A transcription of part of the plan of the Bowker Drain used by Briggs and Duxbury when they refurbished much of the drain for Rolls Royce who did the work because they used the water from the drain for foul water services at Bankfield. It was given to me by Joe Moran whom I believe worked for either RR or B&D at the time.
This section shows the 'timbers' under the canal which carry the water from Bob Preston meadow to a concrete manhole on the opposite bank.....