Grand Coulee Dam
Grand Coulee Dam
The Grand Coulee Dam is the largest dam on the Columbia River. The U. S. Bureau of Reclamation constructed the dam between 1934 and 1941. It is the largest hydroelectric power producer in the United States. Images in this collection are taken from a photo album showing the construction of Grand Coulee Dam from 1933 to 1937. The album includes photographs of the site before construction, the Columbia River diversion, blasting, "jackhammer men," driving steel pilling and general construction photographs. It also includes one photograph of the builder's quarters, Franklin D. Roosevelt at the dedication in 1934, and photograph of Governor Clarence D. Martin formally placing the first concrete in the dam in 1935. The photographer of this album is unknown, but the photographs are 8x10 images taken with a large format camera. The album also includes a map of the damsite.
One photo album illustrating the construction of the Grand Coulee Dam from 1933 to 1937. It includes photographs of the site before construction, the Columbia River diversion, blasting, "jackhammer men," driving steel piling, and general construction…
Columbia River - Kettle Falls.
Columbia River - General view in reservoir area.
Grand Coulee Damsite - Looking west, December 1933.
Grand Coulee Damsite - Looking west, April 1937.
Grand Coulee Damsite - Looking east, December 1933.
Grand Coulee Damsite - Looking east - May, 1937.
East end, Grand Coulee Dam - Concrete placing trestles and bedrock foundation blocks - January, 1937.
Anchoring to granite - the east abutment at Grand Coulee Dam.
"Digging In" - The First shovel - December 1933.
The President's Visit - August 4, 1934.
Builders' Quarters - Government camp in the foreground; contractor's camp across the river - 1936.
Government camp and highway bridge, 1936. Upstream is west cofferdam, concrete placing trestle, and west conveyor.
West cofferdam, March 31, 1935. Length, 3000 feet, height 115 feet, over 17,000 tons steel piling, constructed in ninety days.
Driving steel piling. West cofferdam.
Excavation - Five-yard shovel loading ten-yard buggies - excavating overburden from dam foundation.
Excavation behind west cofferdam - August, 1935.
Belt conveyor - Transporting excavated material to Rattlesnake Canyon, 1 1/2 miles distant.
Conveyor stacker - discharging excavated material in Rattlesnake Canyon.
Governor Clarence D. Martin formally placing first concrete in dam, December 6, 1935.
Concrete placing - January 1936. Top of dam 280 feet above high trestle deck.
Concrete in dam. June, 1936. One millionth yard placed August 14, 1936.
Concrete placing - Dumping a four-yard concrete bucket.
Bedrock behind west cofferdam.
A five-yard shovel loading a twenty-yard "Buggy."
Night at Grand Coulee.
Jackhammer Men - with hard hats and safety belts they trim steep abutment slopes.
Upstream Face Grand Coulee Dam. 1,550,000 cubic yards of concrete in place.
West End Grand Coulee Dam - Concrete placing trestles and cranes.
The checkerboard. The pouring of concrete into interlocking blocks permits grouting of contraction joints to form monolithic mass.
A "House of Magic" - One of two concrete mixing plants, capacity 8,000 cubic yards per day each.
Cooling pipe. Water will be circulated through 2000 miles of it embedded in the dam to cool and shrink the concrete and thus facilitate grouting of construction joints.
Facilities for visitors. Some 200,000 visitors in 1936 inspected a model of the dam and from sheltered seats close to the work on each side of the river viewed the construction work and had it explained over a public address system.
"Ice Dam" - Muck flowing into deep depression in bedrock, stopped by artificially frozen arch dam.
Deepest foundation depression. Ice dam restraining the muck from flowing into pit.
Gravel Pit. Deposit from which concrete aggregates are excavated by electric shovels and belt conveyors at a rate of 2500 tons per hour.
Source of supply for the eleven million yards of sand and gravel required for the Grand Coulee Dam.
Columbia River Diverted. Two cross-river cofferdams divert stream through low sections in west portion of dam while east portion is unwatered for preparation of foundation.
Cold Concrete. Nearly 2,000,000 cubic yards of it in west end of dam with Columbia diverted through low section.
The Bucket. Downstream face of spillway with powerhouse foundation beyond.