Exploring Ocean Shipping Casualty of World War II
The United States had been in World War II for less than a year, but the fight was coming close to the nation’s shores. In July 1942, off Cape Hatteras, North Carolina, the German U-boat U-576 sank the Nicaraguan-flagged freighter SS Bluefields.
But it came at a steep price: the merchant ship convoy and its U.S. military escorts fought back, sinking the U-boat within minutes as the U.S. Navy bombed the sub while the merchant ship Unicoi attacked it with its deck gun.
The wrecks of the SS Bluefields and U-576 were discovered in 2014 off Cape Hatteras, North Carolina, only 240 yards apart.
The National Oceanic and Atmospheric Administration (NOAA) and its partners will visit what remains of the two ships, documenting World War II’s Battle of the Atlantic, which pitted U-boats of the German navy against combined Canadian, British, and American forces defending Allied merchant ships.
NOAA discovered the two vessels in 2014, 35 miles offshore and approximately 700 feet underwater just 240 yards apart. Archaeologists aboard NOAA research vessel SRVX Sand Tiger located the ships during an autonomous underwater vehicle survey using a sophisticated high resolution sonar. Last year, both ships were placed on the National Register of Historic Places.
Using manned submersibles, the researchers will collect data to visualize and virtually recreate an underwater battlefield that has remained undisturbed for 74 years. Project Baseline, a global conservation non-profit, is supplying the GlobalSubDive assets including the research vessel Baseline Explorer, and two manned submersibles.
Underwater robots and advanced remote sensing technology, provided by 2G Robotics and SRI International, will generate bathymetric data and detailed acoustical models of the wrecks and surrounding seafloor. University of North Carolina’s Coastal Studies Institute will provide three-dimensional modeling of the wrecks.
“This discovery is the only known location in U.S. waters that contains archaeologically preserved remains of a convoy battle where both sides are so close together,” said Joe Hoyt, Monitor National Marine Sanctuary archaeologist and chief scientist for the expedition. “By studying this site for the first time, we hope to learn more about the battle, as well as the natural habitats surrounding the shipwrecks.”
The expedition, which runs through September 6, builds on previous work by NOAA and its partners to document nationally significant shipwrecks in the Graveyard of the Atlantic off North Carolina’s Outer Banks. During the expedition, NOAA will also visit several other World War I, World War II and Civil War vessels including the USS Monitor.
NOAA is currently considering an expansion of Monitor National Marine Sanctuary’s boundaries to increase the protections to the Bluefields, U-576 and other historic shipwrecks. Although the crew of Bluefields evacuated and did not suffer any casualties, the site is a war grave for the crew of U-576.
“The significance of these sites cannot be overstated,” said David Alberg, superintendent of Monitor National Marine Sanctuary. “This area off North Carolina is the best representation of a WW II battlefield off the East coast. Now, working with our partners, we have an opportunity to study it, characterize it, and, like other historic battlefields in this country, hopefully protect it.”
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