| 11. | A two-mile section from southern Cranberry Lake to Inlet is unnavigable.
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| 12. | It has ten ( 10 ) small unnavigable rivers.
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| 13. | By 1948 the canal was completely unnavigable but it did remain in water.
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| 14. | It is an unnavigable right tributary of the Neckar.
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| 15. | Dams create navigable stretches of river where they may have been unnavigable before.
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| 16. | When the river became unnavigable the buildings usefulness waned and was eventually abandoned.
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| 17. | Washed-out roads and unnavigable waters have halted or hindered food relief shipments.
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| 18. | Washed-out roads and unnavigable waterways have halted or hindered food relief shipments.
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| 19. | Generally unnavigable, the rivers obstruct rather than encourage movement within the alpine region.
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| 20. | Two attempts by Mike Cumberlege to make the Corinth Canal unnavigable ended in failure.
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