Old Croton Aqueduct, Mill River Waste Weir, U.S. Route 9 at Sleepy Hollow Cemetery, Tarrytown, Westchester County, NY

Significance: The Old Croton Aqueduct is an outstanding example of 19th century civil engineering and was New York City's first municipal water project. The waste weir formed an integral part of the aqueduct system, by stopping or diverting water in the system. It also served as a ventilator.

Unprocessed Field note material exists for this structure: FN-22; FN-28

Survey number: HAER NY-113

Building/structure dates: 1840 Initial Construction

National Register of Historic Places NRIS Number: 74001324

aqueducts weirs civil engineering hydraulic engineering tarrytown croton aqueduct old croton aqueduct mill mill river waste weir sleepy cemetery westchester westchester county new york jack boucher daniel clement historic american engineering record john b jervis photo sleepy hollow cemetery building plans library of congress architectural diagrams national register of historic places

1969 - 1980

Library of Congress

http://www.loc.gov/

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