Remaking an entrance
Design Innovation
August 2008
By Allen Zeyher
Rehabilitated Washington, D.C., bridge now touches down in improved ballpark neighborhood
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Shorter On Trussed
Roads & Bridges
November 2006
By David Morrill and Kristin Schulz Contribing Authors
Illinois bridge shortened to accommodate
interchange safety improvements
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Good, Great, Wicked!
Roads & Bridges
November 2005
Tom Doe, P.E., and W. Jay Rohleder Jr. Contributing Authors
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Manufacturers may not make it
Roads & Bridges
June 2005
By William M. Wilkins
While Indiana’s roads and bridges still provide motorists with a high level of mobility, it is urgent that improvements be made now to accommodate future travel needs.
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Straightening a slouch
Roads & Bridges
April 2005
Information provided by Enerpac, Milwaukee.
Within 10 days of go-ahead, Enerpac delivered a system employing 24, 100-ton jacks.
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Feeling around for answers
Roads & Bridges
January 2005
Marc E. Christensen and James S. Baron, Contributing Authors
The use of a high-performance, rapid-setting, latex-modified concrete (RSLMC) overlay, supplied by the George L. Throop Co. of Pasadena, Calif., helped move the project ahead of schedule and under budget.
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Strong Current
Roads & Bridges
November 2004
Jared G. Fasick and Thomas G. Leech, P.E., S.E. Contributing Authors
Most commonly, you would relocate the existing truss bridge to a staging area where a uniform support condition could be provided; or, as in the case of the Stonycreek River Bridge, you could look for a solution of “tension retention.”
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Drilling inside a mouth
Roads & Bridges
November 2003
Larry Trojak, Contributing Author
The Golden Gate Bridge is undergoing a three-phase renovation to meet seismic requirements. That upgrade will allow it to retain its structural integrity through a quake measuring 8.3 on the Richter scale. For Drill Tech Drilling & Shoring Inc., Antioch, Calif., drilling subcontractor, that meant having to deal with low overhead clearances during its retrofit of the south approach--a challenge that was met through the use of a drilling unit made for just such situations.
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Resin due
Roads & Bridges
November 2003
Jack Scholz
Completed in 1936, New York City's Triborough is a mature bridge now undergoing a multi-year, multi-million dollar reconstruction project to ensure many more years of service. Specifications required the orthotropic panels to be sandblasted and then protected with a multicoat aggregate-filled polysulfide epoxy overlay riding surface.
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King Kong finds work
Roads & Bridges
October 2003
Rodney Garrett
The engineering firm Hardesty & Hanover LLP, headquartered in New York City, is heading the design and details of the bridge rehabilitation project for the NYCDOT. For building the new poured-in-place concrete piers, it was decided by Hardesty & Hanover that the drilled shaft method be used. One of the pieces is the APE King Kong model 400 hydraulically operated vibratory hammer with a patented clamping system used for large-diameter caissons. It is o
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Not just a pretty face-lift
Roads & Bridges
April 2003
Allen Zeyher
Koch Skanska Inc., Carteret, N.J., contracted with New York Cityn rehab the Manhattan Bridge. Koch's original contract for the north side of the bridge included stiffening the suspended spans; replacing the truss bearings on the approaches; removing all the lead-based paint and repainting; reconstructing the subway framing; reconstructing the upper roadway in the suspended spans; rehabing the approach spans, elevated structures and subway tunnels; and installing an intelligent transportation system.
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Stop chipping away
Roads & Bridges
November 2001
Richard Yach
Crews work to remove paint as part of a $25 million rehab bridge project in New Orleans
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