Docking air ships   Roads & Bridges July 2008   By Ted Bush, P.E., S.E.; Kent Bormann, P.E., S.E.; Rob Turton, P.E., S.E.
Designers rise to the challenge of the Sky Harbor taxiway

Four deep   Roads & Bridges June 2008   By Dr. Kevin MacDonald
Cement mixes give I-35W a stable design

Their "Q" to innovate   Roads & Bridges June 2008   By James A. Platosh, P.E.
Extradosed bridge design one of a kind on I-95 project

Weight watcher   Roads & Bridges May 2008   By Danielle D. Kleinhans, PH.D., P.E.
Monitoring system on Huey P. Long Bridge will track load transfer

Element Education   Roads & Bridges May 2008   By Dr. Toader A. Balan, Peter Vanderzee and Frank Wingate, P.E.
Going above and beyond the task of monitoring bridges

One side of the story   Roads & Bridges May 2008   By Lou Dzierzak
Troubled bridge project gets back on track after long layoff

All hands on decks, piers, etc.   Roads & Bridges May 2008   By Allen Zeyher
Tennessee mounts impressive record of inspecting bridges on time

Issue for integrity   Roads & Bridges May 2008   By Brad Christensen and Joseph Phillips
Bridge collapse in Arizona is averted thanks to the right equipment

Strong side of the tracks   Roads & Bridges May 2008   By Arthur Schurr
Designers combat complex challenges of railroad, freeway for history-making bridge

Liquid courage   Roads & Bridges February 2008   By Lou Dzierzak
As the manufacturer of I-35W system stands up to accusations linked to collapse, Mn/DOT increases anti-icing usage
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All those opposed   Roads & Bridges December 2007   By Bill Wilson
Majority of Roads & Bridges readers are not satisfied with leadership in Washington, D.C.

Neck sticks out   Roads & Bridges December 2007   By Chris McMillan
New technologies place special tag on Throgs Neck Bridge

The mulligan that counts   Roads & Bridges December 2007   By Brian Ranck
Pennsylvania Turnpike takes a second shot at Allegheny River crossing

Doctor’s orders   Roads & Bridges November 2007   By Bart Gordon
Committee chairman: Bridges need high-tech checkups

A troubled bridge over water   Roads & Bridges November 2007   By Dan McNichol
After I-35W disaster, Minnesota and the U.S. try to sort out problems with their bridge systems

Leading them to water   Roads & Bridges November 2007   By Bill Wilson
New bridge carrying I-35W will offer more to the community

Boon or Boondoggle?   Roads & Bridges November 2007   By Peter J. Venderzee
FHWA’s Long Term Bridge Performance program has the makings of a champion

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

Fail-Safe?   Roads & Bridges November 2007   By Lou Dzierzak
Minnesota rushes to the aid of other bridges to reassure public after collapse of I-35W

Tech logical   Roads & Bridges October 2007   By Donald P. Fusilli Jr., P.E., J.D.
Innovation and infrastructure must learn to coexist

Total collapse   Roads & Bridges September 2007   By Bill Wilson
Many are to blame for the I-35W tragedy

Arches have no rivals   Roads & Bridges September 2007   By Wayne F. Lorenz, P.E., and Phillip J. Wolfram
Unique Roman bridges offer clues as to how it was done centuries ago

Fumigating Bridges   Roads & Bridges February 2007   By Tarif Jaber, P.E.
Western states take on advances in silica fume for high-performance bridge construction

Tip Top Shape   Roads & Bridges May 2006   By Michael J. Abrahams, Tim Ingham, John Bryson, Joe Wang, Julius Chang, Barry Silberfarb and Todor
Seismic study and marathon analysis assures Verrazano-Narrows’ condition

INNOVATIONS IN TECHNOLOGY   Roads & Bridges February 2006   By Bob Templeton
Bridge project preserves greenbelt, wins award

History in the remaking   Infrastrucure Security 2005 October 2005   Sherif Morcos, Ph.D, P.E.
Seismic analysis and retrofit of historic arch bridges involves a thorough understanding of their structural behavior.

