Photograph of Construction of a bridge, showing men working on structure, [s.d.]. In the foreground at center, the framework structure of a bridge can be seen. Three rows of crossing beams with spaced rows between them are visible. A man wearing a hard hat stands in one spaced row with his arms on a large beam. Another man can also be seen standing in another spaced row with tools spread across the floor. At right, two men sit in the row with crossing beams. To the right of this row, two additional men can be seen. In the background, a series of vertical beams can be seen. Several men work in this area. To the left of the beams, the top of a crane is visible. In the extreme background at center, a completed section of an arched bridge is shown. Railway cars and additional structures can be seen beyond the bridge.