Past Shallow Coal Mine Workings
Past shallow coal mine workings are derived from the Coal Authority’s records of underground coal mine workings. This dataset has been created by extracting all those underground workings, or parts thereof, whose depth is 30 metres or less from the surface. Shallow workings do not have sufficient overlying strata therefore any movement has the potential to reach the surface and cause damage; approx 50% of the accepted surface hazards are related to shallow workings, both recorded and unrecorded.
dataset
https://map.bgs.ac.uk/arcgis/services/CoalAuthority/coalauthority_specific_risk/MapServer/WMSServer?
protocol: OGC:WMS-1.3.0-http-get-map
name: Past.Shallow.Coal.Mine.Workings
description: Past Shallow Coal Mine Workings
function: information
f5279019bdf9824d76e3519695480558e91957ca_resource
eng
https://www.gov.uk/government/publications/coal-mining-data-past-shallow-coal-mine-workings
location
coal
mining
publication
2010-01-13
shallow workings
underground
mining report
ground stability
-9.141715
2.475924
60.010291
49.766186
2014-08-14
2014-08-14
publication
2014-09-26T00:00:04
asNeeded
Since 1872, there has been a law that requires all coalmine operators to deposit working plans of the mine with the Government following the cessation of operations. Prior to this date the plans were often destroyed or kept in private ownership due to competition between the mine operators. The Coal Authority has over 120,000 mine plans and it is these underground working that were captured into the GIS as polygons. Shallow coal mining is defined as lying at a depth of up to 10 x the thickness of coal seam extraction down to a maximum depth of 30 metres (30 metres is the height of a 10 storey building). This is definition is typically extended to 50 metres in one or two areas where the coal is particularly thick; however this dataset currently only refers to 30 metre depths. Underground workings deeper than 30m do not readily constitute a threat to surface stability due to the ability of the overlying strata to dissipate any movement from within the workings before they reach the surface. However, shallow workings do not have sufficient overlying strata therefore any movement has the potential to reach the surface and cause damage; approx 50% of the accepted surface hazards are related to shallow workings, both recorded and unrecorded. The National Coal Mining Database, which is based on the records held at the Coal Authority offices in Mansfield, Nottinghamshire, is updated on a regular basis. This dataset has been extracted from this dynamic database on the date stated and therefore represents a snapshot in time.
publication
2010-12-08
false
Customer Service Team
The Coal Authority
200 Lichfield Lane
Mansfield
NG18 4RG
UK
+44 (0)845 7626848
+44 (0)1623 637338
https://www.gov.uk/government/organisations/the-coal-authority
pointOfContact
Customer Service Team
The Coal Authority
200 Lichfield Lane
Mansfield
NG18 4RG
UK
+44 (0)845 7626848
+44 (0)1623 637338
https://www.gov.uk/government/organisations/the-coal-authority
pointOfContact
2021-08-26T15:16:44