Table 4
Summary of Maintenance Dredging in Bar and Entrance Channel
Bar and Entrance
Bar and Entrance Channel
Channel Volumes
Volumes Removed (cu yd)
Date
Date
Removed (cu yd)
Bar Channel deepened to 25 ft,
1896
1980
234,562
100 ft wide.
Entrance Channel deepened to 30 ft,
1939
1981
465,500
500 ft wide.
No maintenance dredging for Bar
1931-54
and Entrance Channel.
1982
389,300
1953
266,830
1983
1,009,876
Entrance Channel deepened to 40 ft:
1954-55
1984
494,000
550,450 cu yd dredged.
1955
129,743
1985
958,071
1956
116,500
1986
991,339
1957
241,00
1987
402,179
1958
243,00
1988
715,022
1959
198,700
1989
429,623
1960
400,000
1990
321,337
1961
388,000
1991
410,000
1962
742,500
1992
230,067
1963
954,500
1993
651,246
1964
478,400
1994
484,721
1965
372,600
1995
635,304
1966
575,600
1996
474,888
1967
527,500
1997
458,693
1968
473,100
1998
232,740
1969
534,00
1999
309,271
1970
370,000
2000
--
1971
220,500
--
Contact San
1972
405,500
Francisco District
Contact San
Francisco District;
1973
319,000
Appendix D
1974
390,500
1975
381,500
1976
234,800
1977
369,000
1978
304,500
1979
193,098
14
Chapter 3 Chronologies of Inlet Development
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