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We have finished building the Site C earthfill dam. Completing the dam is one of the essential milestones required before filling the reservoir. | July 2023
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The earthfill dam will direct water from the Peace River to the approach channel, which will then lead into the powerhouse to generate power. | July 2023
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Most of the material for the earthfill dam was taken directly from the dam site, while other material was sourced locally and transported to the dam on a five-kilometre-long conveyor belt. | July 2023
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It took two years to build the dam, which is 60 metres tall (about 20 storeys) and stretches over one kilometre across the Peace River. | July 2023
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The earthfill dam nears completion. | July 2023
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View over the top of the intake structure. Each penstock has an intake gate which can be lowered to close the unit for maintenance. | July 2023
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The floor inside the intake gantry crane folds back so the crane can lift the intake gate. | July 2023
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Top view of the permanent fish passage facility, located at the tailrace where migrating fish are attracted to fast water. Inside the facility, fish will be weighed, measured, tagged, and sorted. They are then transported for release upstream of the dam.
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The baffles on the exterior of the permanent upstream fish passage facility are a place for fish to rest in the current of the fast water leaving the generating station. These baffles also disturb the water to attract the fish. | July 2023
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Lynx Creek boat launch and day use area. | July 2023
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The spillway structure has three large upper spillway gates and six lower-level spillway gates. | July 2023
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The west stilling basin has a patchwork of concrete placements to cover the bottom of the basin, since the area is too large for a single concrete placement. | July 2023
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The outer weir is on the outside, or downstream, of the stilling basin weir. It slows down the water leaving the spillway before it enters the river. | July 2023
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Diversion tunnel two is closed and drained to begin the process of reservoir filling. | July 2023
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The recently drained tunnel was inspected before installing four large rings. When the rings are in place, diversion tunnel two will reopen but the water flow will be restricted. | July 2023
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Scaffolding is in place in the diversion tunnel so workers can install the rings needed to slow the flow of water. This starts the process of conversion for reservoir filling. | July 2023
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A forklift moves a section of the restricting plate in the diversion tunnel. | July 2023
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Construction continues in the powerhouse and approach channel. | July 2023
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The auxiliary spillway safely handles overflow water, without the need for power. | July 2023
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Construction continues in the basin of the auxiliary spillway. | July 2023
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Construction continues on the dam buttress, intakes, mechanical spillways, the auxiliary spillway, and the spillway end-wall. | July 2023
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D.A. Thomas Road in Hudson’s Hope will be upgraded to provide access to the new recreation area being built. | July 2023
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A car-topper boat launch and recreation area is being built at the base of D.A. Thomas Road in Hudson’s Hope. | July 2023
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Rock armouring, or riprap, protects the reservoir shoreline from erosion at the Lynx Creek Bridge on Highway 29. | July 2023
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Wave-protection using riprap at the west abutment of the Lynx Creek Bridge realignment on Highway 29. | July 2023
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The Lynx Creek boat launch and day use area is being built near Hudson’s Hope on Highway 29. A breakwater will be installed to protect the launch against waves. | July 2023
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The Halfway River boat launch and day use area is under construction. | July 2023
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Panorama of spillways, powerhouse and generating station, completed earthfill dam, and diversion tunnel outlet portals. | July 2023
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View of the downstream side of the earthfill dam, from the temporary fish passage. | July 2023
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The completed dam is about 20 storeys, or 60 metres, tall. It stretches one kilometre across the Peace River. | July 2023
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At left is the upstream side of the dam. The Peace River is flowing into the diversion inlet portal around the dam. | July 2023
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Riprap will protect the upstream shell of the dam. At centre right, the upstream debris management ramp is being built. | July 2023
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Facing west across the auxiliary spillway along the center wall of the approach channel. | July 2023
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Concrete finishing will complete the basin of the auxiliary spillway. | July 2023
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Formwork and reinforcing steel are installed on the auxiliary spillway chute to pour concrete. | July 2023
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Formwork and reinforcing steel are installed on the auxiliary spillway chute. | July 2023
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View over the east stilling basin weir and the downstream weir. | July 2023
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Blue draft tube maintenance gates are being installed at the tailrace, through which the water will be flowing. | July 2023
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Formwork and reinforcing steel are placed for the concrete bench at the tailrace. This concrete will prevent the water from eroding the underlying material. | July 2023
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Workers install formwork and reinforcing steel on the tailrace bench. | July 2023
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The outer weir is on the outside, or downstream, of the stilling basin weir. Water exiting the spillways is slowed by these two weirs before entering the Peace River. | July 2023
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Inside the diversion tunnel, the ring segments have been lifted into position and welded. | July 2023
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Segments of the ring are hoisted into position and welded. Crews will complete the welds to the embedded steel in the tunnel walls. | July 2023
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