Introduction - TR-05-20027
Introduction cont'd - TR-05-20028
Study Site
Figure 1-1. Long Island, NY, and selected inlets and harbors
Figure 1-2. Long Island, NY, with study area inset
Figure 1-4. Mattituck Inlet and Mattituck Creek, 16 April 2003
Figure 1-5. Goldsmith Inlet and Goldsmith Pond, 16 April 2003
Figure 1-6. Shoreline from Duck Pond Point to Horton Point
Motivation
Study Objective
Study Objective cont'd
Study Area and Physical Setting
Figure 2-1. Long Island Sound region bathymetry
Figure 2-2. Harbor Hill and Ronkonkoma Moraine locations (approximate)
Figure 2-3. Study area headlands
Table 2-1 Selected Tide Ranges for Long Island Sound
Table 2-3 Calculated Significant Wave Height and Period (New York District 1999)
Longshore sediment transport - TR-05-20044
Longshore sediment transport cont'd
Mattituck Inlet History and Site Description
Figure 2-4. Mattituck Inlet as depicted in NOS T-sheet 55 (1838)
Physical description - TR-05-20048
Figure 2-7. Dredging and mining activities in and near Mattituck Inlet
Table 2-5 Mattituck Inlet Dredging History
Table 2-71 Summary of Federal Commercial Sand Mining Permits
Figure 2-8. Mattituck Inlet and jetties, view looking south, 28 March 2003
Physical setting - TR-05-20053
Figure 2-11. Bluffs east of Mattituck Inlet, 21 November 2003
Figure 2-12. Bailie's Beach primary dune, 21 November 2003. Boy Scouts of America facility is located south of dunes
Figure 2-14. Dunes at base of Mattituck Inlet east jetty, looking south, 21 November 2003
Figure - TR-05-20057
Goldsmith Inlet History and Site Description
Figure 2-19. Goldsmith Inlet as depicted in NOS T-sheet 55 (1838)
Figure 2-20. Peconic Mill at Goldsmith Inlet (by permission Southold Historical Society, Southhold, NY, undated)
Physical description - TR-05-20061
Figure 2-22. Goldsmith Inlet and Goldsmith Pond, 11 May 1955, 9 years before jetty construction
Figure 2-23. Typical gravel and some cobble armoring at Goldsmith Inlet, 28 March 2003
Goldsmith Inlet History and Site Description cont'd
Physical setting - TR-05-20065
Figure 2-26. Bluffs west of Goldsmith Inlet, 28 March 2003
Table 2-9 Goldsmith Inlet Dredging History (Augmented from Fields etal. 1999)
Figure 2-28. Sediment impoundment west of Goldsmith Inlet jetty (view looking north), circa winter 2001
Figure 2-29. Goldsmith Inlet orientation, 8 October 2002 (view looking northeast)
Figure 2-31. Goldsmith Inlet orientation and ice, 16 February 2004
Present condition cont'd
Field Data Collection and Analysis
Figure 3-1a. Datum elevation differences, Port Jefferson (not to scale)
Figure 3-1b. Datum elevation differences, Bridgeport (not to scale)
Mattituck Inlet - TR-05-20075
Figure 3-2. Mattituck Inlet bathymetry survey coverage, 6-8 October 2002
Figure 3-3. Mattituck Inlet elevation contours, 6-8 October 2002
Figure 3-4. Mattituck Inlet offshore west survey transects, 6-8 October 2002
Figure 3-5b. Beach profiles W6-W10, west of Mattituck Inlet, 6-8 October 2002
Figure 3-7a. Longshore bars west of Mattituck Inlet, 16 April 2003
Figure 3-8. Mattituck Inlet offshore east survey transects, 6-8 October 2002
Figure 3-9a. Beach profiles E1-E5, east of Mattituck Inlet, 6-8 October 2002
Figure 3-10. Beach east of Mattituck Inlet, 16 April 2003, showing irregular shoreline
Figure 3-12. Mound of slipper limpet shells, east of Mattituck Inlet, 21 November 2003
Figure 3-13. Mattituck Inlet offshore shoal and channel contour elevation, 6-8 October 2002
Flood shoal morphology
Navigation channel morphology
Figure 3-18. Mattituck Inlet Federal navigation channel elevation, 6-8 October 2002
Figure 3-20a. Mattituck Inlet channel cross sections 1-4, 6-8 October 2002 - TR-05-20089
Figure 3-20a. Mattituck Inlet channel cross sections 1-4, 6-8 October 2002 - TR-05-20090
Water level - TR-05-20091
Figure 3-23a. Mattituck Inlet water level, 19 September 8 October 2002
Figure 3-23b. Mattituck Inlet water level, 4-8 October 2002
Current - TR-05-20094
Sediment - TR-05-20095
Figure 3-25. Mattituck Inlet sediment sample locations, 6-7 May 2003
Figure 3-26a. Mattituck Inlet cumulative grain size distribution MH1-MH4, 6-7 May 2003,
Figure 3-27. Mattituck Inlet, New York District (1969) sediment sampling profile locations
Table 3-2 Grain-Size Analysis, Mattituck Inlet Offshore Area, Profiles 56 and 57 (New York District 1969)
Goldsmith Inlet - TR-05-20100
Figure 3-28a. Goldsmith Inlet bathymetry survey coverage, 6-8 October 2002
Offshore morphology
Figure 3-30a. Beach profiles W1-W3, west of Goldsmith Inlet, 6-8 October 2002
