UK Road Closed: National Highways

Motorists are advised to plan ahead as a section of the strategic road network is set to be closed overnight in Hertfordshire. The road in question is National Highways' managed route, with the closure affecting the stretch located near Watford. The precise road name has not been disclosed by National Highways, but traffic management information for the area shows the disruption will be at National Highways Closure — 516598.

The highway authority has announced that the closure will take place from tonight (14 August 2026) at 22:00 hours until tomorrow morning (15 August 2026) at 04:30. Motorists are being warned to expect significant delays if they attempt to travel through the area during this period. As part of National Highways' ongoing maintenance work on the strategic road network, the road will be closed to allow essential repairs to be carried out.

Motorists are advised to check for alternative routes before setting out on their journeys. The National Highways website and mobile app provide up-to-date traffic information and journey planning tools. Drivers can also use third-party traffic apps, such as Waze or Google Maps, to find the most efficient routes around the closure. It's essential to note that the diversion routes may be subject to change, so it's crucial to stay informed about the latest traffic updates.

While the closure is in place, drivers can expect significant queues and delays. Motorists are urged to plan their journeys in advance and consider alternative modes of transport, if possible. National Highways is working hard to complete the repairs as quickly as possible, but the safety of road users is the top priority.

For those planning to drive through the area, it's essential to check the latest traffic information before setting out. Motorists can visit the National Highways website or mobile app for the most up-to-date information on the closure and diversion routes. Additionally, drivers can follow National Highways on social media to stay informed about the latest traffic updates.

For more information on the road closure and to plan your journey, please visit Road Closures UK, which provides the latest traffic information and updates from across the UK. Motorists can also sign up for National Highways' free traffic alerts service to receive email updates about traffic disruptions and roadworks on the strategic road network.