Gurdwaras in California are offering shelter to thousands of evacuees of Yuba City, where a sizeable chunk of Indian-Americans live, following fears of Oroville Dam collapsing. Security guards, teachers, farmers and other members of the Central Valley's large Sikh community poured into the two-story Gurdwara Sahib Sikh temple in West Sacramento late Sunday while fleeing potential flooding along the Highway 70 corridor, south of Oroville.