The Mission Bay Branch opened its door on July 8, 2006. Located at 960 Fourth St., adjacent to Oracle Park, Mission Bay Branch is the newest San Francisco Public Library branch to be built in 40 years. This 7,500-square-foot library caters to the burgeoning Mission Bay neighborhood. Designed by San Francisco-based Santos Prescott and Associates, construction cost $3.9 million. It is located on the ground floor of a multi-use facility which also includes an adult day health center, affordable senior housing, retail space and a large community meeting room. The Mission Creek Senior Community development, which houses the library, is a collaboration between the San Francisco Public Library, Mercy Housing California, North and South of Market Adult Day Health Center, the San Francisco Redevelopment Agency and the San Francisco Department of Public Health. Mercy Services Corporation will operate the senior housing and programs, and manage the completed facility.