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"...USS Patapsco struck a Confederate mine and sank in the channel off Fort Moultrie in 1865."

More on the U.S.S. PATAPSCO

USS Patapsco, a 1335-ton Passaic class Union Navy monitor built at Wilmington, Delaware, was commissioned in early January 1863. Assigned to the South Atlantic Blockading Squadron, she took part in a bombardment of Fort McAllister, on Georgia's Ogeechee River, on 3 March. On the 7th of April Patapsco joined eight other ironclads in a vigorous attack on Fort Sumter, off Charleston, South Carolina, and received 47 hits from Confederate gunfire during that day. Beginning in mid-July, she began her participation in a lengthy bombardment campaign against Charleston's defending fortifications. This led to the capture of Fort Wagner, on Morris Island, in early September. Fort Sumter was reduced to a pile of rubble, but remained a formidable opponent.

Officers of the Patapsco
(click to enlarge)

Federal Ironclads in the
James River, Virginia
(click to enlarge)
Bombardment of Ft. McAllister
Georgia, March 3, 1963
(click to enlarge)
Panoramic View of
Charleston Harbor
(click to enlarge)
Charleston Campaign,
1863 - 1865
(click to enlarge)
 

In November 1863, Patapsco tested a large obstruction-clearing explosive device that had been devised by John Ericsson. Remaining off South Carolina and Georgia during much of 1864 and into 1865, the monitor, or her boat crews, took part in a reconnaissance of the Wilmington River, Georgia, in January 1864 and helped capture or destroy enemy sailing vessels in February and November of that year. The Patapsco fought throughout the siege of Charleston. On 14 January 1865, while participating in obstruction clearance operations in Charleston Harbor, USS Patapsco struck a Confederate mine and sank in the channel off Fort Moultrie in 1865. Sixty two of her crew were lost.

While the location of Patapsco was thought to be known, no one had certified the remains until NUMA documented the location.

Charleston Harbor -
Magnometometer Contours
& Side-Scan Image
(click to enlarge)
Charleston Harbor - Magnometer
Grid of Ironclad
(click to enlarge)

Charleston Harbor - Side-Scan
Image of Ironclad
(click to enlarge)

Charleston Harbor - Magnetometer
Grid and Contours of Ironclad
(click to enlarge)
Charleston Harbor - Grid Shine
through Side-Scan Image
(click to enlarge)
 
Charleston Harbor - 3D Images
of Bathymetry & Side Scan
(click to enlarge)
Charleston Harbor - 3D Images
of Bathymetry & Side Scan
(click to enlarge)
 


 

 

 

 

 




National Underwater and Marine Agency