Tiefwerder Wiesen

Landscape protection area Tiefwerder-Wiesen
Tiefwerder meadows
Boardwalk through the Tiefwerder Wiesen
Landscape protection area Tiefwerder-Wiesen
LocationBerliner Havel-/Spreetalniederung
Coordinates52°30′55″N 13°12′32″E / 52.5152229°N 13.2088575°E / 52.5152229; 13.2088575
Primary inflowsHavel
Basin countriesGermany
Max. length1,600 m (5,200 ft)
Max. width900 m (3,000 ft)
Surface area66.7 ha (165 acres)
Max. depth1 m (3 ft 3 in)
Surface elevation300 m (980 ft)
SettlementsBerlin-Spandau, Berlin-Charlottenburg

The Tiefwerder Wiesen (lit. German: Tiefwerder meadows) in Berlin is the remnant of the former floodplain landscape in the Havel/Spreetal lowlands. It is situated in the Tiefwerder area and the lowland region of the Pichelswerder River peninsula in the Wilhelmstadt district of Spandau. These wet meadows contain historical Havel River arms and have been protected under Landschaftsschutzgebiet (LSG) (landscape conservation area) since 1960, covering an area of 66.7 hectares. Within the LSG lies the Faule See (Lazy Lake), which emerged from an old arm of the Havel.

The natural floodplain is the last pike spawning area in Berlin. However, due to the lowering of the Havel water level since 1990, the accessibility of the meadows for the pike has significantly deteriorated. Moreover, the German Unity 17 transport project, if implemented, would cause a further drop in the water level, posing an additional threat to the pike's habitat. Endangered species such as the bladder sedge grow in the wet meadows dominated by sedge in Berlin. The LSG serves as an important inner-city link in the Havel biotope network and functions as a flight path for bats and a migration route for the native beaver. Since 2007, Berlin has been considering extending its protected status to a nature reserve.