A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Short-Term Alternatives for Emergency Seawall Stabilization at Nantasket Beach in Hull, Massachusetts
Located south of Boston, the Nantasket Beach Reservation has been a popular summer destination for city residents since the middle 1800's. The beach is backed by a 5,400-foot-long, World War I era concrete seawall that protects buildings and other public infrastructure against storm-driven waves. In recent years, the U.S. Army Corps (Corps) of Engineers and the Massachusetts Department of Conservation and Recreation (DCR) have been developing plans to rehabilitate the beach and seawall, which have suffered significant long-term erosion. In December 2003, two coastal storms paused damage and undermining to sections of the weakened seawall. A Corps analysis revealed a 2,000 linear foot section of the structure was unstable, and recommended immediate intervention to stabilize the wall until the permanent solution could be implemented. The DCR quickly posted the area, erected safety barriers, and implemented a monitoring program to detect imminent failure. The DCR also requested emergency declaration from state regulatory agencies to affect repairs before the 2004 beach season. This prompted coordination and intense dialogue between the Corps, DCR, Massachusetts Department of Environmental Protection (DEP), Office of Coastal Zone Management (CZM), and the representatives from the Town of Hull to evaluate alternatives for an acceptable short-term solution. Three primary alternatives considered to restore passive support and toe protection for the structure included: (1) seawall reconstruction, (2) a stone revetment and (3) a cobble berm. This paper will present the stability problem, discuss the alternatives considered, and explore the requirements of the various stakeholders in developing a consensus. The construction of the temporary solution (a stone revetment) in the summer of 2004 will also be presented.
Short-Term Alternatives for Emergency Seawall Stabilization at Nantasket Beach in Hull, Massachusetts
Located south of Boston, the Nantasket Beach Reservation has been a popular summer destination for city residents since the middle 1800's. The beach is backed by a 5,400-foot-long, World War I era concrete seawall that protects buildings and other public infrastructure against storm-driven waves. In recent years, the U.S. Army Corps (Corps) of Engineers and the Massachusetts Department of Conservation and Recreation (DCR) have been developing plans to rehabilitate the beach and seawall, which have suffered significant long-term erosion. In December 2003, two coastal storms paused damage and undermining to sections of the weakened seawall. A Corps analysis revealed a 2,000 linear foot section of the structure was unstable, and recommended immediate intervention to stabilize the wall until the permanent solution could be implemented. The DCR quickly posted the area, erected safety barriers, and implemented a monitoring program to detect imminent failure. The DCR also requested emergency declaration from state regulatory agencies to affect repairs before the 2004 beach season. This prompted coordination and intense dialogue between the Corps, DCR, Massachusetts Department of Environmental Protection (DEP), Office of Coastal Zone Management (CZM), and the representatives from the Town of Hull to evaluate alternatives for an acceptable short-term solution. Three primary alternatives considered to restore passive support and toe protection for the structure included: (1) seawall reconstruction, (2) a stone revetment and (3) a cobble berm. This paper will present the stability problem, discuss the alternatives considered, and explore the requirements of the various stakeholders in developing a consensus. The construction of the temporary solution (a stone revetment) in the summer of 2004 will also be presented.
Short-Term Alternatives for Emergency Seawall Stabilization at Nantasket Beach in Hull, Massachusetts
Winkelman, John H. (author) / Jones, Bryan N. (author)
Solutions to Coastal Disasters Conference 2005 ; 2005 ; Charleston, South Carolina, United States
Solutions to Coastal Disasters 2005 ; 354-363
2005-05-02
Conference paper
Electronic Resource
English
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