Chew Valley Lake

Chew Valley Lake is a man-made reservoir in Somerset, England, created in the mid-20th century to supply drinking water to the Bristol region. The lake has since become a major site for wildlife, particularly birds, and is managed for both water supply and conservation.

The open water and varied shoreline attract large numbers of wintering wildfowl and waders, and the site is recognised for its ornithological importance. There are walking routes and informal viewpoints around the shore that are commonly used for birdwatching and photography.

The reservoir was constructed by impounding valley streams in the Chew Valley and brought into service in the 1950s to secure water supply for surrounding urban areas. Management combines operational requirements with conservation measures for habitats around the lake.

The lake lies in the Chew Valley in Somerset, southwest England, within driving distance of the Bristol urban area and surrounded by farmland and small villages.

• Purpose and status: Created in the mid-20th century as a reservoir to supply drinking water, it is now an important site for wintering and breeding waterfowl and is designated as a conservation area.
• Birdwatching: The lake covers a large expanse of open water and shoreline, making it one of the region's main birdwatching sites; combine visits with the site's hides and walking routes for best viewing.