|Location||Olton, West Midlands|
|Primary inflows||Folly Brook|
|Primary outflows||via culvert to Grand Union Canal|
|Managing agency||Canal and River Trust|
|Max. length||695 metres (2,280 ft)|
|Max. width||200 metres (660 ft)|
|Surface area||126,000 square metres (31 acres)|
|Average depth||2.5 metres (8.2 ft)|
|Water volume||320,000m³ (70 million gallons)|
|Shore length1||1.70 kilometres (1.06 mi)|
1 Shore length is not a well-defined measure.
The reservoir, constructed in 1799 to supply the Grand Union Canal, was formed from marshland fed by Folly Brook. It was designed to hold 150 locks full of water, but this was not achieved until it was extended in 1834. It is the largest of the few areas of open water in Solihull and supports a large number of waterfowl. The lake and its surroundings are privately owned by Canal and River Trust and are leased to Olton Mere Sailing Club.
See also 
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