roton Dam. One billion gallons per day are passing through the dam. Looking Northeast Through Spillway Gap. e water seen in the river has passed out through the three four-foot blow-off pipes. m the Crest of the Spillway. … y Across an Arm of the Reservoir. Croton Lake at.its Broadest Point; 20 Miles Long and Holding 30,000,000,000 Gallons, HE WATER SUPPLY OF NEW YORK CITY.
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