Significance(s) Interpretation Sign Current Designation(s) NORTH GATEHOUSE Plate 32-3, Old Croton Aqueduct Current Designation(s) Positioned on the northwestern edge of Lake Manahatta and at 72 X 40, the North Gatehouse serves as the inlet feet of the aqueduct into the reservoir. 27 NORTH TARRYTOWN KEEPER’S HOUSE STABLE Plate 22, Old Croton Aqueduct Type Part of the complex allotted to the overseer of the North Tarrytown section of the Old Croton Aqueduct. Type Significance(s) Interpretation Sign OLD CROTON DAM 1838-1841 (Submerged) Plate 13-, Old Croton Aqueduct Interpretation OLD CROTON DAM GATEHOUSE 1838-1841 (Submerged) Plate 13-, Old Croton Aqueduct Sign Significance(s) Part of the complex allotted to the overseer of Croton Dam. Sign OLD CROTON DAM KEEPER’S HOUSE (Submerged) Plate 13-, Old Croton Aqueduct The dwelling house of the overseer of the Croton Dam. Significance(s) Current Designation(s) OLD CROTON DAM BARN (Submerged) Plate 13-, Old Croton Aqueduct Interpretation Current Designation(s) Type 28 Sign Current Designation(s) Type Originally designed with earthen embankments flanking a masonry dam, the Old Croton Dam suffered damage in a flood during construction. The plans were modified and a 250 foot long dam of continuous stone was built. Fifty feet high, the profile of the dam was curved in form so that the water flowed in a stunning fashion. Significance(s) Interpretation A stone structure with an inlet chamber connected to a tunnel leading from the Old Croton Dam. The masonry conduit began at the outlet chamber of this gatehouse. Current Designation(s) Type Significance(s) Current Designation(s) Interpretation Sign Part of the complex allotted to the overseer of Croton Dam. Significance(s) Interpretation Sign OLD CROTON DAM WASTE WEIR 1838-1841 (Submerged) Plate 13-, Old Croton Aqueduct Accessed by a bridge, the overflow weir was protected by a small stone building. Inside, two sets of gates were capable of drawing water from Croton Lake at a greater depth. Significance(s) Sign Current Designation(s) OSSINING KEEPER’S HOUSE (Demolished) Plate 20-3, Old Croton Aqueduct A two story dwelling with a porch that functioned as the home of the overseer of the Ossining section of the Old Croton Aqueduct. Current Designation(s) Type Interpretation Interpretation Sign Current Designation(s) OLD OSSINING WEIR 1837-1842 Plate 20-2, Old Croton Aqueduct In a style similar to the other five weirs constructed for the Old Croton Aqueduct, the excess water exited through a stone wall shoring up the aqueduct. It was also used to measure the water in the aqueduct. Type Significance(s) Interpretation Structure Guide Type Significance(s) Appendix Type OLD CROTON DAM STABLE (SUBMERGED) Plate 13-, Old Croton Aqueduct Sign Current Designation(s) OSSINING KEEPER’S HOUSE BARN (Demolished) Plate 20-5, Old Croton Aqueduct Part of the complex allotted to the overseer of the Ossining section of the Old Croton Aqueduct. Type Significance(s) Interpretation Sign Current Designation(s) For more information, see fiche on page XXX. 29 OSSINING KEEPER’S HOUSE STABLES (Demolished) Plate 20-4, Old Croton Aqueduct Type Part of the complex allotted to the overseer of the Ossining section of the Old Croton Aqueduct. Type Significance(s) Interpretation Sign Located on a city block adjacent to the East River, the pipe yard provided a storage area for piping and other aqueduct appurtenances. Interpretation Sign Current Designation(s) POCANTICO GATEHOUSE c 1890s Plate 22-13, New Croton Aqueduct A masonry substructure with a 37 X 55 foot chamber divided by an overflow weir, the Pocantico Gatehouse is similar in form to the two other gatehouses placed between Croton Lake and the Harlem River. Here, the waste water passes through a 15 foot culvert to the Pocantico River west of the aqueduct. 30 Sign Current Designation(s) POCANTICO OPEN-CUT c 1888 Plate 22-11, New Croton Aqueduct Type PIPE YARD (Demolished) Plate 34-1 Significance(s) Interpretation A portion of the New Croton Aqueduct was run through an open trench when soil and rock conditions were not conducive to boring. Current Designation(s) Type Significance(s) Significance(s) Interpretation Sign Current Designation(s) QUAKER BRIDGE DAM Plate 18-5 Four miles south of the Old Croton Dam in a narrow portion of the Croton River, the Quaker Bridge Dam was designed to increase the capacity of Croton Lake. Never built in that spot, a location further north was chosen instead. The New Croton Dam resembles the design for the Quaker Bridge Dam, the only essential changes being that it is not as tall and that the polygonal faces have been rounded off. Type Significance(s) Current Designation(s) Interpretation Sign Type Type Significance(s) Interpretation Sign Interpretation Sign Current Designation(s) SAW MILL RIVER BRIDGE 1838-1839 Plate 27-2, Old Croton Aqueduct The stone arch spanned 16 feet across a road at Saw Mill River. Type Current Designation(s) RESERVOIR PARK 1871 (Renamed Bryant Park 1884) Plate 32-12 Significance(s) Interpretation Sign Current Designation(s) Reservoir Park occupied the land made vacant by the burning of Crystal Palace. Originally formal in design, the park was redesigned on several occasions. As part of a WPA initiative, Bryant Park,