March 07 2016 Boone Bridge Demo.
View this complete post...Archive for the ‘Bridges’ Category
St. Louis, MO: Demolishing Boone Bridge
Wednesday, March 9th, 2016Arizona DOT: Replacing the Hell Canyon Bridge
Tuesday, March 1st, 2016
Hell Canyon Bridge on State Route 89 is located 18 miles north of Chino Valley and serves as a key connection linking Prescott and northern Arizona…ADOT is constructing a new four-span steel-plate girder bridge to the east of the existing bridge and removing the existing three-span steel deck truss bridge, which has been classified as structurally deficient by bridge inspectors.
View this complete post...ARTBA: Over 58,495 Structurally Deficient Bridges in the U.S. Are in Need of Repair
Monday, February 22nd, 2016
According to ARTBA, “There are nearly 204 million daily crossings on 58,495 U.S. structurally deficient bridges in need of repair.” The term structurally deficient refers to any bridge wherein “one or more of the key bridge elements, such as the deck, superstructure or substructure, is considered to be in ‘poor’ or worse condition.” The most-trafficked bridge on the list, in Los Angeles, CA, carries nearly 300,000 passengers each day.
View this complete post...Bremerton, WA: The Manette Bridge Documentary
Tuesday, February 2nd, 2016
By the summer of 2010 in Manette, Washington, the people of this quiet community by the water had learned that soon they would have to say goodbye to an old friend–a friend that had been with them for 80 years and had served their community year-in and year-out; a strong, faithful companion who, now ravaged by time and the elements, would be unable to continue. That friend was simply known as the Manette Bridge.
View this complete post...Report Card for D.C.’s Infrastructure
Monday, January 18th, 2016
AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)
NATIONAL CAPITAL SECTION
The District of Columbia has 265 bridge structures; 226 of the bridges are owned by the D.C. Department of Transportation (DDOT) and the remaining 39 are owned by the National Park Service (NPS). The average age of a bridge in D.C. is 58 years, and 80% of the bridges will need to be replaced or rehabilitated in the next 10 years. However, the District made significant strides to reduce the number of structurally deficient bridges from 8% to 3% in just three years. Despite this progress, more than 220,000 trips are taken over a structurally deficient bridge every day and a quarter of bridges have at least one major component in fair condition.
Report Card for Alabama’s Infrastructure
Tuesday, December 29th, 2015
AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)
ALABAMA SECTION
The bad news is that Alabama’s infrastructure has some challenges that you should know about before it’s too late to keep these systems from breaking down. Infrastructure deteriorates every single day as it ages, just as our bodies do, and many of these critical systems are reaching the end of their useful life…The good news is there are solutions to all these challenges , and we can raise Alabama’s infrastructure grades. By learning more today about the conditions of the infrastructure you use every day, you too can help raise the grade.
Virginia DOT: Rope Access Bridge Inspection
Thursday, December 17th, 2015
Derrick Keltner, a structural engineer in VDOT’s Hampton Roads District, inspects the High Rise Bridge in Chesapeake.
View this complete post...Transportation Infrastructure: Information on Bridge Conditions
Thursday, December 3rd, 2015
UNITED STATES GOVERNMENT ACCOUNTABILITY OFFICE
In summary, based on 2014 NBI data, the nation has 610,749 bridges. Of those bridges, 23 percent are on the NHS, and this 23 percent comprise 58 percent of the nation’s total deck area. Nearly 25 percent of all bridges are deficient, with 10 percent categorized as structurally deficient and 14 percent categorized as functionally obsolete. Of bridges on the NHS, 4 percent are categorized as structurally deficient while 17 percent are categorized as functionally obsolete. State agencies own about half of all bridges and over 90 percent of NHS bridges.
Michigan DOT: M-100 Bridge Slide Time Lapse
Wednesday, November 25th, 2015
In the early morning hours of Saturday, Nov. 14, MDOT performed a bridge slide on the new M-100 bridge over the Canadian National (CN) Railroad in Potterville. A bridge slide is an innovative construction project that allows traffic to be maintained throughout the project. The new bridge is built alongside the old one, and once complete, the old bridge is demolished and the new bridge is slid over in its place.
View this complete post...Tunnel Trouble: Crumbling Infrastructure Is Putting the NYC Metro Region at Risk
Tuesday, November 10th, 2015
The tri-state area is loaded with bridges, rail systems and roadways that are suffering from years of under-investment. But perhaps the biggest risk we face is with the rail tunnel linking New Jersey and New York. Built more than a century ago, the fraying tubes that carry NJ Transit and Amtrak trains are the biggest chokepoint in the Northeast, and the source of frequent delays for commuters. For years, the tunnels have needed extended repairs that are impossible to do while keeping trains running. The situation deteriorated when the tunnels flooded with salt water during Hurricane Sandy. Amtrak officials say the tubes might not last 20 years.
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