"United States Reclamation Service, Grand River Dam, pier "A" and east side regulator gate wall." No date specified - Grand Valley Diversion Dam, Half a mile north of intersection of I

From the Historic American Engineering Record's survey of Grand Valley Diversion Dam. The photographer's own caption is the title above.

Shows: Grand Valley Diversion Dam as the survey found it, in the frame the survey chose.

What this does not let you conclude: The structure's present condition, or how much water it carries today; the record beside it carries the numbers. HAER surveyed what was standing, not what was decreed. HAER's compilation date; the photograph itself is undated in the record.