Thorpe Interchange

Thorpe Interchange connects the M25 and M3 motorways through a series of curved ramps that allow vehicles to maintain continuous movement without stopping.

The interchange development started in July 1978 and reached completion with its official opening ceremony on October 9, 1980.

The interchange design reflects British transportation engineering principles, incorporating safety measures while maintaining efficient traffic flow between major routes.

Five lanes carry traffic north of the interchange on the M25, while four lanes operate on the southern section toward Chertsey.

The interchange features a specialized turbine configuration that enables vehicles to merge seamlessly between two major motorways without traffic signals.

Location: Runnymede

Official opening: October 9, 1980

Part of: M25 motorway, M3 motorway

GPS coordinates: 51.40076,-0.53746

Latest update: March 8, 2025 07:17