- Flood risk assessment of 54 rivers in south-east Poland, covering 29,000km².
- 3500 channel cross-sections and 326 flood maps prepared.
- 126km of flood defence walls surveyed.
Arup led a consortium defining the flood risk zones of Poland’s River San and its 53 tributaries in preparation for implementation of Polish government flood directives.
This £0.6m project covered an area of 29,000km2 and involved modelling rivers, 3,500 channel cross-sections and surveying 126km of flood defences as well as structures and bridges.
Fluvial and GIS modelling
Fluvial modelling using industry-standard Mike 11 software was conducted for all 54 rivers, based on hydrological calculations for catchments controlled and uncontrolled by water gauge stations, along with geographic information systems (GIS) modelling to establish flood zones for seven events of given probabilities.
Arup also provided technical services including catchment inventory, hydrology, data gathering, site surveys, identification of flood zones, GIS preparation of maps and final report preparation.
The firm also facilitated training sessions for local councils, showing the benefits of using digital flood maps in day-to-day work.