We recently told you how crews built a new rock base as the foundation of the approach between the
As the paving machine distributes the "white" concrete, workers use pneumatic vibrators to remove trapped air pockets, then level and smooth the surface. |
It may seem odd to finish the highway approaches before the bridge is done, but working from the outside in allows crews to ensure that the bridge deck aligns perfectly with the roadway. Plus, the completed approaches give contractors accesses to areas of the project site that are critical as work progresses.
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