Acrow ´s Temporary Truss System Maintains Traffic Flow During Rehab of Historically Significant Bridge Because the 68-year-old George E. Tryon Bridge spans environmentally sensitive gorge on the south fork of the Smith River in Northern California, project posed challenging siting issues, including endangered wildlife species The rehabilitation project involves replacing the existing 206 ´ x 24 ´ steel arch bridge with an aesthetically similar concrete arch span 231 ´ x 32 ´4 ?. The additional width will eliminate one-lane sections of the roadway and allow room for bicycles and pedestrians along with significant tourist traffic. With initial bids were over budget, Acrow collaborated with Flatiron Construction who, acting as the CM/GC, value engineered a hanging formwork truss br

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