Some jobs build up. They start with concrete, steel girders, plans in pencil and ink. Pieces get put together slowly, brick by brick, bolt by bolt. Then they reach up to the sky.

Some jobs dig down, through the red clay. They move water and material. Things get put in the ground then covered up like they were never there, doing their work as an afterthought. After a while, no one notices there ever was a hole in the ground.

Whether we’re up on a ladder or down in a ditch, on-site industrial photography captures the work that builds our world—and the work that keeps it running underground.