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St. George Habor?Berm Breakwater Construction Considerations

by Jeffrey F. Gilman, (M.ASCE), Peratrovich, Nottingham Drage, Inc., 811 First Avenue, Suite 260, Seattle, WA 98104, United States,



Document Type: Proceeding Paper

Part of: Breakwaters '99: First International Symposium on Monitoring of Breakwaters

Abstract:

During the period 1984-1987 three berm breakwaters with a total length of approximately 800 meters were constructed at St. George Harbor on St. George Island in the Pribil of Chain of Alaska's Bering Sea. During the course of the project the author had the opportunity to make many observations in the fields of coastal dynamics, wave characteristics, Bering Sea weather patterns, characteristics of columnar basalt flows, construction techniques, quarrying techniques, construction management, and technology transfer. The St. George breakwaters are now over ten years old and have experienced design conditions. It is an appropriate time to attempt to correlate prototype performance with the quality of construction methods and quality control at the time of construction. This paper is intended to convey some of the information gathered in certain areas, such as armor stone specifications and bad weather construction productivity.

Subject Headings: Ocean waves | Construction methods | Construction management | Coastal protection structures | Breakwaters | Water waves | Seas and oceans | Bering Sea | Alaska | United States

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