Add to ORKGA support for a trestle to be built over the partially complete Grand Coulee Dam rests along the dam\u27s spillway.https://dc.ewu.edu/blonk/1613/thumbnail.jp
A crane next to a newly poured foundation section are behind a cofferdam. In the foreground, one can...
A view of the construction of Grand Coulee Dam taken from above. Cranes are visible on top of the da...
A bridge runs in front of the spillway at Grand Coulee Dam.https://dc.ewu.edu/blonk/1468/thumbnail.j...
A support for a trestle to be built over the partially complete Grand Coulee Dam rests along the dam...
Steel girders run the length of the spillway at Grand Coulee dam. Supports for a trestle will rest a...
Cranes work to complete the trestle above the foundation of Grand Coulee Dam. The supports seem to b...
View of the trestle running over the foundation at Grand Coulee Dam from the west bank of the Columb...
A portion of a railway bridge extending from the bank of the Columbia River is being erected near sh...
A crane holding a sign reading Pick Up Tools is on top of a partially constructed trestle at the G...
A suspension bridge stretches over a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1457/thu...
The photograph is taken from an angle below the top of the spillway. A railroad trestle is visible a...
Two cranes on top of a partially constructed trestle at the Grand Coulee Dam construction site. A co...
Work on the base of the dam at its western end, showing steel trestles for travelling cranes, and we...
cofferdam construction at Grand Coulee Dam.https://dc.ewu.edu/blonk/1066/thumbnail.jp
A ramp extends down the cliffside along the Grand Coulee Dam construction site. A section of railway...
A crane next to a newly poured foundation section are behind a cofferdam. In the foreground, one can...
A view of the construction of Grand Coulee Dam taken from above. Cranes are visible on top of the da...
A bridge runs in front of the spillway at Grand Coulee Dam.https://dc.ewu.edu/blonk/1468/thumbnail.j...
A support for a trestle to be built over the partially complete Grand Coulee Dam rests along the dam...
Steel girders run the length of the spillway at Grand Coulee dam. Supports for a trestle will rest a...
Cranes work to complete the trestle above the foundation of Grand Coulee Dam. The supports seem to b...
View of the trestle running over the foundation at Grand Coulee Dam from the west bank of the Columb...
A portion of a railway bridge extending from the bank of the Columbia River is being erected near sh...
A crane holding a sign reading Pick Up Tools is on top of a partially constructed trestle at the G...
A suspension bridge stretches over a cofferdam at Grand Coulee Dam.https://dc.ewu.edu/blonk/1457/thu...
The photograph is taken from an angle below the top of the spillway. A railroad trestle is visible a...
Two cranes on top of a partially constructed trestle at the Grand Coulee Dam construction site. A co...
Work on the base of the dam at its western end, showing steel trestles for travelling cranes, and we...
cofferdam construction at Grand Coulee Dam.https://dc.ewu.edu/blonk/1066/thumbnail.jp
A ramp extends down the cliffside along the Grand Coulee Dam construction site. A section of railway...
A crane next to a newly poured foundation section are behind a cofferdam. In the foreground, one can...
A view of the construction of Grand Coulee Dam taken from above. Cranes are visible on top of the da...
A bridge runs in front of the spillway at Grand Coulee Dam.https://dc.ewu.edu/blonk/1468/thumbnail.j...