Samenvatting

Due to lack of proper stormwater drainage in the Waymouth Hills, stormwater runoff have often caused undermining of the road infrastructure and disrupting traffic flow in the study area. Sediments are often deposited to the low-lying terrain from the runoff and this reduces the storm drains capacity downstream resulting the area prone to flooding. Future urban expansion of the Waymouth Hills and the effects of climate change are predicted to further increase this problem through increased urban stormwater runoff.
This report aims to analyze a sustainable stormwater solution through a multi-criteria analysis (MCA) for the urban development in the Waymouth Hills. This was done by establishing a set of criteria relevant to the research together with the desired outcome and guidelines established by the Client; Ministry of Public Housing, Spatial Planning, Environment and Infrastructure of Sint Maarten. Furthermore, a sensitivity analysis was carried out to evaluate the MCA results.
Manual calculation together with hydrodynamic modeling simulation (done through the Autodesk Storm and Sanitary Analysis) were carried out to analyze the stormwater runoff effect in the present storm drain infrastructure and the newly designed storm drains for the future urban development. These analyses include the use of both stationary and dynamic rainfall for a 10-year storm event. Furthermore, preventative measures for potential flooding were assessed through the use of a detention pond.
A technical requirement report was drawn for the realization of the storm drains and the overall infrastructure upgrade for the future urban development for the Waymouth Hills. Lastly, recommendations were given for the measures that can be undertaken to improve for future relative projects.