Figure 3-31a. Beach profiles E1-E5, east of Goldsmith Inlet, 6-8 October 2002
Figure 3-32. Aerial view of shoreline west of Goldsmith Inlet, 16 April 2003
Figure 3-34. Aerial view of shoreline east of Goldsmith Inlet, 16 April 2003
Figure 3-36. Goldsmith Pond flood shoal formations, 16 April 2003
Figure - TR-05-20108
Figure 3-40a. Goldsmith Inlet contours at low tide, 8 October 2002
Channel morphology
Figure 3-41. Goldsmith Inlet, channel with shoal, 28 March 2003
Figure 3-43. Goldsmith Inlet channel transects, 8 October 2002
Figure 3-44b. Goldsmith Inlet channel cross sections 5-8, 8 October 2002
Water level - TR-05-20114
Figure 3-46. Goldsmith Inlet tide gauge location, 19 September 8 October 2002
Figure 3-47b. Goldsmith Inlet water level, 57 October 2002
Current - TR-05-20117
Sediment - TR-05-20118
Figure 3-49b. Goldsmith Inlet sediment sample locations, 31 July 2003
Figure 3-50a. Goldsmith Inlet cumulative grain size S1-S4 and S15, 8 October 2002 and 31 July 2003
Figure 3-50c. Goldsmith Inlet cumulative grain size S9-S12 and S17, 8 October 2002 and 31 July 2003
Figure 3-50e. Goldsmith Inlet cumulative grain size S20-S23, 8 October 2002 and 31 July 2003
Figure 3-50g. Goldsmith Inlet cumulative grain size S28-S31, 8 October 2002 and 31 July 2003
Figure 3-51. Goldsmith Inlet median grain-size distribution of surface samples, 8 October 2002 and 31 July 2003
Table 3-3 Grain-Size Analysis, Goldsmith Inlet Offshore Area, Profiles 59 and 60
Figure 3-52. Goldsmith Inlet, New York District (1969) profile locations
Morphology Change, and Channel Shoaling and Migration
Figure 4-1a. Beach profile W1, west of Mattituck Inlet, March 1998 and 6-8 October 2002
Figure 4-1c. Breathe profile W3, west of Mattituck Inlet
Figure 4-1e. Beach profile W5, west of Mattituck Inlet
Figure 4-1g. Beach profile W7, west of Mattituck Inlet
Figure 4-2a. Offshore shoal cross-shore profile E4, March 1998 and 6-8 October 2002
Figure 4-2c. Offshore shoal cross-shore profile E6,
Figure 4-2e. Offshore shoal cross-shore profile E8
Change of offshore shoal morphology
Figure 4-3. Mattituck Inlet, circa 1930 and offshore elevation contours,
Figure 4-5a. Mattituck Inlet offshore elevation change, 1927-1969
Figure 4-5c. Mattituck Inlet offshore elevation change, 1927 - 2002
Figure 4-6. Volume change polygons, east of Mattituck Inlet, with elevation change 1927 - 2002
Figure 4-7. Offshore shoal elevation change. 1969 - 2002 and Mattituck Inlet 16 April 2003
Change of offshore shoal morphology cont'd
Figure 4-8. Mattituck Inlet offshore center lines, 8 December 1927 and 6-8 October 2002
Figure 4-9. Offshore feature center lines, 8 December 1927 and 6-8 October 2002.
Natural morphology and initial modifications (1891-1914)
Figure 4-10. Mattituck Inlet orientation, 1891
Figure 4-12. Mattituck Inlet, 1891-1900, hypothesized reorientation
Figure 4-13. Mattituck Inlet orientation, 1901
Figure 4-15. Mattituck Inlet orientation, 1913/14
Figure 4-16. Mattituck Inlet with shoaling along inside of west jetty, circa 1930s
Table 4-2 Mattituck Inlet Flood Shoal Area 1935 - 1938
Table 4-3 Estimated Mattituck Inlet Flood Shoal Volumes and Areas, 1935 - 1938
Inlet response cont'd
Figure 4-18a. Mattituck Inlet channel elevation, 1935
Figure 4-19a. Mattituck Inlet channel elevation, 4 May 1936
Figure 4-19b. Mattituck Inlet flood shoal area, 4 May 1936
Figure 4-20. Federal navigation channel study area
Figure 4-21a. Mattituck Inlet channel elevation, 3 July 1937
Figure 4-21b. Mattituck Inlet flood shoal area, 3 July 1937
Figure 4-22a. Mattituck Inlet channel elevation, 1938
Figure 4-22b. Mattituck Inlet flood shoal area, 1938
Figure 4-23a. West lobe morphology change, 19361938
Landward breaching, spit formation, and jetty modification
Figure 4-25. Shoreline recession and east jetty landward breach 1927 to 1941
Figure 4-26a. Mattituck Inlet east bank spit morphology, 1891-1927, with jetty configuration of 1914 included for reference
Figure 4-26b. Mattituck Inlet east bank spit morphology, 1935-1955, with jetty configuration of 1914 and 1946 included for reference
Figure 4-27. Mattituck Inlet Federal navigation channel configuration, prior to and after October - November 1950
Figure 4-28. Federal navigation channel and Federal anchorage dredging areas, September - October 1965.
Figure 4-29a. Mattituck Inlet, circa 1930
Figure 4-29c. Mattituck Inlet, 1941(exact month and day unknown)
Figure 4-29e. Mattituck Inlet, 1 April 1964
Figure 4-29g. Mattituck Inlet, 6 April 1976
Figure 4-29i. Mattituck Inlet, 5 April 1993
Figure 4-29k. Mattituck Inlet, 16 April 2003
Commercial mining activities.
