You are here

Article December 08, 2014
Florida continues to invest in its transportation system to ensure that the infrastructure can meet the needs of residents, visitors and businesses.   While Floridians and the nearly 100 million tourists that visit our state each year actually experience this infrastructure, others throughout the...
Case Studies December 05, 2014

Deck removal totalled more than 22,000 linear ft of cut reinforced concrete.

PANAMAX-sized ships are one of the ways goods from across the world are transported to consumers in the U.S. It is very important these container ships arrive safely into our ports. Unfortunately, the Bayonne Bridge roadway in Staten Island, N.Y. was not high enough to allow these massive ships to...
Article November 13, 2014
With more than 12,800 bridges comprising 100 million sq ft of deck area, Louisiana has a very unique and complex bridge system.   Our current inventory contains approximately 10% structurally deficient and 14% functionally obsolete bridges, many of which are off the state system. We rank first in...
Article November 13, 2014
Brian Mazzeo (left) and W. Spencer Guthrie have been working with noninvasive substances for bridge inspection methodology. Here they demonstrate the water droplet method for acoustic impact-echo data retrieval. The impact sounds are being picked up by the suspended microphone. A droplet of water can be seen in motion above Guthrie’s head.
Two professors at Brigham Young University have been pushing the burgeoning field of acoustic impact-echo testing for bridge damage inspections in interestingly “liquid” directions.   Bridge decay is not always, or even often, apparent to the naked eye. By the time a pothole appears, significant...
Article November 12, 2014
The huge shake tables rumbled and the 70-ft-long, 52-ton concrete bridge survived a series of intense simulated earthquakes in the first multiple-shake-table experiment at the University of Nevada, Reno’s new Earthquake Engineering Lab, the latest addition to the world-renowned earthquake/seismic...
Article November 12, 2014
The New York State Department of Transportation utilized the StopCrackEX system to repair a 1.25-in. crack in a floorbeam of the Delaware River Bridge in Margaretville, N.Y.
Forgive those in charge of maintaining the nation’s steel bridges for thinking the sky is falling—they’re just trying to take advantage of the newest technology that could save their charges.   That technology, StopCrackEX, is based on a technique known as cold expansion, which traces its origins...
Article November 12, 2014
The first year of permanent construction operations on the New York Thruway Authority’s New NY Bridge, which ended in October, saw exceptional progress on the foundations for the replacement of the 60-year-old Tappan Zee Bridge north of New York City.   In the coming weeks and months, however,...
News November 11, 2014
Lee Floyd wants his packages to be delivered to all the zip codes that make up South Carolina.   So when the South Carolina Department of Transportation (SCDOT) bridge engineer got ready to assemble his first group of ACT 98 bridge replacements—called “packages”—he made sure the coverage was as...
Videos October 09, 2014
A new span of the I-91 Brattleboro Bridge in Brattleboro, Vermont, replaces structurally deficient and functionally obsolete twin steel truss bridges that were built in 1958. 
Article October 07, 2014
With thousands of bridges, including 53 that cross the Mississippi and Missouri rivers, the Missouri Department of Transportation (MoDOT) will always need to invest in maintenance, repair and replacement of these critical pieces of the state’s transportation infrastructure.   Simply because of age...
News September 23, 2014
The Pennsylvania Department of Transportation (PennDOT) announced the launch of an ambitious public-private partnership (P3) campaign this week to replace 558 structurally deficient bridges across the state by 2018. Contracts will be awarded in October and the department plans to begin construction...
Article September 11, 2014
The California Department of Transportation (Caltrans) manages a complex network of highways and bridges traversing snowy mountain passes, coastal areas, urban centers and barren deserts.   The magnitude of this transportation system, diverse use characteristics and variable climatic regions make...
News September 08, 2014
The Vermont Agency of Transportation is thinking outside the box to reduce the number of structurally deficient bridges in the state, utilizing a longer-lasting design that can be built quicker than traditional methods.   When the bridge over the Wanzer Brook in Fairfield needed replacement last...
Article August 29, 2014

The Mulberry Street Bridge has undergone some major renovations in its 105-year existence, including replacement of the bridge deck in 1957 and replacement of the expansion joints at the piers in 1982.

When all is said and done, the Mulberry Street Bridge will look good as new—at 105 years old.   That’s how long the iconic, 18-span concrete arch structure has served Harrisburg, Pa., as the primary link between the Allison Hill neighborhood, the Harrisburg Transportation Center and downtown. And...
News August 25, 2014
The northbound lanes of I-495 through Wilmington were reopened to traffic over the weekend following the successful realignment of the I-495 Bridge spanning the Christina River, Delaware Secretary of Transportation Shailen Bhatt announced. The southbound lanes were reopened July 31. This means...
Article August 05, 2014
It all comes down to money—or lack of it.   State transportation CEOs from across the nation were in agreement on that point in Louisville, Ky., site of the 2014 American Association of State Highway & Transportation Officials (AASHTO) Spring Conference. The federal Highway Trust Fund is...
News July 09, 2014
The work to construct new underground foundations for the damaged portion of the I-495 bridge is nearing completion and the construction of the jacking towers that will be used to temporarily repair the I-495 bridge has begun. Building the jacking towers at this point in the project means the work...
News June 23, 2014

When SCDOT personnel arrived at the scene, they determined that the Cypress Gardens Road Bridge was damaged beyond repair.

Rumor has it a pickup driver was lucky—or unlucky, depending on your viewpoint—and made a brave jump across the gap that appeared just in front of his truck on the evening of Monday, April 28, as he was driving through Monck’s Corner, S.C.   Below the gap in the Cypress Gardens Road Bridge, a...
News June 09, 2014
Beginning Monday, June 16, the Port Authority of New York & New Jersey will close three upper-level lanes on the George Washington Bridge for 12 weeks during overnight hours, as construction workers resume work on the upper-level deck rehabilitation project, which began last summer. The lanes...
News June 06, 2014
Delaware’s transportation secretary, Shailen Bhatt, has ordered all major bridges in the state to be inspected, according to the Associated Press, to see if any of them might have a problem similar to the one found last week on the I-495 bridge over the Christina River northeast of Wilmington.  ...
Email Subscriptions