The Dartford Crossing is a major road crossing in the southeast of England, connecting the counties of Kent and Essex. It consists of two tunnels and a bridge, known as the Queen Elizabeth II Bridge, which spans the River Thames. Opened in 1991, it plays a crucial role in facilitating traffic between London and the surrounding areas. The crossing is part of the A282 motorway and is a toll road, meaning drivers must pay a fee to use it. The toll helps maintain the infrastructure and manage traffic flow, especially during peak hours. The Dartford Crossing is vital for both local and long-distance travel.