The federal government plans to replace the Quebec side of the Timiskaming dam and bridge and is taking comments from the public as part of an environmental assessment (EA).

The Impact Assessment Agency of Canada has a federal EA underway and is taking comments up until May 3.

The dam and bridge is situated on either side of Long Sault Island and spans the Ottawa River between Thorne, Ont. and Timiskaming, Que. 

The dam controls the water level in Lake Timiskaming, upstream, and the flow of the Ottawa River, downstream. The structure also controls the last major reservoir on the Ottawa River upstream of the St. Lawrence River at Montréal and provides water storage for hydroelectric generation downstream.

Ontario Highway 63 runs across it as well as a natural gas pipeline.

The original dam complex was built between 1909 and 1913. It’s comprised of two structurally independent dams.

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