| 21. | The volume of rain was more than the spillway could handle.
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| 22. | The steps on stepped spillways can be used for energy dissipation.
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| 23. | It is approximately high and long ( including the spillway ).
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| 24. | There is a concrete spillway at the outflow of Hathaway Lake.
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| 25. | The spillway is repaired now, ready to take on future deluges.
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| 26. | Others say the canal's stream will naturally erode the spillway.
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| 27. | Many spillways have floodgates designed to control the flow through the spillway.
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| 28. | Many spillways have floodgates designed to control the flow through the spillway.
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| 29. | High water simply flows over the spillway and out of the canal.
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| 30. | The spillway and waste weir at Big Pool was built in the 1840s
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