Assessment Of Risks, Impact On The Constructions – Coursework Example

Risk assessment when constructing near a river Lecturer’s Risk assessment when constructing near a river Constructing a structure near a river is extremely difficult as so many risks are involved. Rivers especially the large ones can result to a lot of damage on structures that are constructed near the banks. When constructing near a river source, there is increased chance of flood risk to the construction building making development dangerous and inappropriate (Hannah et al., 2011). The construction building should have a strong base foundation otherwise if poorly constructed; it can sink down, as the ground base near the river is wet. Constructions near water sources may result to destabilization of the riverbanks before or after construction allowing the construction sediments to flow in to the river. This cause water pollution and at times will alter the speed as well as the flow of water. As a result, aquatic life is destroyed as erosion and flooding results (Meyer, Haase, & Scheuer, 2009).
Before starting the construction, it is essential to conduct a flood risk assessment to determine the possibility of flooding. Appropriate flood risk measures are taken in the risk area such as appropriate application of good a good drainage systems i.e. construction of a dam to regulate water flow or diversion of the river pathway. A slit fence can also be constructed around the construction site to help in reducing the amount of sediments that will drain into the river causing pollution. Dykes can also be built along the river bend to help in reducing water pollution as well as flooding. To help in stabilizing the riverbanks, it is important to plant trees along the banks as it helps in stabilizing the area preventing building collapse and flooding (Lugeri, Kundzewicz, Genovese, Hochrainer, & Radziejewski, 2010).
References
Hannah, D. M., Demuth, S., van Lanen, H. A. J., Looser, U., Prudhomme, C., Rees, G., … Tallaksen, L. M. (2011). Large-scale river flow archives: Importance, current status and future needs. Hydrological Processes, 25, 1191–1200. doi:10.1002/hyp.7794
Lugeri, N., Kundzewicz, Z. W., Genovese, E., Hochrainer, S., & Radziejewski, M. (2010). River flood risk and adaptation in Europe-assessment of the present status. Mitigation and Adaptation Strategies for Global Change, 15, 621–639. doi:10.1007/s11027-009-9211-8
Meyer, V., Haase, D., & Scheuer, S. (2009). Flood risk assessment in European river basins--concept, methods, and challenges exemplified at the Mulde River. Integrated Environmental Assessment and Management, 5, 17–26. doi:10.1897/IEAM