<div class="description">
<ul><li><b>Scope and content:</b>  Photograph from Volume Two of a series of photo albums documenting the construction of the Grand Coulee Dam and related work on the Columbia Basin Project.  Full caption for this photograph reads:</li></ul>
"The southeast corner of the immense 3,000 foot Grand Coulee cofferdam; between the cell clusters will be seen the timber struts in the section now being excavated for placing the first concrete in the Grand Coulee Dam; overhead is a portion of the 3,500 foot suspension bridge for transporting sand and gravel from the mixer stock piles to west side mixing plant; the trestle crossing the Columbia River carries the conveyor transporting excavated material from the east side; in the near right hand foreground is the bedrock on which the big dam will be built - a bed of dense, solid granite known to be over 800 ft. thick. The Grand Coulee Dam across the Columbia River has a width at the base of 500 feet; will be 550 feet high from its foundation and 4,300 feet long, containing over 11,000,000 cubic yards of concrete."</div>
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
September 1935<div style="display: none;">date QS:P571,+1935-09-00T00:00:00Z/10</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>