Cerna (Danube)
| Cerna | |
|---|---|
.JPG) | |
  | |
 | |
| Location | |
| Country | Romania |
| Counties | Gorj, Caraș-Severin, Mehedinți |
| Towns | Băile Herculane, Orșova |
| Physical characteristics | |
| Source | Godeanu Mountains |
| Mouth | Danube |
• location | Orșova |
• coordinates | 44°44′22″N 22°24′44″E / 44.73944°N 22.41222°E |
| Length | 79 km (49 mi) |
| Basin size | 1,380 km2 (530 sq mi) |
| Basin features | |
| Progression | Danube→ Black Sea |
| Tributaries | |
| • right | Belareca |
The Cerna (Hungarian: Cserna) is a river in Romania, a left tributary of the river Danube.[1][2] The Cerna has its source on the south-east side of the Godeanu Mountains and flows into the Danube near the town Orșova.[3] The upper reach of the river is sometimes called Cernișoara. With a length of 79 km (49 mi) and its basin of 1,380 km2 (530 sq mi),[2] it carves an erosive tectonic valley with numerous gorges, quite deep sometimes. There is a man-made lake on it (Tierna), just before it crosses the Băile Herculane spa, to perpetuate the old toponimic od Dierna.[clarification needed] The upper course of the Cerna is part of the Domogled-Valea Cernei National Park. The Cerna flows through the villages and towns Cerna-Sat, Țațu, Băile Herculane, Pecinișca, Bârza, Topleț, Coramnic and Orșova.
The Valea lui Iovan-Cerna dam is located on the Cerna River at its intersection with the Valea lui Iovan River. The Cerna reservoir has a maximum volume of 124 million m3 and an area of 292 ha.[4]
The Herculane Dam is the second important barrier obstructing the waters of the Cerna River. It is located 7 km upstream from Băile Herculane, has a volume of 15.8 million m3, a retention level NNR of 235 m above sea level, and an area of 75.2 ha.
Tributaries
The following rivers are tributaries of the river Cerna (from source to mouth):[2]
- Left: Arsaca, Jelerău, Valea Mare
- Right: Șturu, Măneasa, Valea Cărbunelui, Valea lui Iovan, Balmez, Naiba, Olanul, Craiova, Iauna, Topenia, Iuta, Prisăcina, Belareca, Jardașița Mare, Sacherștița
References
- ^ "Planul național de management. Sinteza planurilor de management la nivel de bazine/spații hidrografice, anexa 7.1" (PDF, 5.1 MB). Administrația Națională Apele Române. 2010. p. 483.
- ^ a b c Atlasul cadastrului apelor din România. Partea 1 (in Romanian). Bucharest: Ministerul Mediului. 1992. pp. 230–232. OCLC 895459847. River code: VI.2
- ^ Cerna / Cernisoara (jud. Mehedinti), e-calauza.ro
- ^ "Lacul Valea lui Iovan din județul Gorj - Prin România" (in Romanian). 2024-01-15. Retrieved 2026-03-02.
