The stern is much too low to be an LSM. I'm 99% sure that it's LSI(L)-545, likely prior to departing for New Guinea in late summer of 1944. It was an LSI 341 class transport (class prototype below):
The bridge looks like the Golden Gate, but the only angle that would be right for that shot would make the island Alcatraz and I'm thinking that the buildings would be visible from that angle.