continuation of the Sodom Auxiliary Dam, the overflow weir stretches 500 feet and is 8 feet high. Type Significance(s) Interpretation Current Designation(s) Sign Current Designation(s) 41 SOUTH YONKERS GATEHOUSE c 1888 Plate 28-XX, New Croton Aqueduct Type A masonry substructure with a 37 X 55 foot chamber divided by an overflow weir, the South Yonkers Gatehouse is similar in form to the two other gatehouses placed between Croton Lake and the Harlem River. Here, Tibbit’s Brook, into which the waste water is discharged, passes under the gatehouse through two circular culverts. Type Significance(s) Interpretation Sign Current Designation(s) Interpretation Sign Current Designation(s) TIBBIT’S BROOK CULVERT c1840 Plate 28-XX, Old Croton Aqueduct At the crossing of Tibbit’s Brook, a culvert is constructed with a 107 foot long embankment with a bed 40 feet below the Old Croton Aqueduct conduit. 42 Sign Current Designation(s) TITICUS DAM 1890-1895 Plate 7-, New Croton Aqueduct The Titicus Dam stretches 1,519 feet. The masonry portion, including the spillway, is 732 feet long and is flanked by earthen portions. The granite used on Titicus Dam came from a quarry opened nearby. Type A portion of the New Croton Aqueduct was run through an open trench when soil and rock conditions were not conducive to boring. Significance(s) Interpretation For more information, see fiche on page XXX. SOUTH YONKERS OPEN-CUT c 1888 Plate 28-XX, New Croton Aqueduct Type Significance(s) Significance(s) Interpretation Sign Current Designation(s) TITICUS DAM GATEHOUSE 1890-1895 Plate 7-, New Croton Aqueduct Constructed on the upstream side of the masonry dam, the 32 X 35 foot granite gatehouse regulates the flow of the Titicus Reservoir. Type Significance(s) Current Designation(s) Interpretation Sign A dwelling house for the engineer of the Titicus Reservoir. Type Significance(s) Interpretation Sign VAN CORTLANDT PARK KEEPER’S HOUSE (Demolished) Plate 28-, Old Croton Aqueduct A dwelling house for the overseer of the Van Cortlandt Park section of the Old Croton Aqueduct. Significance(s) Interpretation Sign Current Designation(s) Current Designation(s) TITICUS RESERVOIR 1890-1895 Plate 7-, New Croton Aqueduct The damming of the Titicus River created a reservoir capable of storing 7 billion gallons of water. For more information, see fiche on page XXX. Type Significance(s) Interpretation Structure Guide Type Appendix TITICUS ENGINEER’S HOUSE c 1895 Plate 7-, New Croton Aqueduct VAN CORTLANDT PARK KEEPER’S HOUSE BARN (Demolished) Plate 28, Old Croton Aqueduct Part of the complex allotted to the overseer of the Van Cortlandt Park section of the Old Croton Aqueduct. Sign Type Significance(s) Interpretation Sign Current Designation(s) Current Designation(s) VAN CORTLANDT PARK 1888 Plate 28 Parkland in the Bronx containing the Nation’s first public golf course. Type Significance(s) Interpretation Sign Current Designation(s) 43 VAN CORTLANDT PARK KEEPER’S HOUSE STABLE (Demolished) Plate 28-, Old Croton Aqueduct Part of the complex allotted to the overseer of the Van Cortlandt Park section of the Old Croton Aqueduct. Type Significance(s) Interpretation Sign Current Designation(s) VAN CORTLANDT PARK WEIR Plate 28, Old Croton Aqueduct The Van Cortlandt Park Weir, like the six others built at the time of the construction of the Old Croton Aqueduct, controlled the waste of water from the aqueduct. For more information, see fiche on page XX. Type Significance(s) Interpretation Sign Current Designation(s) VENTILATORS 1838-1841 Old Croton Aqueduct Cylindrical in form, the ventilators were placed every mile or so on the Old Croton Aqueduct. While their purpose was to provide ventilation to the masonry conduit beneath them, several ventilators were constructed with entrances to the tunnel. 44 Ventilator 1 (Submerged or demolished) Ventilator 2 (Submerged or demolished) Ventilator 3, Plate 18-4 Ventilator 4, Plate 18-6 Ventilator 5, Plate 18-8 Ventilator 6, Plate 20-1 Ventilator 7, Plate 20-9 Ventilator 8, Plate 20-10 Ventilator 9, Plate 22-3 Ventilator 10, Plate 22-5 Ventilator 11, Plate 22-8 Ventilator 12, Plate 23-1 Ventilator 13, Plate 23-2 Ventilator 14, Plate 23-3 Ventilator 15, Plate 23-4 Ventilator 16, Plate 24-1 Ventilator 17 (Demolished), Plate 24-6 Ventilator 18, Plate 26-1 Ventilator 19, Plate 25-1 Ventilator 20, Plate 25-3 Ventilator 21, Plate 25-5 Ventilator 22, Plate 28-1 Ventilator 23, Plate 28Ventilator 24, Plate 28Ventilator 25 (Demolished) Ventilator 26 (Demolished) Ventilator 27 (Demolished) Ventilator 28 (Demolished) Ventilator 29 (Demolished) Ventilator 30 (Demolished) Ventilator 31 (Demolished) Ventilator 32 (Demolished) Ventilator 33 (Demolished) For more information, see fiche on page XXX. Type Significance(s) Current Designation(s) Interpretation Sign A maintenance building allotted to the supervisor of the West Branch Reservoir. Type Significance(s) Interpretation Sign YONKERS BARN (Demolished) Plate 25, Old Croton Aqueduct Part of the complex allotted to the overseer of the Yonkers section of the Old Croton Aqueduct. Significance(s) Interpretation Sign Current Designation(s) Current Designation(s) WEST BRANCH RESERVOIR 1895 Plate 2-, New Croton Aqueduct The West Branch Reservoir was formed by the Carmel Dam. For more information, see fiche on page XXX. Type Significance(s) Interpretation Sign Current Designation(s) A dwelling house for the supervisor of the West Branch Reservoir. Significance(s) WEST