National Underground Asset Register: Road Works

The DfT is supportive of the National Underground Asset Register (NUAR) project. Strikes on cables and other underground assets are costly, lengthen the duration of roadworks and, most importantly, are a safety issue for those undertaking the works. Those excavating the public highway should already be taking all necessary measures to avoid strikes and safely plan their works, but anything that makes this process easier and reduces strikes can only be a benefit.

NUAR is improving the efficiency and safety of the way we install, maintain, operate and repair our buried infrastructure by providing secure access to data from public and private sector asset owners. These will include over 600 gas, water, electric and telecommunications companies and local authorities.

A specific analysis of the potential impacts of the NUAR on roadworks in the Broxbourne constituency has not been carried out. However, an impact assessment was delivered as part of the recent Data (Use and Access) Act 2025 which considered the impact of NUAR across England, Wales, and Northern Ireland. This assessment estimated the economic benefits of NUAR to be over £400m per year. This consists of benefits in efficiencies, reduced asset strikes and reduced delays to the public and businesses.