph). No passenger liner has surpassed it. Not bad for a ship now headed for the seabed at a depth of about 180ft.

How did the fastest ship afloat end up as a reef?

Decline arrived early. The now defunct United States Lines withdrew the liner from service in 1969, hit by falling passenger numbers and the rise of transatlantic air travel. Proposals followed for a floating hotel, a museum, a hospitality venue. None raised the money or the momentum. The ship languished at docksides in Virginia and Pennsylvania while a protracted legal fight played out and ownership changed hands, including a stint under the SS United States Preservation Society, a non-profit founded in 1992 to save the vessel from the scrapyard.

Money closed the argument. In 2021, port authorities in Philadelphia doubled daily dockage fees to $1,700 — a sum the conservancy said it could not afford. A court order evicted the deteriorating liner in 2024, and it seemed destined to be broken up. Then Florida's Okaloosa county purchased it for $1m and advanced the reef project that concludes this week. Months of preparation in Mobile followed, including removal of internal fixtures and toxic materials.

What happens next?

Divers can visit the ship on the seabed from this weekend. Plans are advanced for a shore-based museum featuring the funnels and items from the ship, plus a pier from which diving trips to the reef will depart.

Susan Gibbs, the conservancy's president and co-founder — and granddaughter of William Francis Gibbs, the liner's designer and one of the most celebrated maritime architects of the 20th century — said the group was appreciative that people could still visit the ship and hear its story, even out of public view.

"While she will soon rest beneath the waves, her story will live on," Gibbs said. "She's being reefed and will remain intact and will become a vibrant and dynamic marine habitat, so that, combined with the land-based museum and visitor experience, will honor her history in a deeply moving way."

The conservancy has spent 20 years collecting artifacts, film and testimonials from those who sailed on her and worked on board. Gibbs believes her grandfather, who saw the record-breaking, entirely American-built liner as among his finest accomplishments, would be touched by the preservation effort.

"His relationship with the ship was, I would say, a full bore obsession," she said. "He would joke that he loved the SS United States a thousand times more than my grandmother. He would see the ship off every time she set sail for Europe, and be one of the first to greet her on her return. He had a true love affair with the ship."

An ignoble end, one might think, for a ship that once carried presidents, royalty and celebrities in opulence between Europe and America. But an intact hull colonized by marine life, paired with a land museum, beats the cutting torch. The liner that outran every rival now settles where, for once, nothing is expected to catch up with it.