Bow Interchange is a busy grade-separated road junction on the East Cross Route (part of the A12 road) between Bow and Stratford in east London, England. It is a triple-level junction where the A12, Bow Road (the A11 road), and Stratford High Street (the A118 road) meet. The River Lea runs underneath the junction.The East Cross Route is a major road in East London which runs north to the North Circular Road and south to the Blackwall Tunnel.