Wave Response of the Proposed Harbor at Agat, Guam. Numerical Model Investigation.
Final rept. Dec 85-Apr 86,
COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS
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A numerical study of the wave response of the proposed small-boat harbor to be located on the west coast of Guam, near Agat, is described. The base plan considered consists of a basin dredged in the coral reef at the site, connected at its south end to the ocean by a 900-ft channel. Protective structures include revetments along the shore, a 190-ft stub breakwater and revetment at the south end of the harbor, and an 885-ft detached breakwater seaward of the harbor basin. The HARBS finite element wave model is used to determine the wave response of the base plan Plan 1 and the following four alternative plans. The study found that Plan 4 extended breakwater best meets the requirements of the project. It is determined that this plan will keep the wave height in most of the harbor interior at 1 ft or lower 90 percent of the time. Plan 4 also gives the best wave protection for high water levels as in storm surges. The plan provides the best overall wave protection for the smallest increase in construction cost over Plan 1.
- Civil Engineering
- Physical and Dynamic Oceanography