The big green beam that arrived was part of a delta frame — steel triangles that support the top girders to form the steel supports of the bridge. Surrounded by a motorcade, an oversized truck ...
One look at any of the bridges today and you’d think the concept of this engineering marvel might just be about two or three centuries old. That’s not the case, though. Bridges have existed since time ...
PITTSBURGH’S ACTION NEWS 4. KELLY: THE FIRST TWO OF 21 BEAMS FOR THE NEW FERN HOLLOW BRIDGE HAVE ARRIVED TO THE SITE IN FRICK PARK. SKY 4 CAPTURING THE OVERSIZE LOAD TRAVELING DOWN THE HIGHWAY OR ...
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