Figure 4-30. Mining related companies and locations at Mattituck Inlet
levation change and dredging volume
Figure 4-31a. Channel elevation, June 1961 (pre-dredging)
Figure 4-31b. Channel elevation, September 1961 (post-dredging)
Figure 4-32a. Channel elevation, January 1980 (pre-dredging)
Figure 4-32c. Channel elevation change, January 1980 - May 1980
Figure 4-33b. Channel elevation, October 1990 (post-dredging)
Table 4-4 Calculated Versus Measured Dredging Volumes, Mattituck Inlet Channel
Table 4-5 Estimated Sediment Acumulations Rates, Mattituck Inlet Federal Navigation Channel
Figure 4-34a. Channel elevation change, May 1980 to August 1983
Figure 4-34c. Channel elevation change, May 1980 to September 1987
Figure 4-34e. Channel elevation change, May 1980 to October 1989
Figure 4-35. Channel elevation change, October 1990 to January 2002
Figure 4-36. Mattituck Inlet shoreline, pre- and post-dredging, 16 April 2003 and 15 April 2004
Figure 4-37a. East bank spit migration, 1941-1976
Bank encroachment analysis
Figure 4-39a. Mattituck Inlet channel cross-section A
Figure 4-39b. Mattituck Inlet channel cross-section B
Figure 4-39c. Mattituck Inlet channel cross-section C
Figure 4-40b. Boat wake obliquely incident on area of flood shoal at base of east jetty, Mattituck Inlet, 9 July 2004.
Figure 4-41a. Beach profile W1, west of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41c. Beach profile W4, west of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41e. Beach profile E2, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41g. Beach profile E4, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41i. Beach profile E6, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Channel migration - TR-05-20200
Figure 4-42a. Goldsmith Inlet channel entrance, 1938 (exact month and day unknown)
Figure 4-42c. Goldsmith Inlet channel entrance, 1 April 1964
Figure 4-42e. Goldsmith Inlet channel entrance, 28 April 1969
Figure 4-42g. Goldsmith Inlet channel entrance, 24 May 1980
Figure 4-42i. Goldsmith Inlet channel entrance, 21 April 1996
Figure 4-42k. Goldsmith Inlet channel entrance, 16 April 2003
Figure 4-43a. Goldsmith Inlet channel entrance, 1938 and 11 May 1955
Figure 4-43b. Goldsmith Inlet channel entrance, 11 May 1955, 1 April 1964, and 5 October 1966
Channel migration - TR-05-20209
Figure 4-43d. Goldsmith Inlet channel entrance , 5 April 1993 and 21 April 1996
Figure 4-44a. Goldsmith Inlet channel entrance orientation, 1993-2003
Figure 4-44b. Goldsmith Inlet channel entrance orientation, 2002-2004
Figure - TR-05-20213
Figure 4-46a. Goldsmith Inlet natural flood shoal, 1938
igure 4-46c. Goldsmith Inlet channel with partially intact in-channel flood shoal, 1 April 1964
Figure 4-46d. Goldsmith Inlet channel with partially intact in-channel flood shoal, 5 October 1966
Figure 4-46f. Goldsmith Inlet channel, 6 April 1976
Figure 4-46h. Goldsmith Inlet channel, 5 April 1993
Figure 4-46j. Goldsmith Inlet channel, 16 April 2003
Channel migration - TR-05-20220
Figure 4-47a. Goldsmith Inlet channel center, 11 May 1955 and 1 April 1964
Figure 4-47c. Goldsmith Inlet channel center, 6 April 1976 and 24 May 1980
Figure 4-47e. Goldsmith Inlet channel center, 16 April 2003 and 15 April 2004
Figure 4-48a. Goldsmith Inlet flood shoal, 11 May 1955 and 1 April 1964
Figure 4-48c. Goldsmith Inlet flood shoal, 5 April 1993 and 21 April 1996
Summary of morphology change at Goldsmith Inlet - TR-05-20226
Figure 4-50. Goldsmith Inlet, east bank wetlands, with protective sand bank, 8 October 2002
Table 4-6 Summary of Morphology Change at Goldsmitth Inlet, 1955 to Present
Summary of morphology change at Goldsmith Inlet - TR-05-20229
Circulation Analysis
Figure 5-1. Regional ADCIRC grid - New York Bight and Long Island Sound
Figure - TR-05-20232
Figure 5-4. NOS stations and 19 Septem
Figure 5-5a. Water level at Eaton's Neck, Hunington Harbor; NOS measurements and ADCIRC calculations, 19 September 8 October 2002
Figure 5-5c. Water level at New Harbor, New Haven; NOS measurements and ADCIRC calculations, 19 September - 8 October 2002
Figure 5-5e. Water level at Kings Point; NOS measurements and ADCIRC calculations, 19 September - 8 October 2002
Local validation
Figure 5-6c. Water level at Mattituck Creek; measurments and ADCIRC calculations, 19 September - 8 October 2002
Pre-dredging condition (2002)
Figure 5-8a. Near-maximum flood-tide velocity, Mattituck Inlet offshore area, 1200 GMT, 7 October 2002.
Figure 5-8c. Near-maximum flood-tide velocity, Mattituck Inlet offshore shoal area, 12 GMT, 7 October 2002
Figure 5-8e. Near-maximum ebb-tide velocity, Mattituck Inlet offshore shoal area, 1830 GMT, October 2002
Figure 5-8g. Flood-current eddies and depth, directly west Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9a. Near-maximum flood-tide velocity Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9b. Near-maximum flood-tide velocity and depth, Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9d. Near-maximum ebb-tide velocity and depth, Mattituck Inlet, 1830 GMT, 7 October 2002
Figure 5-10b. Near-maximum flood-tide velocity and depth, Mattituck Inlet flood shoal area, 1200 GMT, 7 October 2002
Alternative 1: Post-dredging morphology
Figure 5-11a. Near-maximum flood-tide velocity, Mattituck Inlet, pre-dredging grid
Figure 5-11c. Near-maximum ebb-tide velocity, Mattituck Inlet, pre-dredging grid
Figure 5-11e. Near-maximum flood-tide velocity and depth, Mattituck Inlet pre-dredging grid
Figure 5-12. Comparative current velocity plot locations
Figure 5-13b. Current velocity directly north of Mattituck Inlet east bank flood shoal, pre-dredging, and synthetic post-dredging condition (Location B)
Alternative 2: Natural morphology with offshore shoal
Figure 5-14a. Mattituck Inlet natural state, near-maximum offshore spring flood-tide velocity, 1200 on 7 October 2002
Figure 5-14c. Mattituck Inlet natural state, offshore and inlet spring flood-tide velocity, 1230 on October 2002
Figure 5-14e. Mattituck Inlet natural state, offshore spring ebb-tide and inlet spring flood-tide velocity , 1530 on 7 October 2002
Figure 5-14g. Mattituck Inlet natural state, offshore spring ebb-tide and inlet near maximum spring ebb-tide velocity, 2100 on 7 October 2002
Figure 5-14i. Mattituck Inlet natural state, near maximum offshore spring flood-tide and inlet ebb-tide velocity, 0030 on 8 October 2002
Figure 5-16a. Mattituck Inlet natural state and offshore water level comparison
Figure 5-16c. Mattituck Inlet natural state and offshore water level comparison
Figure 5-17b. Mattituck Inlet natural state and offshore current velocity comparison
Offshore shoal.
