British Waterways Board
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Chief Engineer's Department, Watford
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BWB engineering drawings
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BWB engineering drawings nos 769-1004
BW167/6/7/1/113
"Replacement of Ramsden's Swing Bridge Aire & Calder Navigation..."
Plans sections and elevations shwoing layout, groundworks and piers, staircase, deck, sheet piling and coping
May 1967-October 1968
BW167/6/7/1/113
These records are available immediately for research
6 sheets