Cottbuser Ostsee
The Cottbuser Ostsee (Cottbus Eastern Lake; Lower Sorbian: Chóśebuski pódzajtšny jazor) is an artificial lake under development on the grounds of the former open-pit lignite mine de:Tagebau Cottbus Nord near Cottbus, Brandenburg, Germany.
| Cottbus Eastern Lake | |
|---|---|
| Location | northeast of Cottbus, Brandenburg, Germany |
| Coordinates | 51°47′10″N 14°25′01″E / 51.786°N 14.417°E |
| Type | flooded former open pit lignite mine |
| Part of | Lusatian Lake District |
| Primary inflows | Hammergraben (Spree) |
| Built | December 23, 2015 end of mining April 12, 2019 start of flooding |
| First flooded | April 12, 2019 begin of flooding; 23 December 2024 target water level reached; December 31, 2030 end of flooding (planned) |
| Surface area | 1,900 hectares (4,700 acres) (planned) |
| Average depth | 2.5 to 3 metres (8 ft 2 in to 9 ft 10 in) (planned) |
| Max. depth | 30 metres (98 ft) (planned) |
| Water volume | 150,000,000 cubic metres (5.3×109 cu ft) (planned) |
| Surface elevation | 61.8 metres (203 ft) above Normalhöhennull (planned) |
