| 11. | The south wing wall is 324 feet long and the north wing 405 feet.
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| 12. | Soon after, money ran out and only the west wing wall was actually built.
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| 13. | The culvert is arched with picked stone wing walls and stone deck and abutments.
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| 14. | The bridge uses dressed-stone for the arch rings, and has coursed-rubble spandrels and wing walls.
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| 15. | The western portal is built from stone with buttresses and wing walls to each side.
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| 16. | Once the stone arch was built, the spandrel walls and wing walls could be added.
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| 17. | The galleries were built on three levels and spread on wing walls of the castle.
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| 18. | South wing walls are clad in buff-colored brick.
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| 19. | The spandrel and wing walls are built in alternate courses of ashlar masonry and rock-faced blocks.
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| 20. | The spandrel and wing walls are built in alternate courses of ashlar masonry, and rock-faced blocks.
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