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FACT SHEET-Hudson River, New York Operations & Routine Maintenance of Troy Lock & Dam

O&C - Operations and Routine Maintenance of Troy Lock & Dam

U.S. Army Corps of Engineers, New York District
Published Dec. 20, 2023

DESCRIPTION:  A channel 600 ft. wide, New York City to Kingston, thence 400 ft. wide to 2,200 ft. south of the Mall (Dunn) Bridge at Albany and anchorages near Hudson and Stuyvesant, all with depths of 32 ft. in soft material and 34 ft. in rock; thence 27 ft. deep and 400 ft. wide, 900 ft. south of the Mall (Dunn) Bridge: thence 14 ft. deep and generally 400 ft. wide, to the Federal Lock at Troy; and thence 14 ft. deep, 200 ft. wide, to the southern limit of the State Barge Canal at Waterford: with widening at bends and widenings in front of the cities of Troy and Albany to form harbors 12 ft. deep. Length - N.Y.C. to Waterford about 155 miles. The project included removal of the State Dam at Troy and the construction of a new lock and dam at Troy, about 2.5 miles below Waterford. The project construction is complete.

AUTHORIZATION:  House Document 719, 81st Congress, 2nd Session (Jun 1910) and modified by House Document 350, 88th Cong., 1st Session (Mar 1925); House Document 210, 70th Cong., 1st Session (Jul 1930); SD 155, 72nd Cong., 2nd Session (Aug 1935); House Document 572, 75th Cong., 3rd Session (Jun 1930); and PL 780, 83rd Cong., 2nd Session (Sep 1954).   

BACKGROUND:  The Lock’s four miter gates were replaced during Winter 2017-2018 lock closure. Adjustments to the gates occurred during Winter 2018-2019. There is a Periodic Inspection of the Lock and Dam conducted every 5 years, with the last inspection completed in FY 2019. Contract for replacement of the steel lock filters and repairs to stoplog dam recesses is being solicited, with replacement of lock filters to be completed FY2025 and repairs to recesses to be completed FY2026. A site stabilization investigation was conducted in FY2024, with results pending. The existing electrical system and lock operating PLC system is over 30 years old and unsupported for service maintenance, with obsolete components no longer available for in-kind replacement.

STATUS:  FY2024 funding will be used to perform ongoing routine operations & maintenance activities at the Troy Lock, initiate design for replacement of PLC system and upgrade of electrical system, award contract for repairs to the stoplog dam recesses and steel lock filters, and replacement on the automatic transfer switch to the emergency generator.


Laura Lozon,

Project Engineer

Phone: (518) 273-0870

Email: Laura.P.Lozon@usace.army.mil

U.S. Army Corps of Engineers, New York District,

Albany Field Office

1 Bond Street

Troy, NY 12180


Congressional Districts: NY #19, 20 and 21