On the 20th January, 1843, the then Commissioners made their final report, which, announced the completion of the Croton Dam, and that it had undergone, without freshet caused by the warm rains, and the breaking damage, the test of a full ordinary up of the ice in the early part of January. The utmost rise of the water above the dam was 25 inches although, according to estimate, a million gallons per minute passed over ;
it, exclusive of that which escaped through the waste culvert of the dam, and through the
aqueduct. This quantity of waste water, was one hundred and twenty times more than that brought to the city by the aqueduct.
" The foundations The Harlem bridge was reported to be in satisfactory progress. " are of all the land piers, on both sides of the river," says the Report, completed, and the masonry of several of them is carried to a considerable height, presenting an appearance of great solidity and beauty. The foundations of five of the river-piers, Nos. 7, 8, 9, 10 and 11, are also completed, and the stone work of the first four has been carried to the the last, No. 11, is nearly ready to receive the masonheight of forty feet or more, and ry. The work upon the two remaining foundations, Nos. 12 and 13, is in progress. The excavation for No. 12 is completed, and a large part of the bearing piles are driven. The contractors have recently erected another steam engine for the purpose of pumping