The preparation and transportation of raw materials for the construction of Boulder Dam on the Colorado River in the United States. A crane and a train near the dam site. Sand and gravel picked from a pit by the crane and loaded in to rail cars. Trains arrive at a screening plant. A man near a train. The sand and gravel dumped into hoppers. Conveyor belts carry the material to the plant. A man near a conveyor belt. A man watches equipment screening over sized pebbles. A man near the screening plant. The screening plant with four towers for separating gravel of different size. Conveyor belts carry the screened gravel. Three different piles of gravel formed. Sand combined in a mixer. The towers of the plant in view. A man in a tower. Conveyor belts load the material into rail cars for transportation.
This historic stock footage available in HD video. View pricing below video player.
Type | Size | Price (USD) Comprehensive All Media License |
Price (USD) Digital-Only License |
---|---|---|---|
HD Master, Broadcast-ready (1920x1080, unmarked) | 3724 MB | $250.00 | $79.00 |
HD Screener (1920x1080, full-res with timecode) | 3724 MB | FREE or $4 (see below) | FREE or $4 (see below) |
Proxy (320x240, low-resolution, watermarked) | 60 MB | FREE or $4 (see below) | FREE or $4 (see below) |