Pre-stressed concrete is an ideal material for beam bridge construction; the concrete withstands the forces of compression well and the steel rods ... beam bridges rarely span more than 250 ...
New photos of the approach to the Daniel Carter Beard Bridge show significant warping caused by the Nov. 1 fire that shut down part of the span ... of the highway's steel beams, detaching them ...
Pre-stressed concrete is an ideal material for beam bridge construction; the concrete withstands the forces of compression well and the steel rods ... beam bridges rarely span more than 250 ...
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