Credit: Jervis Public Library-‐Rome, NY
Watercolor rendering of the design of the High Bridge across the Harlem River showing 50 and 80 feet wide arches as well as hollow spaces in piers and between arches showing in darker shaded coloring.
Credit: T. Schramke-‐Library of Congress
Details of the High Bridge as drawn by Schramke. Shown are hollow spaces in piers and spandrel walls, two 36 inch water mains on top of bridge and plan for wooden centering on which to build all the arches.
Credit: Jervis Public Library-‐Rome, NY
A 3 dimensional drawing of a large boom derrick proposed for use in building the High Bridge across the Harlem River. It is a 100 feet high Dmber frame structure, making it tall enough to lift stone to high elevations of the bridge.
Credit: Jervis Public Library, Rome, NY
A watercolor drawing of a plan for a gatehouse at the High Bridge, later modified to include only two 36 inch pipes to carry water across the bridge.
Credit: Library of Congress
A 1849 print by N. Currier portraying the scene on the Harlem River showing the High Bridge in the distance one year after its completion.
Credit: Jervis Public Library-‐ Rome, NY
A watercolor drawing showing the design of a proposed pile driver to be used in sinking pilings for the foundations of masonry piers of the High Bridge. Some of the piers rest, even now, on these wooden pilings. Pier number 10 was reported to have 240 individual piles beneath it in the river bottom, supporting the immense weight of 100 feet high masonry above.
Credit: Jervis Public Library-‐Rome, NY
Watercolor drawing for a small derrick for use in building the High Bridge, shown lifting stone work.
Credit: Tom Tarnowsky
A current photo of 3 arches of the High Bridge after its recent renovation.
Credit: Mariners Museum-‐ Newport News, Va.
An 1860 photograph of the enlargement of water mains on the High Bridge with a 90 inch pipe added to supply the rapidly growing city in its demand for more water. The Brooklyn contractor was the same who built the iron clad warship, Monitor, during the Civil War.
An official report by the New York Board of Alderman in 1842-‐43 describing challenges in building the foundations for some of the piers of the High Bridge across the Harlem River. 240 wooden piles were driven into the river bottom to support pier #10.
Credit: Jervis Public Library-‐Rome, NY
Chief Engineer John B. Jervis informed the Water Commissioners in 1848 that it would be necessary to place an iron railing over the High Bridge for the safety of the public who would “hereafter visit it.”