PL
The Polish Waters Authority, overseeing inland waters and being the body responsible for flood protection, is fully aware of the scale of problems caused by rainfall in urban areas, often not related to rivers but rather local issues with the capacity of stormwater drainage systems and areas with no runoff in cities. The recent years clearly confirm the intensification of extreme phenomena (heavy rainfall, storms), which requires immediate actions aimed at minimizing risk and damage. Considering the well-being of society and the necessity of cooperation in the face of flood risk, Wody Polskie carry out various actions aimed at supporting local government units (JST) and local institutions in this regard.
As part of the project “Retention Actions Program, an Element of Flood Risk Management in the Upper Western and Upper Eastern Vistula Region between Kraków and Zawichost,” implemented by PGW WP Regional Water Management Authority in Kraków, one of the tasks of the project is to analyze the increase in retention capacity in selected urban areas in conjunction with river flooding, along with an analysis of the impact of the stormwater drainage network.
As part of the project work for urbanized catchments, analyses will be conducted at different levels of detail for selected cities, within the framework of three variants:
Variant 1 – the most general, involving the identification of areas exposed to flooding based on the identification of areas without drainage, and indicating potential retention sites throughout the entire city – to be implemented for Rzeszów, Kielce, and Tarnów.
Variant 2 – aimed at identifying areas at risk from rainfall runoff, taking into account the impact of the drainage system in a simplified manner, implemented across the entire city – to be carried out for Rzeszów, Kielce, and Tarnów.
Variant 3 – an extended analysis for selected pilot catchments of the stormwater drainage network, presenting the impact of atmospheric precipitation on the formation of surface runoff through the stormwater system for a selected part of the city (pilot catchment), carried out using the results of a dedicated measurement campaign and additional geodetic measurements. Within this variant, potential actions to reduce risk will also be analyzed, including green-blue infrastructure, de-sealing of paved surfaces, construction of retention tanks, and the use of channel retention in the stormwater drainage network. – realizowany dla zlewni na obszarze Nowego Sącza, Rzeszowa i Kielc.
The results of these analyses will be made available to the cities for further use within their statutory activities.
It should be noted that Wody Polskie are also concurrently implementing the project “Development of a guide for identifying areas at risk of surface water flooding in urbanized areas,” aimed at developing standardized methods and tools for local government units (JST) to carry out activities and analyses related to urban flooding. The guidelines will be developed based on the analyses conducted for selected cities in the country, including Nowy Sącz and Puławy.
We warmly encourage you to participate and continue collaborating within the framework of the “Safe Vistula – Ecologically into the Future” program.