The A1 is closed at various sections due to scheduled maintenance and roadworks. Specifically, there were closures for maintenance between Barneveld and the Hoevelaken junction in the Netherlands on the night of September 12 to 13, 2025, for tasks such as mowing, joint maintenance, cleaning drainage, and litter removal. Additionally, major maintenance work has been ongoing between Kootwijk and Apeldoorn, with closures to replace road foundations, asphalt layers, and viaduct maintenance activities planned throughout September 2025. In the UK, particularly in West Yorkshire, part of the A1(M) was closed due to a serious multi-vehicle collision near Boston Spa and Wetherby on September 19, 2025, causing a full road closure for investigation and emergency medical care. Another closure, related to essential repairs and upgrades, took place at the Wentbridge Viaduct and Wentedge Road Bridge, expected to continue through late 2025. Therefore, the closing reasons range from planned maintenance and construction projects to emergency closures due to traffic accidents depending on the location and specific time on the A1 road network.
