Weir at the Croton Dam — F.B. Tower (1843) Tower's plate showing the weir (water measurement structure) at the Old Croton Dam. The weir measured the flow of water entering the aqueduct, ensuring adequate supply for the city while maintaining the reservoir level. Date: 1843 Location: Croton-on-Hudson, NY Type: engraving Subjects: Croton Dam, weir, aqueduct, landscape Text visible in image: Tower'…