British Transport Commission: Docks and Inland Waterways Executive
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South Wales Docks (East): Civil Engineer's Office
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Administrative, engineering and maintenance records
BW175/7/1/2
"Reservoirs (Safety Provisions) Act, 1930. Prescribed form of record relating to a Reservoir [Pen-y-Fan]"
Details include: water levels; average rainfall; structural character of dam or walls.
1952-1957
BW175/7/1/2
These records are available immediately for research
1 volume