Download Bridging the Gap: Restoring and Rebuilding the Nation's by John Horsley, Executive Director PDF

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  • March 28, 2017
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By John Horsley, Executive Director

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Instead, Oklahoma DOT Director Gary Ridley recognized the urgency of restoring service, and used an incentive contract to get the bridge back in service just 65 days after it was struck and 47 days after construction began. S. ” Each of these examples demonstrates the critical role bridges play in daily commuting and commerce and the urgency of restoring failed or damaged structures. When put to the test, state departments of transportation and their contractors delivered. 26 Chapter 4 Photo courtesy of Pennsylvania Department of Transportation.

New technology includes electronic gauges to monitor the bridges in real time for stresses, strains, the “scouring” of water at their bases and for the weight of passing trucks. Kings Stormwater Channel Bridge on Route 86 in Riverside County is constructed of non-traditional and composite materials. edu. 43 The advancement of bridge building is a combination of caution and innovation. One good example is the Kings Stormwater Channel bridge on California State Route 86. The bridge on the highly traveled NAFTA truck corridor is innovative in that it uses carbon-fiber-reinforced epoxy tubes filled with concrete instead of traditional concrete and steel piers.

Each interchange relies on bridges to separate and elevate lanes of traffic. By looking only at repairing structural deficiencies or addressing current width insufficiencies, it would be easy to underestimate how much the nation needs to be investing. According to data from the FHWA, it would cost $140 billion in 2006 dollars to immediately repair every bridge that is deficient in the country. This estimate is based upon the amount of bridge area considered deficient as of December, 2007, multiplied by the cost per square meter for bridge replacement, estimated at $1,550 per square meter.

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