| 41. | In a bombardment on 22 September 1917, the lock gates were hit causing the basin to drain at low water.
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| 42. | The staircase underwent extensive restorative maintenance in 2004, and again in 2006 when the lock gates and paddles were replaced.
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| 43. | The park visitor center has the bottom portions of two wooden canal lock gates excavated in the 1980s from the canal.
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| 44. | Next he introduced lock gates built of the same material, and also used it for replacing some of the bridge beams.
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| 45. | The entrance lock was split by lock gates into sections of; the lock had of water depth at ordinary spring tides.
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| 46. | Most lock gates are not watertight, therefore some water leaks from the higher levels of the canal to those lower down.
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| 47. | The new lock gates were constructed by the time of the 1898 Act which authorised the construction of a swing bridge.
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| 48. | The dockside tramways covered both sides of the dock and crossed the 1881 lock gates at the south end of the dock.
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| 49. | Any passenger who wants to help open a lock gate can get off and push the big lever that activates the mechanism.
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| 50. | The tunnel entrance at the Penarth end was located near the lock gates between the outer basin and the number one dock.
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