Board’s Area and Maps

Watershed Catchment Area draining to and including the District (hectares) 45,602
Area of the Drainage District (hectares) Dynamic Map 19,052
Area of Agricultural Land, including designated wildlife sites (hectares) 16,139
Area of Residential/Industrial and other Property (hectares) 2,913
Designated Wildlife Sites (hectares) 4,585

Board’s Infrastructure

Number of Pumping Stations 37
Number of First and Second Line Sluices 0
Number of Other Water Level Control Structures 62
Length of Watercourse (kilometres) * 340
High Priority Watercourses, as defined by the Board (kilometres) * 98
Raised Embankments (kilometres) 6

Environment Agency Infrastructure

Main River (tidal and fluvial) (kilometres) 137
River Raised Embankments (kilometres) 137
Sea and Tidal Defences (kilometres) 18


Asset Prioritisation Criteria
* Adoption and Abandonment Criteria
Cautionary Note

Last Updated: 31 December 2022

Contact details

During office hours
(between 8.30 am and 4.30 pm)
Tel: +44(0)1553 819600

Central Office: Pierpoint House, 28 Horsley’s Fields
King's Lynn, Norfolk, PE30 5DD

Out of hours

Please contact the Duty Officer on +44(0)7841 571251 or send an email to Otherwise if you know who you need to contact in an emergency, please refer to the Member Board’s ‘Contact us’ webpage on this site for their out of hours contact details.

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