Table 2-5
Mattituck Inlet Dredging History1
Dredged Depth
Volume Removed
Date Dredged
(ft, mlw)
(cu yd)
Disposal Site (If Known)
1907
Unknown
Unknown
1914
7
Unknown
June November 1921
7
13,468
August September 1923
7
49,500
September October 1927
7
49,186
November 1935 May 1936
7
50,785
July August 1938
7
18,312
September November 1946
7
53,893
Beach east of east jetty
2
October November 1950
7
22,913
Beach east of east jetty
August September 1955
7
31,552
Beach east of east jetty
August October 1961
7
43,550
3
6,285
4
40,980
September October 1965
7
May 1980
7
24,137
Beach east of east jetty
October 1990
7
13, 241
Beach east of east jetty
17-24 March 2004
7
13,785
Beach east of east jetty
1
Source: New York District undated compilation; (Ralston 1928).
2
Channel reorientation.
3
Dredged from channel entrance.
4
Dredged from Federal anchorage and southern portion of the channel within Mattituck Creek.
Table 2-6
Mattituck Inlet Jetty Maintenance History1
Date
Action Taken
Quantity (tons)
1901
Commencement of Federal navigation project
1906
East jetty completed
1910
Sand tightening of landward 680 ft of east jetty, sand
tightening of landward 485 ft of west jetty
1914
First full dredging of the Federal navigation channel
October 1937-August 1938
Repair of outer 100 ft of west jetty
10,000
280 ft seaward extension of west jetty
August September 1946
Repair of 110 ft of east jetty 100 ft shoreward
1,300
extension of east jetty
May July 1975
Repairs to east jetty
13,500
1996
Repairs to west jetty
~16,000
Elevation of seaward 100 ft of west jetty by 1 ft
1
Sources: New York District undated compilation; Ralston (1928); Smith (1988)
24
Chapter 2 Study Area and Physical Setting
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