Seismic Bridges   Roads & Bridges May 2005   Arthur Schurr, Contributing Author
California installs an aggressive seismic retrofit effort

Polymer Concrete Wearing Surface System for Orthotropic Steel Deck Bridge   Roads & Bridges May 2005   Vellore S. Gopalaratnam and Arthur M. Dinitz

State’s decision is rock-solid   Roads & Bridges May 2005   By Cordell Parvin
The appellate court reversed and granted NCDOT’s motion to dismiss on grounds that Jones failed to follow required statutory procedures to file a complaint against NCDOT.

After Glow   Roads & Bridges April 2005   Wm. Christopher Cline, ASLA, Contributing Author
Dressed up with more than 180 new decorative lights, the parallel structures now shine as a symbol of the community’s unity, connectivity and vibrant future.

Shining through   Roads & Bridges November 2004   Corrina Stellitano, Contributing Author
“There had been a bridge inspection just two months earlier and this crack was not discovered.”

Covered in latex   Roads & Bridges October 2004   Peter A. Doty, Contributing Author
Bridge shutdowns are very disruptive due to limited routing alternatives.

All Decked Out   Roads & Bridges September 2004
The Al Zampa Memorial (New Carquinez) Bridge is the first major suspension bridge to be built in the U.S. for nearly 40 years.

Plastics charge   Roads & Bridges August 2004   John E. Shea and Lew Koflowitz, Contributing Authors
It is because of FRP’s light weight, durability and resistance to fatigue, stress and corrosion that it is receiving increased scrutiny from the marketplace.

Bridges With More   Roads & Bridges August 2004   Peter C. Taylor, Ph.D., P.E., and Shrinivas B. Bhide, Ph.D., P.E., S.E Contributing Authors
To make it easier for specifiers to use HPC for bridges, the Portland Cement Association has worked with CTLGroup to develop a Guide Specification for High Performance Concrete for Bridge Elements.

Innovation acceleration   Roads & Bridges August 2004   By Dan Sanayi
Recommendations for meeting goals included such innovations as using self-consolidating concrete, particularly for the construction of the bridge’s pontoons.

Brooklyn's Memorable Season   Roads & Bridges July 2004   By Al Walter, Contributing Author
The new Belt Parkway Bridge over Ocean Parkway in that heavily traveled part of the borough is to be completed in record time—290 consecutive days, starting March 1 of this year.

Everybody wants in-and out   Roads & Bridges May 2004   Bill Wilson, Editor
Faced with the constricted problem of congestion on the four-lane Lee Roy Selmon Expressway, then-Mayor Dick Greco knew the walls were closing in at a fast rate.

Trembling dice   Roads & Bridges May 2004   Allen Zeyher, Associate Editor
REDARS (for Risks from Earthquake DAmage to Roadway Systems) is software being designed to offer seismic risk analysis.

Suspending the "Big One"   Roads & Bridges May 2004   Semyon Treyger, P.E., S.E., Michael H. Jones, P.E., S.E., and Greg Orsolini, P.E., S.E.
The “big one” could be capable of releasing as much as 16 times more energy than a major earthquake on the San Andreas Fault.

Blue Shield   Roads & Bridges May 2004   Information provided by Pitchmastic PmB Ltd., Sheffield, U.K.
The U.K. Highways Agency recognized the importance of waterproofing back in the 1960s and since then it has been mandatory to waterproof all bridge structures in England, Ireland, Scotland and Wales.

Building a durable bridge   Roads & Bridges May 2004   By Benjamin Tang
With recent concerns about a shortage of steel supplies, FRP composite rod manufacturers are stepping up their production in anticipation of increasing demand.

Hitting Cold Bottom   Roads & Bridges March 2004   Vicki Stewart, Contributing Author
Countless overpasses built during the interstate-building boom of the 1950s and 1960s are now requiring rebuilding as they succumb to cracking and corrosion. Maryland officials would like to see 35-year bridge decks go the way of tailfins and tune-ups.

Lasting line of defense   Roads & Bridges March 2004   William Earley, Contributing Author
High-performance prepackaged grouts have been formulated that offer state-of-the-art protection for stressed and steel tendons, as well as many other desirable qualities.

An Eye Score   Roads & Bridges February 2004   Mike Abrahams and Paul Lutkevich
The new induction (electrodeless) and light-emitting diode (LED) technologies are effective alternatives for lighting effects. Unlike conventional fluorescent technology, high-frequency, non-strike induction technology is less destructive to the lamp.

