|Looking towards the New Garden / Quappenhorn|
|Geographical location||Central Europe , Germany , Brandenburg , Berlin|
|Tributaries||Havel (Kladower sea route)|
|Drain||Havel , Sacrow-Paretz Canal|
|Places on the shore||Berlin , Potsdam|
|Altitude above sea level|
|length||4.0 km (Krughorn - Großes Horn)|
|width||Max. 1.3 km|
|Maximum depth||approx. 4 m|
The Jungfernsee is a glacial basin and channel lake . Today the Havel flows through it and therefore belongs to the Berlin-Potsdamer Havel waters. It stretches over 3.52 kilometers from the southeast (Glienicker Bridge) to the northwest (Großes Horn) and is thus perpendicular to the natural flow direction of the Havel in the Havel chain of lakes. The largest part of its water surface is Potsdam city area. Only a small triangle in front of its southeast bank belongs to Berlin .
The name "Jungfernsee" refers to the Spandau Benedictine convent , which owned the lake.
Integration into the Havel
At three ends, the Jungfernsee passes through the straits into other parts of the Havel: The north-eastern bottleneck represents the inflow from the Kladower lake stretch; it is bounded to the north by the Meedehorn and south by the Berlin-Wannsee steep bank with the Krughorn . The southern bottleneck is spanned by the Glienicke Bridge, where the Potsdam Havel begins. The water from the Havel flows through this narrow area into the Glienicker Lake and from there through the Babelsberger Narrows into the Tiefen See of the Potsdam Havel. At the northwest end of the Jungfernsee, the western tip of the nature reserve Sacrower See and Königswald and the opposite Great Horn (formerly to Nedlitz , today counted as Neu Fahrland ) limit the transition to a strongly winding water surface that extends 2.45 kilometers to the north and in the front part Lehnitzsee is called Krampnitzsee in the rear part. The Sacrow-Paretz Canal also leaves the Jungfernsee at the Großer Horn, which shortens the Potsdam Havel arch and has no locks, i.e. it represents an artificial second run of the Havellau. The canal crosses the White Lake and touches the Fahrlander See . To the northwest of the Großer Horn there is a natural connection from the Lehnitzsee to the Weißen See as part of the Nedlitzer Alte Fahrt, which begins at the Großer Horn and was created by the breakthrough for the Sacrow-Paretz Canal.
The slight narrowing between the Riesterhorn on the north bank and the Quappenhorn on the south bank divides the lake into a not quite circular southeastern part and a long, narrow northwestern part. The greatest width in the southeastern part is 1.45 kilometers, in the northwestern part the width is a maximum of 490 meters. The narrowest point is 180 meters wide, the width between Quappenhorn and Riesterhorn is 270 meters. The Königswald, a former Prussian hunting area, borders almost completely on the reed north bank. There are only a few places where there are bathing areas that can be reached on foot or by bike. On the Riesterhorn, the shoreline that runs northwest-southeast up to this point bends first to the northeast and then to the east and is thus involved in the expansion. The southern tip of the Sacrower See is only 390 meters away from here. In the northeast of the Jungfernsee is the Sacrower Heilandskirche directly on the north bank . The steep bank opposite, which rises 20 meters above the water level, is also wooded. It is taken by the Glienicker Park in the EU bird sanctuary of West Düppeler Forest and extends in a south-westerly direction to the Glienicker Bridge , which spans the outflow of the lake. Across this bridge, the Potsdam ( Berlin suburb ) with Berlin-Wannsee combines leading Bundesstraße 1 .
The state border between Brandenburg and Berlin runs through the south-eastern part of the lake, parallel to the Berlin bank (before 1990 the inner-German border between the GDR and West Berlin ). The lake was not accessible from the Potsdam bank. The bank that begins here is partly built up and, after the confluence of the Hasengraben , which comes from the Holy See , represents the northeast border of the New Garden . It runs over the Quappenhorn headland in a north-westerly direction to Nedlitz. The isthmus between Jungfernsee and Heiligem See is only 190 meters wide. The dairy in the New Garden is on this bank and Cecilienhof Palace is 160 meters from the lake . A few meters east of the isthmus, Kaiser Wilhelm II had a settlement built from 1890 based on the model of Norwegian villages. The Kongsnæs sailor station was destroyed when the wall was built , the other houses have been preserved.
- Directory E, Ser. No. 60 of the Chronicle ( Memento of the original from July 22, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Federal Waterways and Shipping Administration
- Joachim Pohl: Art. (Berlin-) Spandau. Benedictine women. In: Klaus Neitmann (ed.): Brandenburg monastery book. Handbook of the monasteries, pens and commander by the mid-16th century. Volume II., Be.bra Wissenschaft verlag, Berlin-Brandenburg 2007, ISBN 978-3-937233-26-0 , pp. 1182–1191, here p. 1183.