Ingalls Building
| Ingalls Building | |
|---|---|
The 16-story Ingalls Building became the world's first reinforced concrete skyscraper in 1903 | |
| Alternative names | Courtyard by Marriott Cincinnati Downtown |
| General information | |
| Address | 6 E. 4th St. |
| Town or city | Cincinnati, Ohio |
| Coordinates | 39°06′00″N 84°30′45″W / 39.10000°N 84.51250°W |
| Named for | Melville E. Ingalls |
| Year(s) built | 1903 |
| Technical details | |
| Material | Reinforced concrete |
| Floor count | 16 |
| Grounds | Less than 1 acre (0.40 ha) |
| Design and construction | |
| Architecture firm | Elzner & Anderson |
| Engineer | Henry N. Hooper |
| Known for | First skyscraper made of reinforced concrete |
Ingalls Building | |
| NRHP reference No. | 75001418 |
| Added to NRHP | March 7, 1975 |
The Ingalls Building, built in 1903 in Cincinnati, Ohio, is the world's first reinforced concrete skyscraper. The 16-story building was designed by the Cincinnati architectural firm Elzner & Anderson and was named for its primary financial investor, Melville E. Ingalls. The building was considered a daring engineering feat at the time, but its success contributed to the acceptance of concrete construction in high-rise buildings in the United States. It was converted to a hotel, the Courtyard by Marriott Cincinnati Downtown, in 2021.
The Ingalls building is bordered by East 4th Street and Vine Street in the Cincinnati Central Business District.