A commitment to quality   Roads & Bridges January 2004   Dennis Merida
For the New Jersey Department of Transportation (NJDOT), replacing a deteriorated drawbridge built in 1922 resulted not only in a gleaming new structure, but in a project distinguished by innovative design features and a commitment to quality. This commitment was honored with the National Partnership for Highway Quality's (NPHQ) 2003 National Achievement Award.

Next performance   Roads & Bridges January 2004   Jennifer G. Prokopy
During the past 10 years, the design and use of high-performance concrete (HPC) has become more common, with hundreds of structures created using the material. HPC makes it possible to create longer components for the bridges, reducing the number of piers in water and adjacent to roadways, resulting in lower foundation costs and improved safety. It reduces the number of expansion joints and bearings and the subsequent need for repair and replacement.

Glued-together beauty   Roads & Bridges December 2003
Today, timber bridges are enjoying a resurgence because they offer special benefits to designers and owners. They are considered environmentally friendly because timber is our only renewable resource. In addition, the increased strength of today’s modern glued laminated timbers helps to achieve longer spans and carry heavier loads than conventional timber bridges in the past.

Improving safety and service life   Roads & Bridges November 2003   Krishna Verma, P.E.
Achieving safer, longer life steel bridges and other structures is now a reality with the advanced technology of Ultrasonic Impact Treatment (UIT). The use of UIT can allow structural design engineers to employ fatigue-prone details that they would otherwise not be able to use.

An open and shut case   Roads & Bridges November 2003   Marc Start, P.E., Robert Clegg, P.E., Contributing Authors
The Port Huron, Michigan, staff recognized the challenges of traffic control with the bascule bridges, and successfully submitted an application for Congestion Mitigation and Air Quality (CMAQ) funding of a traffic signal modernization and interconnect project. The goals of the project are to reduce traffic congestion related to the bridge events and to reduce city emergency service response times.

Star treatment for a mouse   Roads & Bridges November 2003
The design and construction of the 560-ft bridge taking Fifth Street over I-25 and Plum Creek in Castle Rock, Colo., came up against severe environmental constraints. Plum Creek is the habitat of the Preble's Meadow Jumping Mouse, which is a threatened species protected since 1998 by the Endangered Species Act. Among other things, this act makes it unlawful to significantly modify the habitat in a way that would disrupt normal behavior patterns of the mouse.

Both sides are talking   Roads & Bridges November 2003   Russ Fuhrman, Contributing Author
Entering its fourth year of construction, the Woodrow Wilson Bridge project is the third-largest of its kind in the nation. But unlike some megaprojects, this financial house is in good order, with 22 of 27 contracts thus far having come in under estimate.

Diamonds from the S.C. clay   Roads & Bridges November 2003   Michael Abrahams, John Bryson, Peter Wahl and Stoyan Stoyanoff
A replacement of the Cooper River bridges is currently under construction and when completed will be the longest cable-stayed bridge in North America, surpassing the 930-m-long Alex Frasier Bridge in Vancouver, British Columbia.

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.

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.

Fit to be tied   Roads & Bridges November 2003   Patrick Cassity, P.E., S.E., Kenneth Serzan, P.E., and Norman McDonald, P.E.
Very few long-span tied-arch bridges have been built recently in the U.S. due to concerns regarding redundancy of the structural system and the fact that cable-stayed systems are typically more economical. However, tied-arch systems can be developed to ensure sufficient redundancy and improve cost competitiveness. One such example is the new U.S. 20 bridge.

Top 10 Bridges   Roads & Bridges November 2003   Bill Wilson
ROADS & BRIDGES' top span designed to hold up in the worst disaster

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

Blasting is no way out   Roads & Bridges September 2003   Craig Ballinger, P.E., and Wayne Senick, Contributing Authors
By using high-pressure water cleaning and selective UHP water jetting followed by an overcoat system supplied by Termarust Technologies, the owner was able to substantially reduce the cost of cleaning and coating the historic Quebec Bridge.

Soaring on the feet of an elephant   Roads & Bridges August 2003   Allen Zeyher
The Engineers' Society of Western Pennsylvania, in association with Roads & Bridges, awarded the Eugene C. Figg Jr. Medal to Buckland & Taylor Ltd., North Vancouver, British Columbia, for the company's work on the Rama VIII Bridge, crossing the Chao Phraya River in Bangkok, Thailand.

