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SS Andrea Doria

During the aftermath of WWII, the Italian Line decided to focus not only on the transatlantic passenger service, but the burgeoning cruise market. In 1953, the SS Andrea Doria was introduced to much fanfare. The largest Italian ship when launched, the Andrea Doria was the pride of Italy.

Launched with much fanfare, the ship provided modern and futuristic luxury. Equipped with the latest technology, the vessel was poised to serve for decades.

On a routine transatlantic crossing, just off the coast of Nantucket, on a foggy summer evening in 1956, disaster struck. The SS Andrea Doria and the SS Stockholm collided, ultimately causing the Andrea Doria to capsize and sink. Located at 40°29.408′N 69°51.046′W under 160' of water, the SS Andrea Doria has become a scuba diving destination, gaining the distinction of the Mt. Everest of scuba diving. 


Luxury Across the Atlantic

Launched during the pinnacle of transatlantic ocean liner service, the Andrea Doria sailed with several other record breaking ships. Largest distinction went to Cunard's RMS Queen Elizabeth and the fastest ship was the SS United States. Deciding to not compete with these other liners, the Andrea Doria instead focused on luxury and accommodations.

Divided into three classes, the services provided to each class were unmatched. Each class had a pool on deck, main dining hall, lounges, library, and other assorted services.

To some historians, the Andrea Doria was the most beautiful ship built to date.

A Crash in the Foggy Night

Equipped with the latest safety features, such as radar, the Andrea Doria was considered one of the safest ships afloat. Also as part of the design, 11 watertight bulkheads divided the ship and the exterior had a double hull in case of collisions.

Nearing the end of its 51st crossing, the SS Andrea Doria was cruising nearly full speed to maintain schedule. Normal fog precautions were taken: watertight doors closed, fog horn sounding, extra watches, and radar turned on. Nearing the lightship in the frequently used shipping channel, a blip showed on the radar map. The SS Stockholm, another liner almost half the size of the Andrea Doria, started sailing from New York to Gothenburg, Sweden and had just entered the fog from clear seas. A misreading of the radar screens led the ships to a collision course. Once the officers on watch realized, the SS Stockholm veered starboard and attempted to stop and the Andrea Doria sped up to outrun the collision.

On July 25, 1956 the ships collided at nearly 90 degrees, and the Stockholms ice-breaking bow crashed into the Andrea Doria, killing 46 people.

SS Andrea Doria sinking capsize
The Slow Capsize

Immediately following the crash, the Andrea Doria issued SOS signals alerting of distress and needing assistance.

The passengers were evacuated using only half of the lifeboats, because the others were unusable. Fortunately, the design of the Andrea Doria provided rescuers nearly 12 hours after the crash to allow a complete and full evacuation.

Another unintended success, the sinking of the Andrea Doria has become one of the most well documented sinking of a large vessel, allowing designers to analyze how the ship reacts during a capsize.

Other Design Factors

After the crash, investigation into possible design flaws were extensive. There were 8 lifeboats on each side of the ship, more than enough to carry the 1,241 passengers and 563 crew in an emergency. The lifeboats however could not be launched if the ship listed at more than 15 degrees.


Another feature, watertight compartments divided the ship and continued past A deck. However, similar to the RMS Titanic sinking, the water simply flowed over the bulkheads into the next compartment because the Andrea Doria was listing more than 20 degrees. During the sea trials, the ship developed a tendency to roll from side to side if a force was applied, especially in rough seas.

Although there were extensive legal challenges brought up in the aftermath and multiple countries (Italian, Swedish, and American) conducted  investigations, a settlement was made out of court shortly after.

Visit the Andrea Doria Today

Sitting at the bottom of the oceans, over 160 feet deep, the Andrea Doria barely supports scuba divers, earning it the nickname of Mt Everest of the Sea due to its complex and challenging depth and other dangers.

SS Andrea Doria Facts

SS Andrea Doria Facts
29,083 GRT
701' - 5"
90' - 3"
Number of Decks:
Cruising Speed:
23 Knots (26.4 mph or 42.6 km/hr)
Max Speed:
25 Knots (28.7mph or 46.3km/h)
Ansaldo Shipyards, of Genoa Italy
Port of Registry:
Maiden Voyage:
January 14, 1953
Years in Service:
Current Status:
Collided with the SS Stockholm and capsized on July 26, 1956 off the coast of Nantucket: 40°29.408′N 69°51.046′W
SS Andrea Doaria Ocean Liner Ship Boat Elevation Drawing Schematic Profile.png

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SS Andrea Doria

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SS Andrea Doria Frequently Asked Questions

  • What was the Andrea Doria? Answer: The Andrea Doria was an Italian ocean liner that was in service from 1953 to 1956.

  • Where did the Andrea Doria sail to? Answer: The Andrea Doria sailed between Italy and the United States, with its final destination being New York City.

  • When did the Andrea Doria sink? Answer: The Andrea Doria sank on July 26, 1956, after colliding with the Swedish liner Stockholm the night before.

  • How many people were on board the Andrea Doria when it sank? Answer: There were approximately 1,706 passengers and crew members on board the Andrea Doria when it sank.

  • How many people died in the sinking of the Andrea Doria? Answer: 46 people died in the sinking of the Andrea Doria, 5 people died aboard the Stockholm in the collision.

  • What caused the collision between the Andrea Doria and the Stockholm? Answer: The cause of the collision between the Andrea Doria and the Stockholm was the result of several errors, ultimately leading to neither party accepting blame. More recently, research and analysis has been conducted with updated claims that the collision was caused by a navigational error on the part of the Stockholm's crew while using a new radar system.

  • What was the weather like on the night of the collision? Answer: The weather on the night of the collision was foggy with poor visibility, which contributed to the navigational error.

  • How long did it take for the Andrea Doria to sink after the collision? Answer: The Andrea Doria remained afloat for approximately 11 hours after the collision, allowing for all that survived the collision, both passengers and crew, to be rescued.