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REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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2. REPORT TYPE
1. REPORT DATE (DD-MM-YYYY)
3. DATES COVERED (From - To)
Final report
January 2002
4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
Typhoon-Induced Stage-Frequency and Overtopping Relationships for the Commercial
5b. GRANT NUMBER
Port Road, Territory of Guam
5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER
Edward F. Thompson, Norman W. Scheffner
5e. TASK NUMBER
5f. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT
NUMBER
U.S. Army Engineer Research and Development Center
Coastal and Hydraulics Laboratory
ERDC/CHL TR-02-1
3909 Halls Ferry Road
Vicksburg, MS 39180-6199
9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR/MONITOR'S ACRONYM(S)
U.S. Army Engineer District, Honolulu
Fort Shafter, HI 96858-5440
11. SPONSOR/MONITOR'S REPORT
NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT
Approved for public release; distribution is unlimited.
13. SUPPLEMENTARY NOTES
14. ABSTRACT
This report describes the procedures and results of a typhoon overtopping-frequency analysis for a vulnerable section of the
commercial port road along Cabras Island, U.S. Territory of Guam. Numerical modeling of typhoon winds, waves, storm surge, and
nearshore processes is used to estimate wave overtopping rates due to historical storm events. Alternatives modeled include the existing
fringing reef, beach, and protective seawall, and a plan configuration in which a low-crested, Core-Loc-armored berm is included in the
nearshore profile. Model overtopping rates are input to the Empirical Simulation Technique (EST) life-cycle stochastic model. Life-
cycle simulations are postprocessed to generate overtopping rate frequency-of-occurrence relationships for return periods of up to
100 years. Model results indicate that the proposed low-crested berm to be built in the nearshore profile will significantly reduce the
vulnerability of the road and port facilities to damage due to wave overtopping.
Wave overtopping
Hurricane modeling
15. SUBJECT TERMS
Empirical simulation technique
Wave setup
Numerical modeling
Wind wave modeling
Storm surge
Frequency analysis
19a. NAME OF RESPONSIBLE
16. SECURITY CLASSIFICATION OF:
17. LIMITATION
18. NUMBER
PERSON
OF ABSTRACT
OF PAGES
a. REPORT
b. ABSTRACT
c. THIS PAGE
19b. TELEPHONE NUMBER (include
area code)
127
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Standard Form 298 (Rev. 8-98)
Prescribed by ANSI Std. 239.18
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