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Rideau Falls (East dam)

"The Rideau Falls are two waterfalls located in Ottawa, Ontario, Canada, where the Rideau River empties into the Ottawa River. The falls are divided by Green Island, with Ottawa's Old City Hall just to the south. The falls were named by the early French for their resemblance to a curtain, or rideau in French. The Rideau River was later named after the falls. The Rideau Canal was constructed to bypass these falls and the Hog's Back Falls." [1]

"The Rideau Falls Dam Complex is comprised of an east and west dam constructed in the 1800s to manage water levels on the Rideau River. The east dam was partially replaced in 1968, and the west dam was entirely reconstructed in 1998. The dams regulate water levels and flows in the Rideau River between Hog’s Back Falls and Rideau Falls. Each spring the dams are involved in the City of Ottawa’s ice clearing operations. Ice clearing prevents ice jams and minimizes damage to utility lines, bridge structures, park land, homes and other buildings along the banks of the Rideau River.

Public Services and Procurement Canada owns the early-19th-century hydroelectric power generating station on the east bank of the east dam and leases it to Hydro Ottawa. The department manages water levels in coordination with Parks Canada and the Rideau Valley Conservation Authority. A contractor operates flow control equipment at the dams, which consists of mechanical gates at 2 sluices as well as stop logs at 10 other sluices." [2]

Sources: [1] <a href="https://en.wikipedia.org/wiki/Rideau_Falls" rel="nofollow">en.wikipedia.org/wiki/Rideau_Falls</a>