Stock Photo: England, Norfolk, Denver. Part of the Denver Sluice on the River Great Ouse, designed to divert the tidal water into the man-made Hundred Foot River and prevent flooding.

Stock Photo: 4282-4434 England, Norfolk, Denver. Part of the Denver Sluice on the River Great Ouse, designed to divert the tidal water into the man-made Hundred Foot River and prevent flooding.