Ready for the any day event: FHWA Bridge Plan Part III   Roads & Bridges August 2003   Sheila Rimal Duwadi, P.E., Contributing Author
To meet the demand for a 21st century transportation network, FHWA is proposing a comprehensive program of bridge research and technology (R&T). This third and final article on the proposed R&T program presents a strategy for dealing with bridge failures due to catastrophic events, both natural and man-made. Addressing these rare and unusual events is the focus of FHWA's initiative to ensure the "Safety, Reliability, and Security" of U.S. bridges.

A master of many   Roads & Bridges August 2003   Bill Wilson, Editor
On June 9, 2003, the International Bridge Conference Awards Committee placed Hiroyuki Fujikawa among the bridge engineering giants of the last two centuries by honoring him with the John A. Roebling Medal for lifetime achievement, which is sponsored by Roads & Bridges and the Engineers' Society of Western Pennsylvania.

Readiness to the Rescue   Roads & Bridges July 2003   Emmett McGregor, Contributing Author
There is a real need for a rescue plan any time a worker is exposed to the risk of a fall. The equipment and gear must be used in the right manner. Harnesses, lanyards, lifelines and all the associated components of a fall arrest system need to be properly worn and correctly attached in order to effectively save a life, as they're designed to do. That said, there might still be times when a worker experiences a fall. What happens then?

The bridge of the future: FHWA Bridge Plan Part II   Roads & Bridges July 2003   Steven B. Chase, Contributing Author
In the first article in this three-part series, John Hooks introduced the concept of Bridges for the 21st Century, a comprehensive research and technology (R&T) program proposed by Federal Highway Administration (FHWA) to identify and deploy cutting-edge solutions to strengthen the bridge infrastructure. Intent on getting ahead of the bridge deterioration curve, FHWA has outlined an R&T strategy to develop the Bridge of the Future, a new generation of cost-effective, high-performance and low-maintenance bridges.

Holding it together: FHWA Bridge Plan Part I   Roads & Bridges June 2003   John M. Hooks, Contributing Author
The first in a three-part series, this article describes the Federal Highway Administration's (FHWA) proposed strategy for inventorying and preserving the current stock of bridges in the U.S.for inventorying and preserving the current stock of bridges in the U.S.

Driving on blades   Roads & Bridges May 2003   Shant S. Kashyap, P.E., F. ASCE, Contributing Author
the Rt. 895 Connector, now known as the Pocahontas Parkway, in Richmond, Va., was the first project to be initiated and completed under the Public Private Transportation Act, passed by the Virginia Legislature in 1995. The 8.8-mile-long highway has several new bridges, the most significant of which is the 4,765-ft-long James River Bridge. Several features were incorporated into the design of the James River Bridge to mitigate the impact of seismic forces.

The perfect dare   Roads & Bridges May 2003   Randy Midgett, P.E., and Don Barber, P.E., Contributing Authors
As part of the North Carolina Department of Transportation?s (NCDOT) overall highway improvement program, the $90 million Dare Bridge was built without adverse impact on the sensitive Outer Banks wetlands. It will ensure efficient and safe east-west passage for Dare County residents and visitors to the Outer Banks region. And it will be a key evacuation route off beaches and out of the county during hurricane season.

Lightweight Challenges Heavyweight   Roads & Bridges May 2003   Paul Hohensee, Contributing Author
Steel reigned supreme as the basic material of jack construction until about a decade ago, when aluminum cylinders appeared on the scene. Jacks have followed the same pattern as beverage cans and cars. First, aluminum was introduced as a replacement for steel. After that, attention was devoted to reducing bulk and cutting more weight. Computerized design, finite element analysis and modern alloys have made quite a difference.

A Patch for Jacket Weather   Roads & Bridges May 2003
A novel cementing solution is needed to address the specific problems related to cold climate applications. During the last 10 years, Argonne National Laboratory, Argonne, Ill., has been developing Ceramicrete, a phosphate-based cement that may provide a solution to these cold climate problems. This cement was originally developed for encapsulating nuclear waste, and now is becoming a sensible option for DOTs across the midwest and northern U.S.

