OF THE Croton Aqueduct Department, MADE TO THE COMMON COUNCIL OF THE CITY OF NEW YORK. BOARD OF ALDERMEN, JANUARY 7, 1855. NEW YORK: McSPEDON & BAKER, PRINTERS, 25 PINE STREET. 1856. Croton Aqueduct Department, ORGANIZED UNDER A LAW OF THE LEGISLATURE OF THE STATE OF NEW YORK, PASSED APRIL XI, MDCCCXLIX. Board of Management. PRESIDENT COMMISSIONER, MYNDERT VAN SCHAICK; COMMISSIONER, THEODORE R. DE FOREST; CHIEF ENGINEER, ALFRED W. CRAVEN. ENGINEER. GEORGE A. LUCAS. Bureau of Sewers and Brains, Bureau of Water Rents. REVO C. HANCE, REGISTER. WILLIAM FARDON, DEPUTY REGISTER. DOCUMENT No. 2. BOARD OF ALDERMEN. JANUARY 7, 1856. The Annual Report of the Croton Aqueduct Department was received, laid on the table, and ordered to be printed. D. T. VALENTINE, Clerk. CROTON AQUEDUCT DEPARTMENT, December 31st, 1855. To the Honorable the Common Council of the city of New York: In obedience to the 9th section of the act of 1849, amended in 1850, the Croton Aqueduct Department presents the report of the principle occurrences and transaetions of the past year, with such remarks as the occasion seems to require, and also the statistics of the department. About two miles below the dam, the aqueduct, supported by embankments, runs over a piece of low ground. In the early spring a leak was discovered by the superintendent of that division, which issued from a fissure in the bottom |