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Bridges

Welcome to the Bridges Channel, a special feature that provides the user an in-depth look at the bridge industry. This section offers several areas to explore: product spotlights, article archives, related case studies, related video and product/supplier contact list. The product spotlights contain information and photos of equipment relevant to the industry. The article library contains all stories related to bridges pulled from the rich archives of Roads & Bridges magazine.

News November 26, 2014
Kittery, Maine and Portsmouth, N.H. are about to become truly connected, following the announcement of a formal agreement between the Maine Department of Transportation (MaineDOT) and Cianbro Corporation (Pittsfield, Maine) to construct the new Sarah Mildred Long Bridge.   The precast segmental...
News November 21, 2014
In McCall, Idaho, the North Fork Payette River plays out into Payette Lake after miles upon miles of winding rapids and craggy passes. Above this outlet, the New Lardo Bridge, running off Idaho 55, which replaces the 83-year-old Lardo Bridge on the southwest shore of Payette Lake, is set to makes...
News November 19, 2014
Mining firms United Taconite and RGGS Land and Minerals announced recently that they have given notice to the Minnesota Department of Transportation (MnDOT) of their intent to terminate the easement rights to the portion of Hwy. 53 that is located between Hwy. 135 and 2nd Ave. in the town of...
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
When putting together a complicated 3-D puzzle, you really cannot build around a missing piece.   As FIGG and PCL Civil Constructors were attempting to mold together the first pier table of the I-91 Brattleboro Bridge in Vermont in late October, extreme measures were being taken to make sure...
Article November 13, 2014
Postal delivery workers aren’t the only ones who work year-round in all conditions.   The crews of Kiewit Infrastructure West working on the Northern Rail Extension Phase 1A to build a 3,300-ft-long bridge over the Tanana River in Salcha, Alaska, worked nonstop to complete the project by the...
Article November 13, 2014
When it came time to replace the Henry G. Gilmerton Bridge in the Hampton Roads region of Virginia in 2009, the project team had very strict parameters to work within. The span is one of five critical crossing points for the Elizabeth River in the region, resulting in major vehicle and boat traffic...
Article November 13, 2014
The North Torrey Pines Road Bridge, built in 1933, was classified as structurally and seismically deficient in 1990, receiving a sufficiency rating of only 19 out of 100. To extend the bridge and bring it up to current seismic standards, the design, engineering and construction teams had to contend...
Article November 13, 2014
Downtown Louisville is home to an intersection of three interstate systems, I-65, I-64 and I-71, and three corresponding bridges taxed to capacity. With a congested downtown area leading to frequent traffic delays and collisions, the city of Louisville knew that a new solution was necessary for...
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,...
Article November 11, 2014
The Freeport Bridge, also known as the Donald R. Lobaugh Bridge, carries S.R. 0356 over the Allegheny River approximately 25 miles northeast of Pittsburgh, Pa.   Built in 1965, the bridge is vital to commerce and serves as a route for tourists and outdoor enthusiasts utilizing the extensive nearby...
Article November 11, 2014
Paducah, Ky., has become home to a $95 million visually transparent, parallel-chord truss bridge over the Tennessee River.   The Kentucky Transportation Cabinet (KYTC) recently replaced an aging, structurally deficient span of U.S. 60 in western Kentucky with a three-span, continuous Warren-style...
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...
Case Studies November 10, 2014

MAT 75/125 Shoring System Supports I-495 Bridge

When the I-495 bridge in Wilmington, Del., was discovered to have severely leaning piers and was abruptly shut down to traffic, a remarkable team effort among the public, government agencies, and private construction companies and suppliers safely stabilized the bridge using Mabey Inc.’s structural...
News November 04, 2014
The dead of winter slowed the pulse of a few commutes around Toledo, Ohio, last year. Potholes were alive and well on I-75 bridges, creating unexpected lane closures to make necessary repairs.   Officials are taking a more preventive approach this time around, and on Nov. 4 crews started inspecting...
Case Studies November 04, 2014

 
 
The bridge, constructed by Lorvin Steel Ltd. and assembled at the Cherry Street docks, was transported from the docks to the installation location.

Toronto’s PATH network, the city’s downtown underground pedestrian walkway, previously had a southern end at the Air Canada Centre (ACC), a sports arena serving the Toronto Maple Leafs and the Toronto Raptors. PATH provides a link to more than 30 kilometers of shops, services and entertainment in a...
Videos October 29, 2014
Witness more than 42,000 hours of construction in 4 minutes with the official San Francisco-Oakland Bay Bridge time-lapse. EarthCam's HD construction cameras shot progress from 2008-13, archiving nearly 2 million images of the $6.4 billion bridge.
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