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
BW167/6/7/1/47
"Renewal of culvert 500 yds west of Ballot Box Bridge"
Plans and sections showing new works and coffer dam with records of dippings before dredging in preparation for coffer dam
November 1964
BW167/6/7/1/47
These records are available immediately for research
2 sheets