| Alb | |
|---|---|
 The Alb in Ettlingen | |
  Location of mouth | |
| Location | |
| Country | Germany |
| Physical characteristics | |
| Source | |
| • location | South ofBad Herrenalb |
| • coordinates | 48°45′0″N8°25′22″E / 48.75000°N 8.42278°E /48.75000; 8.42278 |
| • elevation | 751 m (2,464 ft) |
| Mouth | |
• location | into theUpper Rhine atEggenstein-Leopoldshafen |
• coordinates | 49°6′28″N8°21′48″E / 49.10778°N 8.36333°E /49.10778; 8.36333 |
• elevation | 101 m (331 ft) |
| Length | 51.5 km (32 mi)[1] |
| Basin size | 448 km2 (173 sq mi)[1] |
| Discharge | |
| • average | 2.5 m3/s (88 cu ft/s) |
| Basin features | |
| Progression | Rhine→North Sea |
| Tributaries | |
| • left | Moosalb |
| • right | Maisenbach |
TheAlb (German pronunciation:[alp]ⓘ) is a river in theNorthern Black Forest in Germany. It is a tributary of theRhine, and flows through the cities ofKarlsruhe,Ettlingen andBad Herrenalb.
The river Alb begins about 7 kilometres (4 mi) fromBad Herrenalb. From its source it flows north through Bad Herrenalb,Frauenalb andMarxzell. There it takes the waters of the Maisenbach creek as a right tributary. The river Moosalb is a left tributary at Fischweier on the border between the municipalities of Marxzell andKarlsbad. NearBusenbach the Alb turns to the northwest.
Out ofEttlingen, the Alb leaves theBlack Forest and reaches theUpper Rhine Plain. After flowing through Ettlingen it turns north again.
The river passes the Karlsruhe city district of Rüppurr, flows under the Federal Road no. 10 and then follows this highway to the northwest. Afterwards the Alb flows through the so-called Günther Klotz Facilities in the southern part of Karlsruhe – partially being the district border between Bulach and Beiertheim – and thereby forms the core of a popular local recreation area. The Karlsruhe district of Daxlanden is then passed through in a great loop and the river reaches the Appenmühlebarrage where the Karlsruhe city works operate ahydroelectric power station since the year 2000. After that the Alb flows around the ports at the riverRhine inMühlburg. In Knielingen, the river turns north-northeast, approximately parallel to the Rhine, and flows through the MiROoil refinery in a canal.
Eventually the Alb reaches thefloodplains of the Rhine atEggenstein-Leopoldshafen and discharges into the Rhine. Shortly before emptying into the Rhine, it is joined to the right side by the relief canal of the riverPfinz.
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