Continental Iron Works

United States Est. 1847

Continental Iron Works was a commercial ironworks in Greenpoint, Brooklyn, that built boilers, engines, and iron structures. In late 1861, the Navy contracted Swedish-born inventor John Ericsson to build a radical new warship, and Ericsson chose Continental Iron Works to fabricate and assemble the hull. USS Monitor was built in approximately 100 days, an extraordinary pace driven by wartime urgency and Ericsson's relentless oversight. The ship that emerged was unlike anything afloat. A flat iron raft with a rotating gun turret, Monitor looked more like a floating factory than a warship. Continental Iron Works built the hull and assembled the components, while subcontractors produced the turret, engines, and armor plate. The whole project was a bet on industrial capacity over naval tradition, and it paid off at Hampton Roads in March 1862. Continental Iron Works was not a shipyard in any traditional sense. They were metalworkers who happened to build the most consequential warship of the 19th century. The yard continued commercial operations after the war but never again produced anything with that kind of historical weight.

Heritage

The Monitor project demonstrated that American industrial shops could produce advanced warships faster than purpose-built naval yards. Continental Iron Works proved that innovation in naval construction didn't require centuries of shipbuilding tradition. It required engineering talent, metalworking skill, and the willingness to build something nobody had ever seen before. The Greenpoint waterfront where Monitor took shape is now residential, with little to mark the spot where ironclad warfare began.

Vessels (1)

USS Monitor

USS Monitor

John Ericsson designed the Monitor in about 100 days and Continental Iron Works in Brooklyn built her in roughly the same. She looked like nothing anyone had ever seen. A flat iron raft with a revolving turret on top, sitting so low in the water she was nearly submerged. Navy men called her "a tin can on a shingle" and "Ericsson's folly." She was the future of naval warfare. On March 8, 1862, the CSS Virginia steamed into Hampton Roads and destroyed two wooden Union warships, killing over 240 men. The USS Cumberland went down fighting. The Congress burned. The rest of the Union fleet was helpless. If Virginia came back the next morning, she'd destroy the grounded USS Minnesota and potentially break the Union blockade of the entire Confederacy. Monitor arrived that night, towed from New York, barely making it through rough seas that nearly sank her. The next morning, March 9, the two ironclads fought for about four hours at close range. Neither could penetrate the other's armor. Virginia's shots bounced off Monitor's turret. Monitor's 11-inch Dahlgrens dented but didn't break Virginia's casemate. It ended in a tactical draw. But the strategic impact was total. Every wooden navy in the world was obsolete. Britain and France, both building wooden ships of the line, stopped and pivoted to ironclad construction. The engagement at Hampton Roads didn't just change the Civil War. It changed every navy on earth in a single morning. Monitor herself lasted less than a year. She sank in a storm off Cape Hatteras on New Year's Eve 1862. Sixteen of her crew went down with her. The ship that made every other warship obsolete couldn't survive moderate seas. Ericsson's flat-deck design, revolutionary in combat, was fatally unsuited to open ocean.

1862 · ironclad