Neck sticks out
Roads & Bridges
December 2007
By Chris McMillan
New technologies place special tag on Throgs Neck Bridge
Inspector gadgets
Roads & Bridges
November 2007
By Seth Medwick, P.E., and Paul Kaufman, P.E.
Industry developments point to greater acceptance of new bridge inspection technology as owners strive to ensure the safety of their structures
Starting to Warm
Roads & Bridges
August 2005
Brian D. Prowell, P.E., and Graham C. Hurley Contributing Authors
Though there is still a lot to learn about warm mix, the technologies appear promising.
Still The Same Old Track
Roads & Bridges
June 2005
Bill Wilson Editor in Chief
With Gordon disabled, Wallace was able to coast to victory, but the history and character of the Martinsville Speedway was still in danger.
Get a grip
Roads & Bridges
June 2005
Allen Zeyher Managing Editor
Asphalt pavement designers usually have to choose between strength and durability. Racetracks lean toward strength, but that usually costs them in durability.
A guide to HPC
Roads & Bridges
May 2005
Lou Triandafilou, P.E.
The HPC Exchange features detailed results from a 2003-04 survey of HPC implementation nationwide. According to the survey, 77% of states have used HPC in low-permeability concrete for structures and 58% have used it in high-strength concrete.
The old with the New
Roads & Bridges
May 2005
Jo Sias Daniel
The purpose of this study was to examine the effect of RAP on the volumetric properties and stiffness of HMA.
Break it up
Roads & Bridges
May 2005
—Edited by Allen Zeyher and Stephanie Harris
Some individuals in Texas initially thought RCA would be a substandard material, but the Texas DOT learned that, with improved process control, RCA can be used in new concrete. The Texas DOT’s experience with production, construction and cost of RCA is related in the FHWA report.
What follows are brief descriptions of a few of the latest products for doing demolition work and recycling and reclaiming roads.
A “solid” education
Roads & Bridges
November 2004
John Austin, science educator at Discovery Place in Charlotte, N.C., uses magnetorheological (MR) fluid to help introduce basic engineering concepts to fourth-graders in the museum’s Technology for Young Engineers program.
Don't scare the fish
Roads & Bridges
May 2001
Kass Green
Remote sensing data helps Oregon map around salmon, trout
Building data bridges
Roads & Bridges
February 2001
Richard Geissler
Long before aggregate, cement and water are churned into roads, bridges and a myriad of other public works elements, concrete contractors already have spent millions of dollars on information.
PDF Version
ONLINE
Roads & Bridges
July 2000
Tim Gregorski
ONLINE
Roads & Bridges
May 2000
Tim Gregorski
Follow the line
Roads & Bridges
April 2000
Borys Schafran and Emil Kerschner
ONLINE
Roads & Bridges
March 2000
Tim Gregorski
Jordan Can’t Keep This From Happening
Roads & Bridges
October 1999
by Bill Wilson
Wasatch Constructors is taking advantage of the design-build process to stay on pace with bridge building, which includes the complex Jordan Section.
ONLINE
Roads & Bridges
November 1996
System to aid DOT's project managers
ONLINE
Roads & Bridges
October 1996
Top-secret film declassification creates need for new technology
Earthquake engineering isn't just for California any more
Roads & Bridges
August 1996
Paul Muccino, P.E.
With advanced 3-D computer analyses and modelling, the New York State Thruway Authority is bracing the landmark Tappan Zee Bridge for a seismic shock that hopefully will never come
ONLINE
Roads & Bridges
August 1996
John Chaney, CPA/MBA
LED technology lights the work-zone
Roads & Bridges
July 1996
David L. Evans
Improved light emitting diodes challenge incandescent lamps as the light source of choice for work-zone safety devices.
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