Hedsor Water

Hedsor Water is a stretch of the River Thames near Cookham, Berkshire which runs to the north of Sashes Island. Hedsor Water was once the main navigation of the Thames but was by-passed by the construction of Cookham Lock in 1830. Navigation is only possible for the first 100 metres from the downstream end, where a few temporary moorings are available, except for smaller boats.

Cookham Lock opened in 1830, but no weir was built at this time. In 1832 Lord Boston of Hedsor House claimed compensation for loss of towpath rights along Hedsor Water which he was granted. In 1837 a weir was found necessary and built across Hedsor Water, leading to further litigation from Lord Boston for loss of trade to the wharf he owned there.