Samenvatting

The combined impacts of urbanization and climate change pose significant threats for flooding and water quality in urban areas. Research shows that on average 83% of the flooding events were caused by gully pot blockages, stating the crucial importance of gully pot maintenance. Roadside gully pots are an essential asset of the surface water collection infrastructure by transporting storm water and retaining road surface solids in order to reduce solid deposition in sewer systems, ensuring water treatment plant efficiency and protecting the water quality of receiving water bodies. Presently, it is an area of concern that municipalities in the Netherlands do not distinguish between areas depending on their susceptibility to gully pot blockage. This leads to redundant and delayed cleanings. To move away from this inefficient cleaning pattern, insight needs to be gained about the factors influencing solid build-up in gully pots. Due to the scarcity of research on this topic, this research aims to assess the relationship of environmental and gully pot specific factors on the solid deposition in gully pots.