Time to Wrap   Roads & Bridges May 2003   David White, P.E., and Scott Isaac, Contributing Authors
Twenty-five deteriorated bridges along a 5-mile corridor of I-80 in Salt Lake City were in need of major repair. None of the bridges met current seismic design standards. Ultimately, it was decided to use simple, low-cost techniques, including carbon fiber reinforced polymer (CFRP) fabrics and other structural repairs that could reduce the severity of damage from an earthquake.

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.

High-visibility hope   Roads & Bridges March 2003   Skip Pendry, Contributing Author
When it was built in 1932, Cleveland's art deco-style Hope Memorial Bridge was hailed as one of the most beautiful bridges constructed that year. Since its last rehabilitation in the early 1980s, sections of the 3,285-ft-long bridge had deteriorated significantly. A key objective of the current rehabilitation project was to restore the bridge's appearance and preserve its beauty as an integral part of the cityscape--which would require stripping 1.8 million sq ft of steel to the bare metal and painting it with a three-coat system. A & L Painting LLC, Cleveland, was charged with this job.

Choice of dip: HUGE   Roads & Bridges March 2003
The world's largest galvanizing kettle recently hot-dipped the heaviest single item ever in North America--and maybe even the world.

Untangling the Triangle   Roads & Bridges February 2003   Bill Wilson, Editor
The Grandview Triangle Interchange, where I-435, I-470 and Highway 71 meet in a tangled mess, is perhaps the most outdated of its kind. Containing three merging freeways and as many as 64 movements, the thoroughfare is struggling to move its daily numbers, which could reach as high as a quarter of a million in 10 years. The Missouri Department of Transportation recently decided to give the Triangle a shapelier figure, but there was little room to expand the waistline.

Bridge Jewelry   Roads & Bridges February 2003   William J. Moreau, P.E., and Nagarajan Ramanan, P.E., Contributing Authors
With strong support from Executive Director Jack Gaffney, New York State Bridge Authority (NYSBA) issued a request for proposals to develop a lighting scheme that would set the Mid-Hudson Bridge apart--and not cost too much to construct, light up or maintain. NYSBA selected Baker Engineering NY Inc., a unit of Michael Baker Corp., to facilitate the project.

Rising to Pieces   Roads & Bridges February 2003   Bill Wilson
When the day comes when we are buzzing around in high-tech automobiles, speed of construction will be a far heavier weight than the one contractors are handling now. What better way to address that problem than using precast concrete slabs to create new highways and rehab old ones? The process has been used sparingly across the country, and all the cases fell in the category of concrete repair. Crews would cut out a damage section and replace with a new precast slab.

Top Wood Finish   Roads & Bridges December 2002
National Timber Bridge Awards were presented to 15 outstanding bridges located across the nation. Many of the bridges which received awards in the recent National Timber Bridge Award competition were specifically designed to enhance and protect the delicate environments where they span creeks, rivers, waterways and wetlands.

A bridge on the rocks   Roads & Bridges November 2002   Zachary Winson, Contributing Author
Taking advantage of its "On Call" Phase II --Seismic Retrofit Bridge Engineering contract, the California Department of Transportation (Caltrans) called on DMJM+Harris to examine the bridge over Rock Creek in Mendocino County and devise a seismic retrofit solution. After looking at it, however, DMJM+Harris implemented a completely different approach.

Operation: Increased Capacity   Roads & Bridges November 2002   Christopher J. Mills and Alexander Collins, Contributing Authors
The new Hathaway Bridge replacement was let by Florida Department of Transportation using the design-build format. The Hathaway Bridge design-build team consists of Granite Construction Co. and HNTB Corp. and several other design and construction firms. The project consists of twin, 80-ft-wide, segmental concrete box girder bridges with seven spans of 330 ft and shorter approach spans.

