COASTAL ENGINEERING

摘要

The Department of Parks and Recreation, along with the US Army Corps of Engineers (USACE) and other partners, implemented a series of emergency protective measures on Staten Island and Rockaway Beach, Queens, designed to protect lives, homes, and properties on an interim basis until a permanent and comprehensive storm-risk reduction strategy could be put into effect. The Department of Parks and Recreation performed a light detection and ranging (LIDAR) analysis of the shoreline to identify areas below the five-year still water level. The department then installed a barrier system surrounding the low-lying areas to fend off the waves and surges associated with seasonal storms. The wall was constructed using sand-filled cellular containment bags made by Barrier Force. Designed with a trapezoidal shape, they allow wave energy striking the face of the module to be dissipated as it travels up the slope, reducing the force of the wave before it can affect infrastructure. In another case, the City of Boston partnered with the Nature Conservancy and the USACE to design and implement an artificial offshore reef at Gallops Island to test an innovative coastal protection strategy. With the Coastal Resilience Tool, coastal communities and decision-makers can explore different flooding scenarios, from sea level rise to storm surge; analyze the potential impacts on communities, natural resources, and critical infrastructure like roads and schools; and develop solutions to address these realities.