Figure 5-18b. Near-maximum offshore flood-tide velocity and depth, Mattituck Inlet offshore shoal area, 1200 GMT on 7 October 2002
Figure 5-18d. Near-maximum inlet flood-tide velocity and depth, Mattituck Inlet offshore shoal area, 1430 GMT on 7 October
Figure 5-18f. Near-maximum offshore ebb-tide velocity and depth, Mattituck Inlet offshore shoal area, 1830 GMT on 7 October
Figure 5-18g. Near-maximum inlet ebb-tide velocity, Mattituck Inlet offshore shoal area, 2030 GMT on 7 October 2002
Figure 5-19. Current velocity comparison plot locations
Goldsmith Inlet - TR-05-20269
Figure 5-21. DYNLET grid of Goldsmith Inlet, with nodes and extents of nodal cross sections
Model validation cont'd
Figure 5-22a. Water-level measurements offshore of Goldsmith Inlet and Node 2 calculations, 20 September - 8 October 2002
Figure 5-22c. Water-level measurements at Goldsmith Pond and DYNLET Node 30 calculations, 20 September - 8 October 2002
Figure 5-23a. Current velocity measurement and calculated velocities at Nodes 13 and 14, 7-8 October 2002
Discussion of tidal asymmetry
Figure 5-24a. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 5 and 8 calculations, 5-8 October 2002
Figure 5-24b. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 8 and 9 calculations, 5-8 October 2002
Figure 5-24d. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 10 and 15 calculations, 5-8 October 2002
Figure 5-24f. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 20 and 30 c alculations, 5-8 October 2002
Figure 5-25b. Discharge at Goldsmith Inlet, DYNLET Nodes 9 and 10 calculations, 5-8 October 2002
Discussion of current velocity
Figure 5-26b. Current velocity calculations offshore of Goldsmith Inlet and DYNLET Nodes 7 and 8 calculations, 5-8 October 2002
Figure 5-26d. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 9 and 10 calculations, 5-8 October 2002
Figure 5-26f. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 11 and 13 calculations, 5-8 October 2002
Figure 5-26h. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 16 and 17 calculations, 5-8 October 2002
Figure 5-26j. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 21 and 22 c alculations, 5-8 October 2002
Figure 5-27. Maximum calculated flood and ebb -spring-tide current speed and water elev ation Goldsmith Inlet, 7 October 2002
Figure 5-28a. Goldsmith Inlet spring flood-tide maximum current velocity, total calculation domain
Figure 5-28c. Goldsmith Inlet spring flood-tide maximum current velocity, inlet channel
Figure - TR-05-20290
Inlet Morphology and Stability
Figure 6-1. Classification of tidal inlet morphology (after Davis and Hayes 1984)
Table 6-1 Inlet Bypassing and Channel Cross-Sectional Stability Classification of Inlets
Inlet Stability - TR-05-20294
Hydraulic efficiency
Ebb shoal volume
Mattituck Inlet - TR-05-20297
Table 6-3 Mattituck Inlet Ratio Associated Physical Quantities
Figure 6-2. Tidal prism-channel area relation, Mattiuck Inlet and Atlantic coast dual jettied inlets
Figure 6-4. Mattituck Creek water-level measurements and calculations by CEA model
Figure 6-5. Escoffier curve calculated for Mattituck Inlet, CEA model
Mattituck Inlet flood shoal
Figure 6-6. Shoaling at Mattituck Inlet and Mattituck Creek, 6-8 October 2002
Goldsmith Inlet - TR-05-20304
Goldsmith Inlet channel cross-sectional area stability
Figure 6-7. Goldsmith Pond water-level measurements and calculations by CEA model
Figure 6-8. Escoffier curve calculated for Goldsmith Inlet, CEA model
Goldsmith Inlet ebb shoal
Figure 6-10. Shoaling at Goldsmith Inlet and Goldsmith Pond, 8 October 2002
Table 6-7 Goldsmith Inlet Flood Shoal and Physical Quantities
Figure 6-11. Comparison of channel cross section and tidal prism relations
Comparative Analysis and Conclusions
Summary of Inlet Characteristics
Table 7-3 Mattituck and Goldsmith Inlet - Hydrodynamic Characteristics
General features of geomorphology
Anthropogenic influences
Hydrodynamics and tidal shoals
Mattituck Inlet, Conclusions
Mattituck Inlet, Conclusions cont'd
Goldsmith Inlet, Conclusions
Recommendations for Future Studies
Recommendations for Future Studies cont'd
References - TR-05-20323
References cont'd - TR-05-20324
References cont'd - TR-05-20325
References cont 'd
References cont'd - TR-05-20327
References cont'd - TR-05-20328
References cont'd - TR-05-20329
REPORT DOCUMENTATION PAGE - TR-05-20331
ABSTRACT (Concluded) - TR-05-20332
TR-05-2
Introduction cont'd - TR-05-20028
Study Site
Figure 1-1. Long Island, NY, and selected inlets and harbors
Figure 1-2. Long Island, NY, with study area inset
Figure 1-4. Mattituck Inlet and Mattituck Creek, 16 April 2003
Figure 1-5. Goldsmith Inlet and Goldsmith Pond, 16 April 2003
Figure 1-6. Shoreline from Duck Pond Point to Horton Point
Motivation
Study Objective
Study Objective cont'd
Study Area and Physical Setting
Figure 2-1. Long Island Sound region bathymetry
Figure 2-2. Harbor Hill and Ronkonkoma Moraine locations (approximate)
