feet above the river bed. The 25 foot span allows free passage along Mill River under the aqueduct. Significance(s) Interpretation Imposing and massive, the Egyptian Revival reservoir contained two collection pools with a capacity of 24 million gallons of water. City dwellers frequently took advantage of the generous promenade atop the structure for its views of Manhattan. Current Designation(s) Type Significance(s) Type Significance(s) Interpretation Sign Current Designation(s) Sign MUSCOOT DAM 1905 Plate 15-, New Croton Aqueduct Current Designation(s) MILL RIVER WASTE WEIR 1837-1841 Plate 22-6, Old Croton Aqueduct Spanning a depression 72 feet below grade, the Mill River Culvert’s 172 foot long embankment reaches 87 feet above the river bed. The 25 foot span allows free passage of Mill River under the aqueduct. 24 Sited at the division of the New Croton Reservoir and the Muscoot Reservoir, the Muscoot Dam ensures that the latter was maintained at a sufficient depth. Type Significance(s) Current Designation(s) Interpretation Sign MUSCOOT RESERVOIR GATEHOUSE 1905 Plate 15-, New Croton Aqueduct The Muscoot Reservoir, capable of impounding 5 gallons of water, is the collection point for all reservoirs in the Croton Watershed, with the exception of the New Croton Reservoir. The gatehouse regulated the flow of the Croton Watershed into the New Croton Reservoir, where it entered the New Croton Aqueduct conduit. Significance(s) Interpretation Sign Current Designation(s) Type Significance(s) Interpretation Sign Current Designation(s) MUSCOOT RESERVOIR BARN c 1905 Plate 15-, New Croton Aqueduct NEW CROTON DAM 1892-1906 Plate 18-2, Old/ New Croton Aqueduct Part of the compound allotted to the overseer of the Muscoot Reservoir. Located three miles south of the Old Croton Dam, the central masonry dam is 600 feet long and is paired with a dramatic 1000 foot long overflow weir. The Old Croton Aqueduct crosses the line of the dam on the south side of valley. Type Significance(s) Interpretation Sign Structure Guide Type Appendix MUSCOOT RESERVOIR 1905 Plate 15-, New Croton Aqueduct For more information, see fiche on page XXX. Current Designation(s) Type Significance(s) Interpretation Sign MUSCOOT RESERVOIR FOREMAN’S HOUSE c 1905 Plate 15-, New Croton Aqueduct A structure serving as the dwelling house of the overseer of the Muscoot Reservoir. Type Significance(s) Interpretation Current Designation(s) Sign Current Designation(s) 25 NEW CROTON DAM GATEHOUSE 1892-1906 Plate 18-3, New Croton Aqueduct NEW CROTON GATEHOUSE 1890 Plate 13-, Old/ New Croton Aqueduct Constructed on the upstream side of the New Croton Dam, the masonry substructure is divided into three water chambers. Provided with five different inlets drawing water from different points and depths of the New Croton Reservoir, the gatehouse controls the inlet of water into the Old and New Croton Aqueducts. Type Significance(s) Interpretation Sign Type Significance(s) Interpretation Sign Current Designation(s) NEW CROTON DAM OVERFLOW WEIR 18921906 Plate 18-1, New Croton Aqueduct Parallel with the contour lines of the hillside, the stepped overflow weir is a dramatic feature of the New Croton Dam. Type Significance(s) Interpretation Sign Current Designation(s) NEW CROTON RESERVOIR 1892-1906 Plate 13-, New Croton Aqueduct Following the contours of the valley, the New Croton Reservoir absorbed Croton Lake and the Old Croton Dam, ultimately achieving a capacity of 20 billion gallons of water. For more information, see fiche on page XXX. Current Designation(s) Type Significance(s) Current Designation(s) 26 Interpretation Sign Type For more information, see fiche on page XXX. Type Significance(s) Interpretation Sign NORTH GATEHOUSE Plate 32-4, Old/ New Croton Aqueduct Significance(s) NORTH TARRYTOWN KEEPER’S HOUSE Plate 22, New Croton Aqueduct The dwelling house for the overseer of the North Tarrytown section of the Old Croton Aqueduct. Interpretation Significance(s) Interpretation Sign Current Designation(s) With a granite superstructure, the eastern North Gatehouse forms the terminus of the pipe line of the New Croton Aqueduct in Central Park. Type Sign Current Designation(s) Type Current Designation(s) Interpretation Structure Guide Egyptian Revival in style, the New Ossining Weir was built to avoid updating the Old Ossing Weir. Within the 20 X 10 foot stone structure, water from the Old Croton Aqueduct could be discharged. Significance(s) Appendix NEW OSSINING WEIR 1881-1886 Plate 20-7, Old Croton Aqueduct Sign NORTH TARRYTOWN KEEPER’S HOUSE BARN Plate 22, Old Croton Aqueduct Part of the complex allotted to the overseer of the North Tarrytown section of the Old Croton Aqueduct. Type 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