Meteorology Hydrology
and Water Management
Research and Operational Applications
ISSN: 2299-3835     eISSN: 2353-5652
Meteorology Hydrology and Water Management

Urban flash flood in Gdańsk - 2001. Case study

Meteorol. Hydrol. Water Manage. (2016) vol. 4 (2): 41-49
Online publication date: 2016-09-22
Gdańsk is an important Polish city and harbour situated on the southern coast of the Baltic Sea in the Gulf
of Gdańsk, in the lowland delta at the mouth of the Vistula River. At present Gdańsk has 460 thousand inhabitants and
covers an area of 262 km2. The population and the area of the city have not changed over recent decades. In previous
centuries the city was affected by severe floods, which caused considerable economic damage and the death of inhabitants.
Most of these floods were caused by ice jams. The complicated system of rivers and channels within the city
and in its close surroundings is called the Gdańsk Water Node (GWN ). The possible directions of flood hazard are:
from the sea (Martwa Vistula), and from the main Vistula channel in the case of a breached left embankment. Flood
hazard from the catchment of the RCh was not considered by city authorities.
In July 2001, a devastating flash flood unexpectedly hit the city of Gdańsk. The paper presents this flood as a case
study, without reference to other floods of similar character. It describes the city of Gdańsk, which is an important
economic, cultural, scientific, political and industrial center, the system of rivers and channels within Gdańsk which
form Gdańsk Water Node (GWN ), the precipitation regime, the course of the flood, and its effects. A special project
was formulated after the flood with the aim of developing the proposal of new hydraulic engineering solutions in the
GWN and in the catchment of Radunia Channel to prevent similar floods in the city in cases of rainfall similar to that
of 2001. The paper also presents the implementation of the proposed engineering solutions.
Gdańsk, urban flash flood, Radunia Channel, Gdańsk Water Node, engineering proposals
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