Figure 2-3. Study area headlands
Table 2-1 Selected Tide Ranges for Long Island Sound
Table 2-3 Calculated Significant Wave Height and Period (New York District 1999)
Longshore sediment transport - TR-05-20044
Longshore sediment transport cont'd
Mattituck Inlet History and Site Description
Figure 2-4. Mattituck Inlet as depicted in NOS T-sheet 55 (1838)
Physical description - TR-05-20048
Figure 2-7. Dredging and mining activities in and near Mattituck Inlet
Table 2-5 Mattituck Inlet Dredging History
Table 2-71 Summary of Federal Commercial Sand Mining Permits
Figure 2-8. Mattituck Inlet and jetties, view looking south, 28 March 2003
Physical setting - TR-05-20053
Figure 2-11. Bluffs east of Mattituck Inlet, 21 November 2003
Figure 2-12. Bailie's Beach primary dune, 21 November 2003. Boy Scouts of America facility is located south of dunes
Figure 2-14. Dunes at base of Mattituck Inlet east jetty, looking south, 21 November 2003
Figure - TR-05-20057
Goldsmith Inlet History and Site Description
Figure 2-19. Goldsmith Inlet as depicted in NOS T-sheet 55 (1838)
Figure 2-20. Peconic Mill at Goldsmith Inlet (by permission Southold Historical Society, Southhold, NY, undated)
Physical description - TR-05-20061
Figure 2-22. Goldsmith Inlet and Goldsmith Pond, 11 May 1955, 9 years before jetty construction
Figure 2-23. Typical gravel and some cobble armoring at Goldsmith Inlet, 28 March 2003
Goldsmith Inlet History and Site Description cont'd
Physical setting - TR-05-20065
Figure 2-26. Bluffs west of Goldsmith Inlet, 28 March 2003
Table 2-9 Goldsmith Inlet Dredging History (Augmented from Fields etal. 1999)
Figure 2-28. Sediment impoundment west of Goldsmith Inlet jetty (view looking north), circa winter 2001
Figure 2-29. Goldsmith Inlet orientation, 8 October 2002 (view looking northeast)
Figure 2-31. Goldsmith Inlet orientation and ice, 16 February 2004
Present condition cont'd
Field Data Collection and Analysis
Figure 3-1a. Datum elevation differences, Port Jefferson (not to scale)
Figure 3-1b. Datum elevation differences, Bridgeport (not to scale)
Mattituck Inlet - TR-05-20075
Figure 3-2. Mattituck Inlet bathymetry survey coverage, 6-8 October 2002
Figure 3-3. Mattituck Inlet elevation contours, 6-8 October 2002
Figure 3-4. Mattituck Inlet offshore west survey transects, 6-8 October 2002
Figure 3-5b. Beach profiles W6-W10, west of Mattituck Inlet, 6-8 October 2002
Figure 3-7a. Longshore bars west of Mattituck Inlet, 16 April 2003
Figure 3-8. Mattituck Inlet offshore east survey transects, 6-8 October 2002
Figure 3-9a. Beach profiles E1-E5, east of Mattituck Inlet, 6-8 October 2002
Figure 3-10. Beach east of Mattituck Inlet, 16 April 2003, showing irregular shoreline
Figure 3-12. Mound of slipper limpet shells, east of Mattituck Inlet, 21 November 2003
Figure 3-13. Mattituck Inlet offshore shoal and channel contour elevation, 6-8 October 2002
Flood shoal morphology
Navigation channel morphology
Figure 3-18. Mattituck Inlet Federal navigation channel elevation, 6-8 October 2002
Figure 3-20a. Mattituck Inlet channel cross sections 1-4, 6-8 October 2002 - TR-05-20089
Figure 3-20a. Mattituck Inlet channel cross sections 1-4, 6-8 October 2002 - TR-05-20090
Water level - TR-05-20091
Figure 3-23a. Mattituck Inlet water level, 19 September 8 October 2002
Figure 3-23b. Mattituck Inlet water level, 4-8 October 2002
Current - TR-05-20094
Sediment - TR-05-20095
Figure 3-25. Mattituck Inlet sediment sample locations, 6-7 May 2003
Figure 3-26a. Mattituck Inlet cumulative grain size distribution MH1-MH4, 6-7 May 2003,
Figure 3-27. Mattituck Inlet, New York District (1969) sediment sampling profile locations
Table 3-2 Grain-Size Analysis, Mattituck Inlet Offshore Area, Profiles 56 and 57 (New York District 1969)
Goldsmith Inlet - TR-05-20100
Figure 3-28a. Goldsmith Inlet bathymetry survey coverage, 6-8 October 2002
Offshore morphology
Figure 3-30a. Beach profiles W1-W3, west of Goldsmith Inlet, 6-8 October 2002
Figure 3-31a. Beach profiles E1-E5, east of Goldsmith Inlet, 6-8 October 2002
Figure 3-32. Aerial view of shoreline west of Goldsmith Inlet, 16 April 2003
Figure 3-34. Aerial view of shoreline east of Goldsmith Inlet, 16 April 2003
Figure 3-36. Goldsmith Pond flood shoal formations, 16 April 2003
Figure - TR-05-20108
Figure 3-40a. Goldsmith Inlet contours at low tide, 8 October 2002
Channel morphology
Figure 3-41. Goldsmith Inlet, channel with shoal, 28 March 2003
Figure 3-43. Goldsmith Inlet channel transects, 8 October 2002
Figure 3-44b. Goldsmith Inlet channel cross sections 5-8, 8 October 2002
Water level - TR-05-20114
Figure 3-46. Goldsmith Inlet tide gauge location, 19 September 8 October 2002
Figure 3-47b. Goldsmith Inlet water level, 57 October 2002
Current - TR-05-20117
Sediment - TR-05-20118
Figure 3-49b. Goldsmith Inlet sediment sample locations, 31 July 2003
Figure 3-50a. Goldsmith Inlet cumulative grain size S1-S4 and S15, 8 October 2002 and 31 July 2003
