Since their construction in 1912, Ranney Falls Locks have gone through a number of rehabilitation projects, with the last major project being completed in 2002.  Presently, Parks Canada is completing work on Ranney Falls Locks 11 and 12 which consists of the replacement of new cast iron valves and hinges for the gates. Work will enhance the overall operational reliability of the lock while improving its condition and extending its service life.

Construction was completed in spring 2019.

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