Office Public Works Arterial Drainage Channels

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Man made arterial drainage channels to control water flow in rivers. The majority of arterial drainage maintenance works is on channel maintenance with the average channel requiring maintenance every four to six years. While this varies, with some channels requiring maintenance annually and others only requiring maintenance every twenty years, circa 2000 km of channels are maintained annually and nearly all of the 11,500 km of channels will have been maintained at least once over the Programme cycle of six years.

Data Resources (3)

available as shp
available as KML
available as xml+gml

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Theme Environment
Date dataset released 2017-01-31
Date dataset updated 2017-03-16
Dataset conforms to these standards The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment.
Rights notes {"Creative Commons licence conditions apply",,license,,license}
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-10.5, 51.5],[-10.5, 55.5], [-5.5, 55.5], [-5.5, 51.5], [-10.5, 51.5]]]}
Spatial Reference Systems (SRS) WGS 84 (EPSG:4326)
Vertical Extent {"maxVerticalExtent": "1014", "verticalDomainName": "sea level", "minVerticalExtent": "0"}
Provenance information OPW Channels shapefile downloadable from OPW maps server.
Period of time covered (begin) 1945-12-31
Period of time covered (end) 1993-01-31

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