Top 10 Roads   Roads & Bridges November 2002
For the second consecutive year, ROADS & BRIDGES presents its Top 10 road and bridge projects in the U.S. The editorial staff received a number of submissions, and judged each piece on several factors including size, contractor challenges and motorist impact. All jobs have either been designed or completed in the last 18 months.
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Top 10 Bridges   Roads & Bridges November 2002
Pull over, take a picture. For the second consecutive year, ROADS & BRIDGES presents its Top 10 road and bridge projects in the U.S. The editorial staff received a number of submissions, and judged each piece on several factors including size, contractor challenges and motorist impact. All jobs have either been designed or completed in the last 18 months.
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Drive-through art gallery   Roads & Bridges September 2002   Allen Zeyher
The cool new way to get to the beaches of Daytona is across the Broadway Bridge. In fact, the route has been requested by the children of several local dignitaries who spoke at the dedication of the new bridge. The children want to see the mosaics of wildlife that adorn the pedestrian walkway along the 3,008-ft length of the dual segmental concrete structure.

Pretty in Zinc   Roads & Bridges September 2002   Andrew Gamble
Corrosion of rebar has proven to be one of the leading causes of premature failure of concrete structures. Moisture wicks its way into just about anything, and concrete is no different. Galvanized rebar is an economical and effective way to eliminate this problem.

Keep it moving   Roads & Bridges August 2002   Allen Zeyher
Reconstruction of the Lions' Gate Suspension Bridge in Vancouver, British Columbia, was the first time the entire deck of a suspension bridge, plus suspenders, sidewalks and stiffening trusses, was replaced while the bridge was kept open to traffic. The only components of the original structure that remain are the towers, the main suspension cables and the main cable anchorages.

Serious pier pressure   Roads & Bridges July 2002   Bill Wilson, Editor bwilson@sgcmail.comEditor
Every single pier should have some type of shield. This should have been a law from day one. Why? Because you never know when the worst will strike and innocent people perish.

Checking crystal bridges   Roads & Bridges July 2002
New York’s Steuben County Department of Public Works relies on Autodesk Land Desktop and its companion products, Survey and Civil Design. With labor-saving engineering and design tools that are easy to learn, the department’s small staff is able to handle projects that it might otherwise hire out to contractors.

The home stretch at last!   Roads & Bridges June 2002   Allen Zeyher
Bostonians celebrated Mother’s Day by taking a close look at the new Leonard P. Zakim Bunker Hill Bridge over the Charles River. At the other end of the $14.6 billion Central Artery/Tunnel Project (a.k.a. the “Big Dig”) that snakes under the heart of Boston, Slattery Skanska Inc. was putting the finishing touches on the tunnels at the interchange of I-93 and I-90.

Texas Five-Pointed Star   Roads & Bridges June 2002   Bill Wilson
The Texas Department of Transportation (TxDOT) is trying to accomplish approval victory on a grand scale with the construction of the Dallas High Five interchange—which will sit in an area that attracts a bewildering 500,000 vehicles daily. Two major highways, U.S. 75 (North Central Expressway) and I-635 (LBJ Freeway), are the two main carriers, and effective traffic management during the creation of Dallas’ first five-level road structure has been the top promise since day one.

Making Earthquakes Tremble   Roads & Bridges May 2002   Ravi Mathur, P.E., Greg Orsolini, P.E., Mark A. Ketchum, P.E., Tom Spoth, P.E.
In 2004, the Carquinez Bridge, with a main span of 2,388 ft, will be ready for action. It will be the first orthotropic steel box girder suspension bridge ever built in the country. Carquinez Bridge is the first bridge in the U.S., located in a potentially high seismic risk area, to be designed to present-day stringent seismic design standards.

Willing to bend   Roads & Bridges May 2002
The Oregon Department of Transportation (ODOT), using highly alloyed stainless steel reinforcing bar in its concrete structures, is building a bridge in North Bend, Ore., that is expected to provide maintenance-free service for an amazing 120 years—nearly double the service life of the bridge it is replacing.

A different design   Roads & Bridges May 2002   Toorak Zokaie, P.E., Ph.D
The American Association of State Highway & Transportation Officials (AASHTO) LRFD specifications have been accepted by several states as the design specification of choice since their adoption in 1994. However, the experience with the LRFD specifications for the design of cast-in-place (C.I.P.) post-tensioned concrete box girder bridges is limited. Several major changes have been made to the LRFD design specifications that have a direct effect on the design and safety of these bridges and have imposed a new set of design tasks to be performed. New automated design tools are needed to assist bridge engineers and facilitate the transition to the LRFD specifications.

