The Croton on Its Way to Town — Harper's Magazine (1860) Engraving showing the Croton Aqueduct route as it carries water toward Manhattan. From T. Addison Richards' comprehensive article in Harper's, December 1860. The aqueduct traveled 41 miles by gravity from the Croton Dam to the receiving reservoir in Manhattan. Date: December 1860 Type: engraving Subjects: Croton Aqueduct, pathway, people, …