Aller (Germany)
The Aller (pronounced [ˈalɐ] ⓘ) is a 215-kilometre-long (134 mi) river in the states of Saxony-Anhalt and Lower Saxony in Germany. It is a right-hand, and hence eastern, tributary of the Weser and is also its largest tributary. Its last 117 kilometres (73 mi) form the Lower Aller federal waterway (Bundeswasserstraße). The Aller was extensively straightened, widened and, in places, dyked, during the 1960s to provide flood control of the river. In a 20-kilometre-long (12 mi) section near Gifhorn, the river meanders in its natural river bed.
| Aller | |
|---|---|
The canalised and poplar-lined Aller in the Drömling near Wolfsburg-Vorsfelde | |
Location of mouth | |
| Location | |
| Country | Germany |
| States | Saxony-Anhalt and Lower Saxony |
| Reference no. | DE: 48 |
| Physical characteristics | |
| Source | |
| • location | in Eggenstedt near Seehausen in the Magdeburg Börde |
| • coordinates | 52°06′09″N 11°14′01″E |
| • elevation | 130 m above sea level (NN) |
| Mouth | |
• location | Weser near Verden |
• coordinates | 52°56′45″N 9°11′08″E |
• elevation | 10 m above sea level (NN) |
| Length | 214.8 km (133.5 mi) |
| Basin size | 15,721 km2 (6,070 sq mi) |
| Discharge | |
| • average | 118 m3/s (4,200 cu ft/s) |
| Basin features | |
| Progression | Weser→ North Sea |
| Landmarks |
|
| Tributaries | |
| • left | Oker, Fuhse, Wietze, Leine, Alpe, Wölpe |
| • right | Kleine Aller, Ise, Lachte, Örtze, Meiße, Böhme, Lehrde, Gohbach |
| Navigable | 117 km (73 mi); from Celle Class II, from Verden Class III |
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