Constructed in the early years of this century, the reservoir is filled in the winter from water abstracted from the Black Bourn. A large, square and deep reservoir with steeply sloping sides, it doesn't appear to be attractive to birds. However, such large bodies of open water are scarce in this part of Suffolk, so the reservoir does attract birds, and is a popular roosting site for geese in the autumn and winter. There is no public access.