He was promoted to commodore and ordered north to command the new ironclad . Both Weehawken and Atlanta returned to Port Royal. Weehawken resumed operations against Confederate strongholds in and around Charleston harbor. On 10–11 July, Union ironclads , , Nahant, and Weehawken shelled Confederate batteries at Fort Wagner on Morris Island, South Carolina, to cover an Army amphibious landing under Brigadier General Quincy A. Gillmore. Despite additional bombardments on 18 and 24 July, the monitors failed to silence the fort, leaving General Gillmore's troops pinned down on the beach caught between a murderous hail of cross fire. Fort Wagner was finally reduced during a naval bombardment of Forts Gregg, Sumter, and Moultrie on 17 August. Weehawken, Montauk, Nahant, , and now took aim at Fort Sumter, pounding it to rubble during two separate bombardments on 23 August and 1–2 September. Admiral Dahlgren demanded Sumter's surrender on 7 September and ordered Weehawken to deploy in a narrow channel between the fort and Cumming's Point on Morris Island. There, Weehawken grounded, taking concentrated gunfire from Fort Moultrie and Sullivan's and James Island. The vessel was refloated with the help of tugs on 8 September, and received a "Well done!" from Admiral Dahlgren for outstanding defensive gunnery while aground. Weehawken repaired at Port Royal until 4 October, then returned to Charleston for routine patrol duty in the harbor. The next two months were uneventful, and Weehawken lay anchored off Morris Island during a moderate gale early on the morning of 6 December. Suddenly, the ironclad signalled for assistance and appeared to observers ashore to be sinking. Attempts to beach the vessel failed, and she sank bow first five minutes later in of water. A court of inquiry found that Weehawken had recently taken on a considerable amount of heavy ammunition in her forward compartments. This change excessively reduced her forward freeboard, causing water to rush down an open hawsepipe and hatch during the storm. As the bow sank, and the stern rose, water could not flow aft to the pumps and the vessel foundered. Four officers and 27 enlisted men drowned aboard Weehawken. References Bibliography Additional technical data from External links navsource.org: USS Weehawken hazegray.org: USS Weehawken Passaic-class monitors Ships built in New Jersey 1862 ships Ships of the Union Navy American Civil War monitors of the United States Shipwrecks of the Carolina coast Shipwrecks of the American Civil War Maritime incidents