<div class="description">
An image of workers on coal barges by Mechanics Street Bridge (16th St. Bridge). This bridge was replaced in 1923 by the current Sixteenth Street Bridge.</div>
<div class="fn value">
United States. Army. Corps of Engineers. Pittsburgh District.</div>
1911<div style="display: none;">date QS:P571,+1911-00-00T00:00:00Z/9</div>
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