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Ideas began about damming the Clutha
Investigations begin about whether the Clutha River could potentially be dammed. -
Roxburgh dam stated to get built
Construction/building of the Roxburgh dam begins. -
Lake Hawea got put in
Lake Hawea control dam is complete and put into use. Lake Hawea rises by 20m. -
Ideas about 30 dams on the Clutha
Huge investigations into building more dams from the lakes to the sea on the Clutha River.
30 proposed dam sites, 20 of these were costed out. -
People were worried about the enviroment
Reports are submitted outlining the environmental effects of damming the river. This is when a lot of the protesting began. -
Clyde dam site was selected
A site is selected for building the Clyde Dam -
Bulldozers came
Bulldozers come in and start groundwork for the dam before ‘Water Right’ has been granted. -
Water rights said they can have a low dam
Later - Water Right is granted but for a low dam, not a high dam (which was what was being built) -
They started building
Building begins on the right side of the dam (abutment - large concrete construction) -
Goverment agrees to a high dam
Government agrees to the construction of a high dam. -
Goverment puts out quotes
Government puts a tender out for the building of the dam. 7 recieved back - -
They got a quote for 102.6 million dolars
A tender is accepted at a cost of 102.6 million dollars. -
Falt line discoverd
The fault line is discovered and the dam is redesigned to cope. This is the ‘slip joint’ that is located halfway across the dam. This allows for 2m of sideways and 1m of vertical movement. -
1000 workers on site
Work on the dam peaks with over 1000 workers being employed on site. -
Preventing rock falls
Gorge stabilization work is completed. This is another extra cost. -
Dam complete
The dam is complete and the reservoir is filled flooding the Cromwell gorge.