 Here, now slow-flowing, as a small river it joins with another River Bourne, the River Bourne (Addlestone branch).Combined these briefly create a back-gardens feature with a deep, vertical metal-lined character.This joins the River Thames within 200  metres below its southernmost weir, in one of its channels bypassing Shepperton Lock beside Hamm Court, Addlestone close to the border with Weybridge which is marked by the River Wey that joins a further downstream of this.