early in the spring, under contract, to raise the same so high by the 1st of November following, as to throw at least two feet of water into the tunnel of the aqueduct. This requirement of their contract they have…

…Jeffrey Cooley Elevation of A High Bridge for Crossing Hariaem [sic] River, c. 1839-40 watercolor and Ink on paper Courtesy Jervis Public Library, Rome, NY. Photo: G.R. Farley The Old Croton aqueduct Rural Resources Meet Urban Needs The…

…The Commissioners, who had in vain sought the instruction of the Common Coun- cil on this vexed question, of a high or low bridge, and who had at last, on their own re- sponsibility, decided in favor of the low…

…McCullough, Black & Co., early in the spring, under contract, to raise the same so high by the 1st of November following, as to throw at least two feet of water into the tunnel of the aqueduct. This requirement of their…

…The high bridge I have heretofore en- deavored to avoid, as a work of great expense, and attended with much difficulty in its execution. From the considerations before detailed, I have however come to the conclu- sion, that under the…

…CLENDENING BRIDGE This bridge is constructed over a valley of the same name, that is situated about equally distant between Manhattan valley and the receiving reservoir. The greatest depression is 50 feet, below top of aqueduct, and the valley is…

…The conduit associated with the Old Croton Aqueduct is carried across the river inside of the High Bridge, while the conduit associated with the New Croton Aqueduct is buried deep beneath the river, its presence completely imperceptible. In certain locations…

…piers, more or less high ; it was upon the third range that the water channel was formed according to some antiquaries. According to the measurement of a French engineer, the height of this aqueduct bridge is about 157 feet above…

…The most imposing is the crossing of Harlem River, either by an aqueduct bridge, or by inverted syphons ; next, carrying the aqueduct over Manhattan Valley ; and last, though not least, the erec- tion of the receiving and distributing reservoirs in…

various partners and constituents, the High Bridge is slated to be restored and reopened for public use by 2013. website: http://www.nycgovparks.org/sub_ your_park/highbridge/html/hb_coalition_programs.html an exposed section of the aqueduct tunnel…

…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…

…Old/ New Croton Aqueduct Sign Current Designation(s) MANHATTAN VALLEY SIPHON c 1840 Plate 30-4, Old Croton Aqueduct Residing 105 feet below the Old Croton Aqueduct’s grade, Manhattan Valley, two miles south of High Bridge, was traversed by…

…For 39 154 MEMOIR OF THE crossing the Manhattan Valley, three lines are designated, and an estimate furnished for carrying the aqueduct on a high bridge from the north to the south grade. The first line runs diagonally from 128th…

…cost of the aqueduct, from the Croton dam to the distributing reservoir inclusive, will be nearly 9,000,000 of dollars, New- York, 27th July, 1842. The unfinished portions of the work, chiefly on the Harlem bridge, have been steadily…

…Rhodes addressed a letter to the Chairman of the Commissioners, in which he says, " The natural abutments and high hills 32 MEMOIR OF THE near the Quaker Bridge, will give an elevation of 200 feet above the tide, if required…

…The next important work in order, is the Aqueduct Bridge, across the valley of Sing Sing Kill. This requires an arch of eighty feet span and twenty-five feet rise, resting on abutments of stone masonry, and is intended to…

…In 1746, the project of building a bridge near the site of this aqueduct was, fortunately for its further stability, modified so as to be built adjoining to it. M. Petot proposed to form this bridge on the eastern face…

…161, 199 Alley, Saul, 116, 178 Aqueduct, Croton,....106, 24, 37, 39,41, 56, 202, 4, 17 Artesian Wells 104, 11 Baldwin, Loami, 129 Birdsall, Benjamin, 272, 99 Bridge, Quaker, 126 Bridge, High, .... 150, 6, 64, 5, 8, 9, 75…

…Old Croton Aqueduct, National Register of Historic Places (1974) 4. Old Croton Aqueduct running from Croton to New York City, National Historic Landmark in (1992) 5. The High Bridge Aqueduct and Water Tower, National Register of Historic Places (1972) 6…

…Tower, Croton Aqueduct at Haarlem River (High Bridge), C.1842, ink witli watercolor wash on paper Courtesy Mrs. Helen Tower Wilson. Photo: T. Harnik Canal. Within 2 years fie succeeded Wright as chief engineer. Upon completion of the Delaware and…

…high bridge over the Harlem River, reappears in this report, as a difficult, costly, and not necessary work — and inasmuch as the plan agreed upon by the former Commis- sioners, was not to continue the grade line of the aqueduct…

…the masonry of the 23 Aqueduct : upon the bottom of this trench was laid a mass of masonry 1 foot thick, upon which two walls were built, each li foot thick and 5i feet high, these walls standing 2 feet…

…The total capacity of delivery of the aqueduct is about 50 millions of gallons for 24 hours, but in case the lake is being reduced seven feet, by a discharge through the aqueduct, not more than 35 millions can be…

…AQUEDUCT BRIDGE AT SING SING. The Sing Sing kill,, where it crosses the line of aqueduct, runs in a deep and narrow gulf, the bottom of which is 63 feet below the grade line, or 76 feet below the top…

…The Croton Aqueduct itself became something of a tourist attrac- tion. Many climbed atop the Distributing Reservoir on 42nd Street to enjoy the view of the City spread out before them, and the Harlem River High Bridge became a favorite…

…Water Commissioners over the aqueduct to its termination at Murray's Hill. 3d. To authorise the Commissioners, with the assent of the Common Council, to change the plan of crossing the Harlem on a high bridge, to inverted syphons and…

…The High Bridge was not completed until 1848. Notes 1. Charles King, A Memoir of the Construction, Cost, and Capacity of the Croton Aqueduct (New York, 1843), p.220. 2. See selected bibliography on tlie construction of the Croton Aqueduct…

…County Clerk Section of the Aqueduct with Iron Lining, c. 1837-39 Ink and watercolor on paper; 14^4 x 17 V2 inches Jervis Public Library. Rome, NY, drawing #205 Possibly by John B. Jervis. Croton Aqueduct — Detail of Iron…

…aqueduct arriving at the summit of the hill, was stated to deliver its water into a tank, or reservoir, placed in a square tower. This reservoir, fourteen feet long by four and a half feet wide, is seven feet high…

…The first contracts for work on the aqueduct, were made in April, 1^37, at which < time about ten miles of the upper end was advertised, but in consequence of the propo- sals being considered too high, only about half…