A quick survey   Roads & Bridges April 2002   Tom Service
Using Cyrax scanning technology, David Evans and Associates Inc. (DEA), Denver, surveyed 24 bridges in 40 days without disrupting traffic on the heavily traveled I-25 through the Denver metropolitan area. T-REX, the Transportation Expansion Project launched by the Colorado Department of Transportation (CDOT), includes highway expansions, improvements and the addition of light rail along 18 miles of I-25 and I-225. The $1.67 billion design-build project includes reconstruction of interchanges and bridges, a new drainage system and improved pedestrian and bicycle access.

Jigsaw bridge puzzle   Roads & Bridges March 2002   Jeffrey S. Mehle, P.E.
When the Virginia Department of Transportation needed to replace the mainline structure of the I-95 James River Bridge, they knew it had to happen without affecting rush-hour traffic through the middle of downtown Richmond. Joining forces with the Virginia DOT and Archer-Western Contractors Ltd., Fort Lauderdale, Fla., Parsons Bridge and Tunnel Division developed constructibility modifications for the project. For Parsons, the key to making the process work better was match-casting.

SPANNING THE NEWS   Roads & Bridges February 2002   Bill Wilson
FRP composite bridge technology makes a statement with span over Dicky Creek

Apple Spraying   Roads & Bridges January 2002
Recent polls have indicated that the New York metropolitan area now ranks 16th in potholes/related-car-repair-costs out of the 50 largest metropolitan areas. According to Patrick Parisi, director of fleet operations for MTA Bridges & Tunnels, the quick and effective characteristics of spray injection pothole patching have proven valuable.

BRIDGES 2002   Roads & Bridges January 2002   Allen Zeyher
SCDOT breaks ground on biggest project in its history

TRANSPORTATION SECURITY   Roads & Bridges December 2001   Bill Wilson
The threat of using vehicles for terrorism has the transportation inductry on edge.

The spirit of bridge building   Roads & Bridges November 2001   Bill Wilson
St. Louis has plans for the widest cable-stayed span in the world

Blazing a trail   Roads & Bridges November 2001   Allen Zeyher
Design-build writes new signature for Milwaukee when replacing a deteriorating viaduct.

Working for keeps   Roads & Bridges November 2001   Allen G. Davis
To save or not to save is often the question facing owners of historic reinforced concrete bridges built in the first half of the 20th century. For decades, most have been subjected to much heavier traffic than their original designers ever imagined, not to mention the wear and tear of weather and deicing salts.

FHWA invests in high-tech bridges   Roads & Bridges November 2001   John M. Hooks
FHWA program looks to use innovative materials to improve service life and reduce service cost for bridges.

Watching paint dry   Roads & Bridges November 2001   Barry Couts
Why bother to pay for certified independent inspection of bridge painting projects when the contractor offers to provide inspectors at no additional charge?

Riding the pine   Roads & Bridges November 2001
New Hampshire constructs vehicular timber bridge outside of national forest

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

BRIDGES 2001   Roads & Bridges November 2001   Tim Gregorski
Wisconsin DOT reopens bridge

Reviving a Landmark   Roads & Bridges October 2001   Allen Zeyher
Post-tensioning and high-performance concrete renew a 75-year-old structure

Building a European region   Roads & Bridges August 2001   Allen Zeyher
Bridge links Denmark and Sweden across the Øresund

Nothing earth-shattering   Roads & Bridges August 2001   Bill Wilson
It's no surprise Jim Roberts, a decorated Bay area bridge engineer, is this year's Roebling Medal recipient

Know what you're digging into   Roads & Bridges August 2001   Steve Wendland, P.E.
Geotechnical subsurface analysis for bridge projects could help prevent future disasters

Cross that bridge in June   Roads & Bridges May 2001   Bill Wilson
IBC in Pittsburgh looks back at the 20th century, moves forward into the 21st
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Mover's insurance   Roads & Bridges April 2001   Debbie Steiger

BRIDGES 2001   Roads & Bridges April 2001   Tim Gregorski
Bridge No. B-0171 on Five Mile Road in Hamilton County, Ohio, became the first bridge in the nation to receive an advanced fiber-reinforced polymer (FRP) composite deck on pre-cast concrete beams.
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INNOVATIONS IN TECHNOLOGY   Roads & Bridges March 2001   John Hooks

