Table 8
San Leandro Marina Breakwater
San Leandro Marina, San Francisco Bay, California
Date(
Construction and Rehabilitation History
Construction of the Marina by dredging and landfill operations was
1963
completed by the City of San Leandro.
1966
The City completed construction of a 750-ft-long dredged material
breakwater. It was composed of stiff clays dug from the adjacent
channel during dredging and had a crest el of +13 ft mllw. After
construction the breakwater eroded, and gaps were filled period-
ically with dredged material as a temporary solution.
1977
The CE completed improvements to the breakwater which consisted of
shaping the mud island and placing riprap protection. The finished
structure was 700 ft long with a crest el of +12 ft mllw and side
slopes of
withstand breaking waves of ft. Cost of the improvements was
8,579.
After construction, top soil was placed on the struc-
ture, and lost vegetation was replaced to restore wildlife.
There is no record of maintenance or repairs subsequent to Federal
1986
improvements, and the structure is in good condition.
Figure 13. San Leandro Marina, San
Francisco Bay, California
r
TOP
STONE
NOT TO SCALE
BREAKWATER CROSS SECTION
I
TRUE SCALE
28
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