Figure 3-50c. Goldsmith Inlet cumulative grain size S9-S12 and S17, 8 October 2002 and 31 July 2003
Figure 3-50e. Goldsmith Inlet cumulative grain size S20-S23, 8 October 2002 and 31 July 2003
Figure 3-50g. Goldsmith Inlet cumulative grain size S28-S31, 8 October 2002 and 31 July 2003
Figure 3-51. Goldsmith Inlet median grain-size distribution of surface samples, 8 October 2002 and 31 July 2003
Table 3-3 Grain-Size Analysis, Goldsmith Inlet Offshore Area, Profiles 59 and 60
Figure 3-52. Goldsmith Inlet, New York District (1969) profile locations
Morphology Change, and Channel Shoaling and Migration
Figure 4-1a. Beach profile W1, west of Mattituck Inlet, March 1998 and 6-8 October 2002
Figure 4-1c. Breathe profile W3, west of Mattituck Inlet
Figure 4-1e. Beach profile W5, west of Mattituck Inlet
Figure 4-1g. Beach profile W7, west of Mattituck Inlet
Figure 4-2a. Offshore shoal cross-shore profile E4, March 1998 and 6-8 October 2002
Figure 4-2c. Offshore shoal cross-shore profile E6,
Figure 4-2e. Offshore shoal cross-shore profile E8
Change of offshore shoal morphology
Figure 4-3. Mattituck Inlet, circa 1930 and offshore elevation contours,
Figure 4-5a. Mattituck Inlet offshore elevation change, 1927-1969
Figure 4-5c. Mattituck Inlet offshore elevation change, 1927 - 2002
Figure 4-6. Volume change polygons, east of Mattituck Inlet, with elevation change 1927 - 2002
Figure 4-7. Offshore shoal elevation change. 1969 - 2002 and Mattituck Inlet 16 April 2003
Change of offshore shoal morphology cont'd
Figure 4-8. Mattituck Inlet offshore center lines, 8 December 1927 and 6-8 October 2002
Figure 4-9. Offshore feature center lines, 8 December 1927 and 6-8 October 2002.
Natural morphology and initial modifications (1891-1914)
Figure 4-10. Mattituck Inlet orientation, 1891
Figure 4-12. Mattituck Inlet, 1891-1900, hypothesized reorientation
Figure 4-13. Mattituck Inlet orientation, 1901
Figure 4-15. Mattituck Inlet orientation, 1913/14
Figure 4-16. Mattituck Inlet with shoaling along inside of west jetty, circa 1930s
Table 4-2 Mattituck Inlet Flood Shoal Area 1935 - 1938
Table 4-3 Estimated Mattituck Inlet Flood Shoal Volumes and Areas, 1935 - 1938
Inlet response cont'd
Figure 4-18a. Mattituck Inlet channel elevation, 1935
Figure 4-19a. Mattituck Inlet channel elevation, 4 May 1936
Figure 4-19b. Mattituck Inlet flood shoal area, 4 May 1936
Figure 4-20. Federal navigation channel study area
Figure 4-21a. Mattituck Inlet channel elevation, 3 July 1937
Figure 4-21b. Mattituck Inlet flood shoal area, 3 July 1937
Figure 4-22a. Mattituck Inlet channel elevation, 1938
Figure 4-22b. Mattituck Inlet flood shoal area, 1938
Figure 4-23a. West lobe morphology change, 19361938
Landward breaching, spit formation, and jetty modification
Figure 4-25. Shoreline recession and east jetty landward breach 1927 to 1941
Figure 4-26a. Mattituck Inlet east bank spit morphology, 1891-1927, with jetty configuration of 1914 included for reference
Figure 4-26b. Mattituck Inlet east bank spit morphology, 1935-1955, with jetty configuration of 1914 and 1946 included for reference
Figure 4-27. Mattituck Inlet Federal navigation channel configuration, prior to and after October - November 1950
Figure 4-28. Federal navigation channel and Federal anchorage dredging areas, September - October 1965.
Figure 4-29a. Mattituck Inlet, circa 1930
Figure 4-29c. Mattituck Inlet, 1941(exact month and day unknown)
Figure 4-29e. Mattituck Inlet, 1 April 1964
Figure 4-29g. Mattituck Inlet, 6 April 1976
Figure 4-29i. Mattituck Inlet, 5 April 1993
Figure 4-29k. Mattituck Inlet, 16 April 2003
Commercial mining activities.
Figure 4-30. Mining related companies and locations at Mattituck Inlet
levation change and dredging volume
Figure 4-31a. Channel elevation, June 1961 (pre-dredging)
Figure 4-31b. Channel elevation, September 1961 (post-dredging)
Figure 4-32a. Channel elevation, January 1980 (pre-dredging)
Figure 4-32c. Channel elevation change, January 1980 - May 1980
Figure 4-33b. Channel elevation, October 1990 (post-dredging)
Table 4-4 Calculated Versus Measured Dredging Volumes, Mattituck Inlet Channel
Table 4-5 Estimated Sediment Acumulations Rates, Mattituck Inlet Federal Navigation Channel
Figure 4-34a. Channel elevation change, May 1980 to August 1983
Figure 4-34c. Channel elevation change, May 1980 to September 1987
Figure 4-34e. Channel elevation change, May 1980 to October 1989
Figure 4-35. Channel elevation change, October 1990 to January 2002
Figure 4-36. Mattituck Inlet shoreline, pre- and post-dredging, 16 April 2003 and 15 April 2004
Figure 4-37a. East bank spit migration, 1941-1976
Bank encroachment analysis
Figure 4-39a. Mattituck Inlet channel cross-section A
Figure 4-39b. Mattituck Inlet channel cross-section B
Figure 4-39c. Mattituck Inlet channel cross-section C
Figure 4-40b. Boat wake obliquely incident on area of flood shoal at base of east jetty, Mattituck Inlet, 9 July 2004.
