…An Aqueduct Bridge built of stone, having arches resting upon piers and abutments, was proposed so as to continue the Aqueduct across with its regular inclination. An Inverted Syphon of iron pipes was proposed ; the pipes to descend to a…

…Bennett's watercolor Fishermen at High Bridge (1844, The New York Public Library) and John William Hill's watercolor of High Bridge (figure 48), exhibited at the American Art-Union in 1848,^'' reveal their continued interest in the Aqueduct as…

…of economy induced them to build the work only high enough to comply with the requirements of the law. The plan which has been adopted for building an Aqueduct bridge across this valley is as follows : on the south shore…

…The arches of the bridge, originally designed to maintain the grade of the aqueduct, were elevated 112 feet above the high water mark of the river, which is 12 feet higher than the Act requires. It is obvious, therefore, that…

…The middle arches which are over the river de la Morgia, are about 328 feet high. On the top of this bridge is the Aqueduct which carries the water to Spoleto. This structure was difficult to execute, and being built…

…The middle arches which are over the river de la Morgia, are about 328 feet high. On the top of this bridge is the Aqueduct which carries the water to Spoleto. This structure was difficult to execute, and being built…

…he enclosed the town with new walls, built baths, and probably the Aqueduct of the bridge of Gard ("pont du Gard") for bringing water to them. This Aqueduct is nearly thirty miles in length, forming, in its course, the figure…

Law Olmsted and Calvert Vaux, Central Park embraced the Old Croton Aqueduct in design. Significance(s) Sign Current Designation(s) COAL INCLINE AND RAILROAD, HIGH SERVICE WORKS - HIGH BRIDGE 1873 (Demolished) Plate 29, Old Croton Aqueduct Supporting the High Service…

…The wall which supports the Aqueduct at this valley is 50 feet high. In this case, as in many others, the slope wall which covers the face of the embankment has an arch turned in it over the top of…

…that would become too high, and yet where a bridge was necessary, they built bridges of a height sufficient to carry the water over in syphons of easy curvature. The sources of supply of the aqueduct of Mont de Pile…

Bird's Eye Views of the Croton Aqueduct, 1879-1887 Bird's Eye Views of the Croton Aqueduct, 1879-1887 This post examines two historical perspective maps depicting New York City's water infrastructure during a critical period of urban…

…This would not carry the work up to the level of the Aqueduct, and would render it necessary to connect the Aqueduct on each side of the valley by iron pipes which would descend to the level of the bridge…

…In a report to the Water Commissioners dated February 8, 1837, the chief engineer cited both the High Falls Aqueduct on the Delaware and Hudson Canal and the Little Falls Aqueduct on the Erie Canal as examples of masonry watenway…

the system, including the 1927 adaptation to the High Bridge, the complete removal of the receiving reservoir in Bryant Park, the paving of walkways atop the aqueduct berm, and current plans to add eight-foot-high fencing to the High…

…aqueduct level ; is about 1450 feet, or a little over one quarter of a mile over which a bridge is designed ; to be constructed (and is now in progress) at an elevation of 114 feet above the level of high…

…By constructing a temporary low-level bridge, it was possible to lay Iron pipes across the Harlem River Valley allowing the Aqueduct to be opened before the completion of the High Bridge. On July 4, 1842, the first water was…

…Tower, Illustrations of the Croton Aqueduct License: Public domain

…AMAWALK FOUNTAIN 1897 Plate 9-, New Croton Aqueduct Type Significance(s) Interpretation Sign ARDSLEY OPEN-CUT c 1888s Plate 24-11, New Croton Aqueduct A single arched granite bridge stretching 160 feet, the Archville Bridge carried the Croton Aqueduct across…

…Tower, Croton Aqueduct at Haarlem River (High Bridge), c.1842 Ink with watercolor wash on paper; 4 V2 x 9 V2 inches Mrs. Helen Tower Wilson William James Bennett (1789-1844), Fishermen at High Bridge, 1844 Watercolor on paper; 12V4X…

…Martineau felt the use of inverted siphons would elimi- nate the need for the high bridge to keep a uniform grade level for the aqueduct. Douglass, in recommending the more expensive open aqueduct bridge was following the advice of Colonel…

…a high bridge; so that the abandonment of the adopted project would mean an added expense to the city of more than half a million dollars. Moreover, the original calculations of the total probable cost of the aqueduct from the…

…The resolution of your Board, requiring the undersigned to prepare plans and estimates for crossing Harlem River, by a bridge, the arches of which shall be 164 MEMOIR OF THE elevated 100 feet above common high water mark, and also…

…The depth of the river, to the rock bottom, was found to be 32 feet below high water line, near the south shore and only 20 feet on the north shore. ; The aqueduct bridge Avill have an elevation of 163…

…In the alternative to which they were driven by the Act of the Legislature, the plan of an Aqueduct bridge of masonry was adopted as the proper one for crossing the River ; but in establishing its altitude they complied only…

…found to give a discharge of water equal to that of the Aqueduct of masonry on the established inclination. In accordance with this plan of the Low Bridge the work for crossing the River was put under contract and some…

…is the Aqueduct bridge over the road from Tarrytown to Sing-Sing ; before it reaches this place it passes through three tunnels, over high foundation walls, and encounters deep excavations. Plate XIV. is a view of this bridge : it is…

…Tower, Croton Aqueduct at Haarlem River (High Bridge), c.1842 Ink with watercolor wash on paper; 4 V2 x 9 V2 inches Mrs. Helen Tower Wilson William James Bennett (1789-1844), Fishermen at High Bridge, 1844 Watercolor on paper; 12V4X…

…172 MEMOIR OF THE The Commissioners, for all sufficient reasons, preferred the high bridge to the tunnel, and without having in any degree changed their own views, as to the superiority of the syphon bridge to either, they issued a…

…Part of this ancient construction, consisting of two arches substantially built, still exists, near the modern Aqueduct. The Aqueduct bridge over the valley of Arcueil has twenty- five arches, is 72 feet high and 1,200 feet in length. In…

The aqueduct has tifteen arches, eight of which are on the river bottom. They are each eighty feet in width and one hundred feet high above flood tide. The seven shore arches have each fifty feet span. To reach the…