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Ustecky Kraj flood rehabilitation, Czech Republic

Severe flooding in September 2002 damaged infrastructure in the Czech Republic – from roads, railways and bridges to water supply, water treatment and sewerage systems. Many industrial facilities were also affected, including chemical plants, power supply installations and industrial complexes. One of the worst affected regions was Ústecký Kraj (Usti province).

Arial view of the flooded areas
Tackling reconstruction and rehabilitation
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Tackling reconstruction and rehabilitation We undertook a systematic aerial survey of the peak flood on the River Elbe and upper catchments to assess the areas most affected.

We were appointed to provide technical advisory and project management services to the province’s Regional Development Agency to assist in developing a programme for tackling immediate and longer term reconstruction and damage rehabilitation in areas affected by the flood.

Rapid assessment

The first step was to undertake a systematic aerial survey of the peak 1 in 100 year flood on the Elbe River and upper catchment affected by flash floods and landslides. A light aircraft and hand-held camera were used to document the extent of flooding and associated damage. This enabled us to rapidly assess the flood damage, prepare a preliminary map showing the scale of the problem and present this with accompanying photographic documentation to the government’s flood crisis committee.

We then helped prepare a programme for flood damage rehabilitation and reconstruction in Ústecký Kraj. This comprised an action plan with immediate priorities for rebuilding engineering structures and other rehabilitation interventions, plus a long term masterplan covering a wide range of aspects such as the assessment of land use and flood retention areas and the influence on flooding of natural and man-made features. Our work on the masterplan included identifying critical lands causing flash floods and landslides in the upper catchment and flood zones for specific scenarios in the lower watershed. We also developed a GIS based flood prevention and rehabilitation management information system.

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