I thought I was through photographing horizontals (see Horizontals: Rusted and Horizontals: Coated) until I saw these rusted beams. They were on Mare Island ready to be sanded, coated, and welded, if necessary. I don’t know how long they’d been there when I saw them but they weren’t there the next day. The other “horizontals” were mostly rounded tubes, these are right-angle I-beams. –Sally Mack, June 17, 2021