Figure 4-41a. Beach profile W1, west of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41c. Beach profile W4, west of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41e. Beach profile E2, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41g. Beach profile E4, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Figure 4-41i. Beach profile E6, east of Goldsmith Inlet, March 1998 and 6-8 October 2002
Channel migration - TR-05-20200
Figure 4-42a. Goldsmith Inlet channel entrance, 1938 (exact month and day unknown)
Figure 4-42c. Goldsmith Inlet channel entrance, 1 April 1964
Figure 4-42e. Goldsmith Inlet channel entrance, 28 April 1969
Figure 4-42g. Goldsmith Inlet channel entrance, 24 May 1980
Figure 4-42i. Goldsmith Inlet channel entrance, 21 April 1996
Figure 4-42k. Goldsmith Inlet channel entrance, 16 April 2003
Figure 4-43a. Goldsmith Inlet channel entrance, 1938 and 11 May 1955
Figure 4-43b. Goldsmith Inlet channel entrance, 11 May 1955, 1 April 1964, and 5 October 1966
Channel migration - TR-05-20209
Figure 4-43d. Goldsmith Inlet channel entrance , 5 April 1993 and 21 April 1996
Figure 4-44a. Goldsmith Inlet channel entrance orientation, 1993-2003
Figure 4-44b. Goldsmith Inlet channel entrance orientation, 2002-2004
Figure - TR-05-20213
Figure 4-46a. Goldsmith Inlet natural flood shoal, 1938
igure 4-46c. Goldsmith Inlet channel with partially intact in-channel flood shoal, 1 April 1964
Figure 4-46d. Goldsmith Inlet channel with partially intact in-channel flood shoal, 5 October 1966
Figure 4-46f. Goldsmith Inlet channel, 6 April 1976
Figure 4-46h. Goldsmith Inlet channel, 5 April 1993
Figure 4-46j. Goldsmith Inlet channel, 16 April 2003
Channel migration - TR-05-20220
Figure 4-47a. Goldsmith Inlet channel center, 11 May 1955 and 1 April 1964
Figure 4-47c. Goldsmith Inlet channel center, 6 April 1976 and 24 May 1980
Figure 4-47e. Goldsmith Inlet channel center, 16 April 2003 and 15 April 2004
Figure 4-48a. Goldsmith Inlet flood shoal, 11 May 1955 and 1 April 1964
Figure 4-48c. Goldsmith Inlet flood shoal, 5 April 1993 and 21 April 1996
Summary of morphology change at Goldsmith Inlet - TR-05-20226
Figure 4-50. Goldsmith Inlet, east bank wetlands, with protective sand bank, 8 October 2002
Table 4-6 Summary of Morphology Change at Goldsmitth Inlet, 1955 to Present
Summary of morphology change at Goldsmith Inlet - TR-05-20229
Circulation Analysis
Figure 5-1. Regional ADCIRC grid - New York Bight and Long Island Sound
Figure - TR-05-20232
Figure 5-4. NOS stations and 19 Septem
Figure 5-5a. Water level at Eaton's Neck, Hunington Harbor; NOS measurements and ADCIRC calculations, 19 September 8 October 2002
Figure 5-5c. Water level at New Harbor, New Haven; NOS measurements and ADCIRC calculations, 19 September - 8 October 2002
Figure 5-5e. Water level at Kings Point; NOS measurements and ADCIRC calculations, 19 September - 8 October 2002
Local validation
Figure 5-6c. Water level at Mattituck Creek; measurments and ADCIRC calculations, 19 September - 8 October 2002
Pre-dredging condition (2002)
Figure 5-8a. Near-maximum flood-tide velocity, Mattituck Inlet offshore area, 1200 GMT, 7 October 2002.
Figure 5-8c. Near-maximum flood-tide velocity, Mattituck Inlet offshore shoal area, 12 GMT, 7 October 2002
Figure 5-8e. Near-maximum ebb-tide velocity, Mattituck Inlet offshore shoal area, 1830 GMT, October 2002
Figure 5-8g. Flood-current eddies and depth, directly west Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9a. Near-maximum flood-tide velocity Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9b. Near-maximum flood-tide velocity and depth, Mattituck Inlet, 1200 GMT, 7 October 2002
Figure 5-9d. Near-maximum ebb-tide velocity and depth, Mattituck Inlet, 1830 GMT, 7 October 2002
Figure 5-10b. Near-maximum flood-tide velocity and depth, Mattituck Inlet flood shoal area, 1200 GMT, 7 October 2002
Alternative 1: Post-dredging morphology
Figure 5-11a. Near-maximum flood-tide velocity, Mattituck Inlet, pre-dredging grid
Figure 5-11c. Near-maximum ebb-tide velocity, Mattituck Inlet, pre-dredging grid
Figure 5-11e. Near-maximum flood-tide velocity and depth, Mattituck Inlet pre-dredging grid
Figure 5-12. Comparative current velocity plot locations
Figure 5-13b. Current velocity directly north of Mattituck Inlet east bank flood shoal, pre-dredging, and synthetic post-dredging condition (Location B)
Alternative 2: Natural morphology with offshore shoal
Figure 5-14a. Mattituck Inlet natural state, near-maximum offshore spring flood-tide velocity, 1200 on 7 October 2002
Figure 5-14c. Mattituck Inlet natural state, offshore and inlet spring flood-tide velocity, 1230 on October 2002
Figure 5-14e. Mattituck Inlet natural state, offshore spring ebb-tide and inlet spring flood-tide velocity , 1530 on 7 October 2002
Figure 5-14g. Mattituck Inlet natural state, offshore spring ebb-tide and inlet near maximum spring ebb-tide velocity, 2100 on 7 October 2002
Figure 5-14i. Mattituck Inlet natural state, near maximum offshore spring flood-tide and inlet ebb-tide velocity, 0030 on 8 October 2002
Figure 5-16a. Mattituck Inlet natural state and offshore water level comparison
Figure 5-16c. Mattituck Inlet natural state and offshore water level comparison
Figure 5-17b. Mattituck Inlet natural state and offshore current velocity comparison
Offshore shoal.
