What is NUAR?

NUAR is a government digital service, operated by Ordnance Survey, that provides instant access to a secure and standardised map of the underground pipes and cables in England, Wales, and Northern Ireland. It is improving the efficiency and safety of the way we install, maintain, operate, and repair our buried infrastructure. It achieves this through: 

  • Instant access to data reducing the number of organisations to be contacted and speeding up the average six days to get information.
  • Providing a standardised view of underground asset data, which simplifies the previously complex process of aligning varied formats and scales.  

There are around 4 million kms of underground pipes and cables in the UK, and 60,000 accidental strikes on these every year - costing the UK economy £2.4 billion per annum and putting workers’ safety and lives at risk. NUAR is envisaged to deliver over £400 million per year of economic growth through increased efficiency, reduced asset strikes and reduced disruptions for the public and businesses.

NUAR will provide secure access to data from over 600 public and private sector asset owners. Data is currently available from over 360 asset owners, including most of the major energy and water providers, several major telecommunications companies, transport organisations, and local authorities. Currently over 3.2 million kms of pipes and cables are mapped, which covers 80% of the known underground assets

Introducing NUAR

Watch this video to find out how the National Underground Asset Register is improving lives.

Watch time: 3 minutes

Watch in YouTube

Who NUAR is for

The NUAR service is currently accessible to:

  • Telecommunication, Energy, Pipeline, Water, Transport, Local Authority and Highways Authority asset owners who operate underground infrastructure in England, Wales, or Northern Ireland. 
  • The authorised contractors working directly on behalf of these asset owners to install, maintain, operate, and repair buried infrastructure.
Learn how to access NUAR

Benefits of NUAR to users include

  • Supporting safe dig process: With 60,000 accidental strikes every year, NUAR provides excavators with access to more data improving their safety.
  • Integrated map view: A centralised secure platform sharing a standardised view of underground asset data, simplifying the previously complex process of aligning varied formats and scales.
  • Operational efficiency and savings: Instant access to data, reducing the number of organisations to be contacted and speeding up the average six days to get information.
  • Meets service standards and regulatory compliance with the nationally recognised register.

NUAR in Numbers

Over 360
asset owners' data published
Over 3.2 million kms
of pipes and cables published
80%
of known underground assets mapped

Some of the companies using NUAR

OpenreachGigaclear logoVirgin Media O2 logoNorthumbrian Water GroupThames Water logoNI Water logoNorthern Ireland Electricity Networks logoCadent Your Gas Network600x300px TRANSPORT FOR WALES LOGODCC logoLincolnshire County Council logoCoventry City Council LogoEsh Construction logoAlpha Construction Ltd logo

"NUAR is a game changing powerful extra layer for our projects, that augments what we already use. Having instant access to a standardised view of underground utilities in one map improves safety, planning, and decision-making before we get anywhere near site."

John Lodge, Senior Project Manager, Distribution & Utilities, Balfour Beatty

"NUAR provides a central place for all asset owners information. This allows processes to be streamlined and the timeframe for gathering information to be significantly expediated, giving time and efficiency savings of approximately 75% when the system is fully in use. "

Ashley Behan, Traffic Manager, Lincolnshire County Council