The High Bridge at Harlem, Length 1,450 ft. (1849) Lithographic print showing the newly completed High Bridge spanning the Harlem River. At 1,450 feet long and 114 feet above the water, it was an engineering marvel. The print captures the bridge just one year after its opening in 1848. From the Eno Collection. Date: 1849 Location: Harlem River, New York City Type: lithograph Subjects: river, bri…