| Y/M/D | Description | Place |
|---|---|---|
| 1781/01/01 | A cast iron arch bridge spanning the River Severn in Shropshire, England, opens to traffic. | The Iron Bridge, The Gorge |
| 1815/00/00 | King George commissions John Nash to begin the transformation from modest villa into an oriental palace. Nash will superimpose a cast iron frame onto the existing building to support minarets, domes and pinnacles on the exterior. | The Royal Pavilion, Brighton |
| 1827/00/00 | Faneuil Hall Market opens. Structural support is provided by cast iron columns spaced along a central aisle down the length of the first floor. The side areas are divided into 128 stalls. The second floor has seven large halls, all directly connected. | Quincy Market, Boston, Boston |
| 1839/00/00 | First Cast Iron Bridge in America, Dunlap's Creek Bridge, is erected to carry the National Road across Dunlap's Creek in Brownsville, Pennsylvania, 1836-1839. | Dunlap's Creek Bridge, Brownsville |
| 1848/00/00 | Biloxi Lighthouse is erected in Mississippi, one of the first cast-iron lighthouses in the American South. | Biloxi Lighthouse, Biloxi |
| 1856/00/00 | John Black Cornell patents a metallic surface for fireproof partitions that support plaster a key component in the construction of high-rise fireproof buildings. | |
| 1873/00/00 | Frank E and Fitz A Kirby design a towboat constructed of iron frames with steel plates. It will be one of the earliest steel hulled vessels on the Great Lakes. | SPORT (tug) Shipwreck Site, Lexington |
| 1882/00/00 | J B and J M Cornell, employing 1,200 at its peak, supplies steel and iron work for The Product Exchange (lost). The building at 2 Broadway had cast-iron columns, supported by wrought-iron girders and metal beams and trusses. | |
| 1913/02/20 | The superstructure of Miah Maull made by Richard Mfg Co of Bloomberg, PA, is completed with a lens manufactured by Barbier, Benard and Turenne of Paris (lost). Its permanent fog signal will be placed in operation on 5 December 1913. | Miah Maull Shoal Lighthouse, |
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