Form Approved
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
July 2005
4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
Geomorphic Analysis of Mattituck Inlet and Goldsmith Inlet, Long Island,
5b. GRANT NUMBER
New York
5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER
Michael J. Morgan, Nicholas C. Kraus, Jodi M. McDonald
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-05-2
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 Corps of Engineers
Washington, DC 20314-1000
11. SPONSOR/MONITOR'S REPORT
NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT
Approved for public release; distribution is unlimited.
13. SUPPLEMENTARY NOTES
14. ABSTRACT
This study of Mattituck Inlet and Goldsmith Inlet, Long Island, NY, covers the historic and geomorphic background, literature, field
measurements, numerical modeling of tidal circulation, and analysis of inlet morphologic properties. The inlets are located 8.2 km apart
on the eastern end of the north shore of Long Island, NY, facing Long Island Sound Mattituck Inlet has a federally maintained channel
and dual jetties, and it connects the sound to Mattituck Creek. Mattituck Inlet is the only major harbor on the north fork of Long Island
is a commercial and recreational boating center. The navigation channel is maintained to a depth of 7 ft mean low water with a 2-ft
allowable overdraft. Goldsmith Inlet connects the sound to Goldsmith Pond. The inlet has a nonfunctional jetty on its west side and is
non-navigable, with typical depths ranging from 0.5 to 3 ft.
Tidal inlets on the north shore of Long Island have received little study compared to those on the south shore that open to the Atlantic
Ocean. It appears that most inlets on the north shore have been more stable and in existence longer than the inlets on the south shore.
Inlets on the north shore, therefore, hold value for further understanding of basic inlet processes, in particular, of channel cross section
and locational stability. Another motivation for the study of inlets along the north shore of Long Island is the large range in grain size of
the sediments on this coast.
(Continued)
15. SUBJECT TERMS
ADCIRC Model
Geomorphology
Inlet stability
Coastal inlets
Hydrodynamic modeling
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)
332
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
Standard Form 298 (Rev. 8-98)
Prescribed by ANSI Std. 239.18
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