Any drainage experts on here

Location
Ceredigion
Just found one now , lot easier to find after heavy rain
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anzani

Member
1 Hatching signifies backfill over those pipes.
2 Numbers in the body of the map adjacent to a black line signify the length of that particular pipe run.
3 Numbers at the outfall into the ditch signify space apart of outfalls.

Looks to be denoted in imperial - in feet.

Age of maps and schemes? Is that written on the maps somewhere with the drainage contractor name - and if grant aided MAFF number / signature? Was the scheme completed - presume so, or a draft?
It appears on top left hand corner of 1st plan: Edition 1932
Was the survey by' Hunts '?
 

Exfarmer

Member
Location
Bury St Edmunds
Pop along to your local public library and ask the librarian to recommend some text books on land drainage published in the 1950s -1970s era. That's what they are trained to do and if they don't have them in house they should be able to get a copy through Inter-Library Loan. (A copy of every book published has to be deposited in your National library by law). All it costs you is the postage. A fantastic resource we will lose if we don't use it. Those books should have a description of conventions and symbols used on maps.

I wonder if maps deposited with the authorities are lurking in some store or other? If grant money was paid out, surely there should be a record?
Grant aided schemes in England and Wales had to have a special map drawn on Linen with a special pen which would last forever but not damage the linen. This cost a lot of money.
This was deposited with the ministry and the idea was these would be around for future farmers to reference as it was well known that many drains from up to 200 years earlier were still running , if only the locations were known.
Sadly some idiot in the ministry decided after ten years to dispose of these old records. Hundreds of thousands of pounds worth of plans went up in smoke!
 

DanniAgro

Member
Pop along to your local public library and ask the librarian to recommend some text books on land drainage published in the 1950s -1970s era. That's what they are trained to do and if they don't have them in house they should be able to get a copy through Inter-Library Loan. (A copy of every book published has to be deposited in your National library by law). All it costs you is the postage. A fantastic resource we will lose if we don't use it. Those books should have a description of conventions and symbols used on maps.

I wonder if maps deposited with the authorities are lurking in some store or other? If grant money was paid out, surely there should be a record?
Unlikely - when my local agricultural division closed in the 90s, they sent the drainage scheme maps they held back to the farmers who had originally done the schemes. Probably most others did the same.
 
We have plenty of old maps that were all in imperial measurements.
Most of the pipes were 3" clay and some were 4" which would take up to 4 x 3" pipes joined in.
They were always a Chain apart or 22 yards, sometimes in better draining land they would be put 2 chains apart but put in deeper.
 
The dashed lines on the second plan that extend on from the solid lines are most likely tie lines that extend the line of the drain to the far side of the field and the measurements along that boundary mean that the line of the drain can be set out with reasonable accuracy.
Without the tie lines the drains could be pointing anywhere and there wouldn’t be anything on the plan to indicate direction
cw
 

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