| 21. | For erosion control, caged riprap is used.
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| 22. | The dam was constructed of impervious earthen fill fortified on both sides by riprap.
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| 23. | The project involved adding riprap to some reaches.
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| 24. | The beach has been modified in past years by the implementation of groins and riprap.
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| 25. | Coastal bulkheads are most often referred to as seawalls, bulkheading, or riprap revetments.
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| 26. | One way that this is done is by placing riprap or gabions along the bank.
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| 27. | The fort is now protected by riprap.
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| 28. | The failed sections were repaired with grouted riprap, which can still be seen today.
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| 29. | The riprap would have filled the area left between the pier footings and the sheeting.
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| 30. | Riprap instability and streambank instability occur in the lower and middle reaches of the stream.
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