| 1. | Surge tanks on each headrace tunnel help prevent water hammer.
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| 2. | Navigation of the Shannon is now by the headrace canal which is wide.
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| 3. | The dam and headrace are laid out along natural rock formations in the river.
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| 4. | Feeding water to the penstocks is a long headrace tunnel with a three gate intake structure.
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| 5. | The dam diverts water east into three long and diameter headrace tunnels towards the actual power station.
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| 6. | They are fed by an underground headrace branched off from the canal in front of the northern wing.
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| 7. | Each headrace tunnel connects to a steel-lined penstock, each of which later bifurcates into two penstocks.
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| 8. | The major axis of the diversion dam is north to south and connects to a headrace which heads southeast.
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| 9. | In mid-2008, the Keldu�rst�fla and Ufsarst�fla Dams were complete and the Ufsarl�n pond headrace tunnel was ready.
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| 10. | A long headrace tunnel connects the reservoir to the power station which contains three 48 MW Francis turbine-generators.
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