From February to April 2006 many rivers across Europe, especially the Elbe and Danube, swelled due to heavy rain and melting snow and rose to record levels. These are the longest rivers in Central Europe.
High Danube levels caused significant flooding in parts of Serbia, Bulgaria and Romania, with damage to property and infrastructure in localities near the shores of the river. The effects of high water across Southeastern Europe were blamed on the poor levee systems in the affected countries.
In Vidin an industrial district was flooded and over 300 people were evacuated to a tent city about 20 kilometers from the town. In Lom, Bulgaria 25 houses, a hotel, the port (which is the second biggest Bulgarian port on the River Danube), and the Danube Park were flooded. Boruna quarter in the north-western part of the city has declared a state of emergency. Of the 30,000 people who live in Lom, 6,000 people are in danger due to the flooding. The two schools are prepared to accommodate any people if found necessary. A few blocks along the water's edge in the city of Nikopol were flooded. 60 people were evacuated and 57 buildings have been flooded so far as well as the main road from Nikopol west towards Pleven. In Rousse the Danube reached 9 meters, beating the previous record at 8,88 from 1970. In total at least 400 buildings on Bulgaria's northern border have been flooded and several have been completely destroyed.
The 2006 European floods were one of the most devastating natural disaster from the History of Romania. Although there were no human victims, the estimated damage is thought to surpass the floods of 1970.
By April 16 over 848 houses were reportedly flooded, with 221 destroyed. The height of the Danube at the beginning of the flood was still below the record level registered in 1895. Romanian officials ordered the controlled flooding of thousands of hectares of unused agricultural spaces to prevent further damage in cities across Romania.