Abstract:
Recent water level fluctuations, intense storms, and changes in freeze-thaw patterns on and around Lake Michigan have exacerbated the existing problem of shoreline erosion. Adaptable and resilient stabilization methods are needed to protect natural ecosystems and human infrastructure because of uncertainties in weather patterns related to climate change. Along the vast shoreline of Lake Michigan, many different methods of stabilization have been employed. Hardscape solutions are relatively common in highly developed areas, but are expensive and may result in unintended consequences to adjacent properties and natural ecosystems. Other, more sustainable methods have been used, but some are unproven and lack engineering design standards. Biotechnical erosion control is one such sustainable option. This paper presents the current state of practice for biotechnical erosion control around Lake Michigan. In addition, it identifies gaps in engineering design knowledge where there is a need for concise qualitative and quantitative data on long-term behavior. Finally, this paper presents preliminary results of a scale model experimental program to assess the effectiveness of biotechnical erosion control on sandy slope subjected to wave action.Â