 Beginning in the mid-1800s, in attempts to make this area suitable for building, Mission Bay like most of the shoreline of the city of San Francisco, was used as a convenient place to deposit refuse from building projects and debris from the 1906 earthquake.As the marsh stabilized with the weight of the infill, the area quickly became an industrial district.With the addition of the railroad, Mission Bay became the home to shipyards, canneries, a sugar refinery and various warehouses.