Impact
Construction of the Lake Chabot dam is considered to be one of the main causes of the formation of Arrowhead Marsh in San Leandro Bay, at the mouth of San Leandro Creek near the Oakland International Airport. Coastal surveys show the marsh appearing sometime between 1855 and 1895, though logging of the San Antonio Forest may have also played a role. Aside from sedimentation caused by normal earth-fill dam construction, much of the dam's clay core and soil overburden were washed away in a storm during construction in either 1874 or 1875.
Today, Arrowhead Marsh is one of the last remaining wetlands in the East Bay, and part of Martin Luther King Jr. Regional Shoreline, while nearly all of the surrounding historic marsh has been covered with industrial development.
Read more about this topic: Lake Chabot
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