OS MasterMap Water Network

OS MasterMap Water Network offers the most accurate view of all watercourses across the whole of Great Britain.

Created in collaboration with the Environment Agency and Scottish Environmental Protection Agency, to a consistent specification and update schedule – so it can help support flood risk management decisions and the sharing of information between national and local organisations.

  •  Model watercourse scenarios in 2D and 3D with accurate, clear and detailed information about river flow, gradient and river widths, along with its precisely mapped course
  • Very detailed mapping of a wide range of underground network features from aqueducts to tunnels with full flow direction and for the first time the network of underground watercourses – inferred from the entry and exit points

Usage

  • Supports your response to flood risk, flood mitigation, water quality and environmental reporting
  • Assists your compliance with the Flood Risk Management (Scotland) Act 2009 and the Flood and Water Management (England & Wales) Act 2010
  • Plan effective flood risk mitigation schemes
  • Respond efficiently to floods
  • Analyse the environmental impact of roads or housing development on local watercourses
  • Trace sources of contamination quickly to minimise the impact of incidents that arise
  • Manage and protect waterside assets effectively
  • Create detailed flood models that help you to manage your insurance underwriting exposure effectively

Specifications

  • Scale: 1:1,250 to 1:10,000
  • Coverage: Great Britain
  • Update Frequency: Quarterly - April, July, October and January
  • Formats: Vector (GML, ESRI Shape, MicroStation® DGN or AutoCAD® DWG and DXF) 
  • Supply: Email Download, FTP, DVD, Data Streaming (WMS, WMTS, WFS)
  • Licensing Options: Annual, Internal Business Use

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