Construction engineers and workers work on a construction project in the United States. A water fall. The construction engineers at the construction site. An engineer points out on a chart. A loader loads dirt into a dump truck. Engineers stand beside the truck. Giant wheels of the truck. A sign 'Fire stone' on a tire of the truck. A dam at the construction site. The engineers work on their construction project. A man signals. Construction workers spray with hoses.

US Government Archive number for this historic video is:
200 UN 7564 X 4,7,8 DNS/C