How do you make a dam wall 3 metres higher?

The latest video clip from the construction site at Suma Park dam reveals the practicalities of raising the height of a dam wall.

Orange City Council, with funding support from the NSW Government, is raising the height of the dam wall by 3 metres on the sides and 1 metre over the spillway. The higher wall boosts the water capacity of the dam by 10%.

The latest clip shows how giant L-shaped wall extensions are gently placed into position.

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You can see more clips about the dam upgrade project here.