Ombla

The mouth of the Ombla in the Adriatic Sea

Template: Infobox River / Obsolete

The Ombla (also Umbla or Dubrovačka Rijeka; flow of Dubrovnik) is a karst river in the south of Dalmatia in Croatia. It is regarded as one of the shortest rivers in Europe. The Ombla arises as strong karst spring in a large cave near the district Komolac about five kilometers in a straight line north of the city center of Dubrovnik.

Origin of the water

The majority of the water of the Ombla is fed by the river Trebišnjica. This seeps 20 km from the Ombla source away in the lower Popovo Polje, near the Croatian border, in several cleft- like infiltration points.

Data

The Ombla is depending on your perspective between 20 meters and 4.2 kilometers long, but quite wide and very rich in water; on the map it appears as a bay of the Adriatic Sea north of Dubrovnik. Their mean discharge is 24 m³ / s and varies from 2.8 to 106 m³ / s The lower part of the river ( Draga ) is already flooded by the sea, but is recognized as significant undersea flow. The water depth in this area is up to 30 m. The Ombla is navigable to 3.7 km in length. Some suburbs of Dubrovnik ( Mokošica, Komolac Rožat, Prijevor Lozica ) extend along the river whose water is used in the waterworks of Dubrovnik since 1437. The not influenced by the sea part of the Ombla is only about 20 m long. It is located above a weir in close proximity to the source.