Windle Brook

The River Bourne is the name given to a Thames tributary in northwest Surrey, England which has a longer tributary, the Windle Brook, that rises nears Bagshot Park in the south of Swinley Forest, Berkshire, merging with it while flowing through villages north of Woking; downstream the Bourne joins the Thames near Weybridge.

The River Bourne or The Bourne rises southwest of Bisley in Bisley Common where it joins the longer Trulley Brook which drains Colony Bog and the middle of the Pirbright Ranges, flows between West End and Bisley, skirts the south of Chobham, makes a meander into rural north Woking and joins the much longer Mill Bourne to the east of Chobham before flowing between Woodham and Addlestone, then New Haw and Addlestone. Finally passing through some of the town, it enters St George's College, Addlestone (formerly Woburn Park) where the River Bourne joins with the River Bourne (Chertsey branch). The River Bourne then by a manmade channel turns east instead of running the final 100m into the Upper Chertsey Reach; joining the River Thames below the southern weir of Shepperton Lock and its many islands, which due to the barraging of the Thames provides (as was possible before the Thames weirs were built) a greater fall.

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