Figure 5-18b. Near-maximum offshore flood-tide velocity and depth, Mattituck Inlet offshore shoal area, 1200 GMT on 7 October 2002
Figure 5-18d. Near-maximum inlet flood-tide velocity and depth, Mattituck Inlet offshore shoal area, 1430 GMT on 7 October
Figure 5-18f. Near-maximum offshore ebb-tide velocity and depth, Mattituck Inlet offshore shoal area, 1830 GMT on 7 October
Figure 5-18g. Near-maximum inlet ebb-tide velocity, Mattituck Inlet offshore shoal area, 2030 GMT on 7 October 2002
Figure 5-19. Current velocity comparison plot locations
Goldsmith Inlet - TR-05-20269
Figure 5-21. DYNLET grid of Goldsmith Inlet, with nodes and extents of nodal cross sections
Model validation cont'd
Figure 5-22a. Water-level measurements offshore of Goldsmith Inlet and Node 2 calculations, 20 September - 8 October 2002
Figure 5-22c. Water-level measurements at Goldsmith Pond and DYNLET Node 30 calculations, 20 September - 8 October 2002
Figure 5-23a. Current velocity measurement and calculated velocities at Nodes 13 and 14, 7-8 October 2002
Discussion of tidal asymmetry
Figure 5-24a. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 5 and 8 calculations, 5-8 October 2002
Figure 5-24b. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 8 and 9 calculations, 5-8 October 2002
Figure 5-24d. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 10 and 15 calculations, 5-8 October 2002
Figure 5-24f. Water-level measurements offshore of Goldsmith Inlet and DYNLET Nodes 20 and 30 c alculations, 5-8 October 2002
Figure 5-25b. Discharge at Goldsmith Inlet, DYNLET Nodes 9 and 10 calculations, 5-8 October 2002
Discussion of current velocity
Figure 5-26b. Current velocity calculations offshore of Goldsmith Inlet and DYNLET Nodes 7 and 8 calculations, 5-8 October 2002
Figure 5-26d. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 9 and 10 calculations, 5-8 October 2002
Figure 5-26f. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 11 and 13 calculations, 5-8 October 2002
Figure 5-26h. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 16 and 17 calculations, 5-8 October 2002
Figure 5-26j. Current velocity calculations offshore of Goldsmith Pond and DYNLET Nodes 21 and 22 c alculations, 5-8 October 2002
Figure 5-27. Maximum calculated flood and ebb -spring-tide current speed and water elev ation Goldsmith Inlet, 7 October 2002
Figure 5-28a. Goldsmith Inlet spring flood-tide maximum current velocity, total calculation domain
Figure 5-28c. Goldsmith Inlet spring flood-tide maximum current velocity, inlet channel
Figure - TR-05-20290
Inlet Morphology and Stability
Figure 6-1. Classification of tidal inlet morphology (after Davis and Hayes 1984)
Table 6-1 Inlet Bypassing and Channel Cross-Sectional Stability Classification of Inlets
Inlet Stability - TR-05-20294
Hydraulic efficiency
Ebb shoal volume
Mattituck Inlet - TR-05-20297
Table 6-3 Mattituck Inlet Ratio Associated Physical Quantities
Figure 6-2. Tidal prism-channel area relation, Mattiuck Inlet and Atlantic coast dual jettied inlets
Figure 6-4. Mattituck Creek water-level measurements and calculations by CEA model
Figure 6-5. Escoffier curve calculated for Mattituck Inlet, CEA model
Mattituck Inlet flood shoal
Figure 6-6. Shoaling at Mattituck Inlet and Mattituck Creek, 6-8 October 2002
Goldsmith Inlet - TR-05-20304
Goldsmith Inlet channel cross-sectional area stability
Figure 6-7. Goldsmith Pond water-level measurements and calculations by CEA model
Figure 6-8. Escoffier curve calculated for Goldsmith Inlet, CEA model
Goldsmith Inlet ebb shoal
Figure 6-10. Shoaling at Goldsmith Inlet and Goldsmith Pond, 8 October 2002
Table 6-7 Goldsmith Inlet Flood Shoal and Physical Quantities
Figure 6-11. Comparison of channel cross section and tidal prism relations
Comparative Analysis and Conclusions
Summary of Inlet Characteristics
Table 7-3 Mattituck and Goldsmith Inlet - Hydrodynamic Characteristics
General features of geomorphology
Anthropogenic influences
Hydrodynamics and tidal shoals
Mattituck Inlet, Conclusions
Mattituck Inlet, Conclusions cont'd
Goldsmith Inlet, Conclusions
Recommendations for Future Studies
Recommendations for Future Studies cont'd
References - TR-05-20323
References cont'd - TR-05-20324
References cont'd - TR-05-20325
References cont 'd
References cont'd - TR-05-20327
References cont'd - TR-05-20328
References cont'd - TR-05-20329
REPORT DOCUMENTATION PAGE - TR-05-20331
ABSTRACT (Concluded) - TR-05-20332
TR-05-2