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.
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BRIDGES 2001   Roads & Bridges February 2001   Tim Gregorski
Back in the 1950s, the Louisiana parishes of St. Tammany and Jefferson voted to construct a 24-mile-long, two-lane bridge across Lake Pontchartrain, connecting the city of New Orleans directly to the Louisiana rural lands to the north.
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Centerpiece rising   Roads & Bridges December 2000   Allen Zeyher
The cable-stayed bridge over the Charles River will form a gateway to Boston's downtown.
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Great expectations   Roads & Bridges December 2000   Tim Gregorski
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Grafting a new artery   Roads & Bridges November 2000   Allen Zeyher
California plans to rebuild the San Francisco-Oakland Bay Bridge to take it into its second century

Two of a different kind   Roads & Bridges November 2000   Bill Wilson
Kentucky's unique cable-stayed bridges create a positive learning experience

Drilled into their head   Roads & Bridges November 2000   Sybil E. Hatch, P.E.
Years of research has convinced state DOTs of the benefits of drilled shafts

Showing fancy foot work   Roads & Bridges November 2000   William Herndon
Impressive, precise maneuvers used to strengthen Golden Gate Bridge foundation

Fighting off bottom feeders   Roads & Bridges November 2000   Michael J. Ganas, P.E.
Three tests could help detect underwater bridge deterioration

BRIDGES 2000   Roads & Bridges November 2000   Tim Gregorski
It took a few years to perfect the process, but building pedestrian timber bridges will be easier now with the introduction of new national standards that allow designers to plug in numbers and obtain reliable and structurally sound results—saving time and money while lessening the inconvenience to the public.

A brush with greatness   Roads & Bridges August 2000   Bill Wilson

Pick up the phone and call   Roads & Bridges August 2000   Bill Wilson

Zip through it easily   Roads & Bridges August 2000   Raymond A. Hartle, P.E.

Gateway to suburbia   Roads & Bridges July 2000   Kelly Foley and Noel Dolotallas

Happy bridge building   Roads & Bridges June 2000   Wayne A. Endicott
Test pilots speak of "pushing the envelope" when they test a new airplane. That pretty well describes what engineers from the Tennessee Department of Transportation (TennDOT) did when they designed and built the new bridge that carries Route 50 over Happy Hollow Creek in Hickman County.

BRIDGES 2000   Roads & Bridges June 2000   Tim Gregorski
Pennsylvania Department of Transportation (PennDOT) has a problem. It has hundreds of bridges and overpasses that need to be inspected every two years, some even more frequently.

Playing it safe with a chopper   Roads & Bridges June 2000   Kevin P. Corbley

INNOVATIONS IN TECHNOLOGY   Roads & Bridges May 2000   William Wright

Pittsburgh is the bridge city in June   Roads & Bridges May 2000   Bill Wilson

FIELD TRIALS   Roads & Bridges April 2000   Tim Gregorski

Taking a crack at it   Roads & Bridges April 2000   Bill Wilson

ROADS REPORT   Roads & Bridges March 2000   David Matthews

BRIDGES 1999   Roads & Bridges December 1999   edited by Tim Gregorski
GNOEC takes anti-skid stance

A Wilson with one important point   Roads & Bridges November 1999   by Bill Wilson
Centered around the idea of ‘V’-shaped piers, the Parsons Transportation Group wins unanimous approval for the design of the second Woodrow Wilson Memorial Bridge

New and improved bridges   Roads & Bridges November 1999   by Tim Gregorski
Inaugural designs and replacements dominate the bridge Class of 1999

A step in the right direction   Roads & Bridges November 1999

A step in the right direction   Roads & Bridges November 1999

An uncommon bridge solution   Roads & Bridges November 1999
Nebraska and Iowa are the first states to incorporate Inverted Tee Girder bridges

Step 1: Assemble quickly   Roads & Bridges November 1999   by Bill Wilson

INNOVATIONS IN TECHNOLOGY   Roads & Bridges October 1999

THE AGGREGATE VIEW   Roads & Bridges October 1999

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.

Bridge over troubled water   Roads & Bridges August 1999   by Bill Wilson
Standing up to the forces of nature, Confederation Bridge wins 1999 George S. Richardson Medal for single, recent outstanding achievement in bridge construction

A fighter for historic bridges   Roads & Bridges August 1999   by Larry Flynn

Crossing many challenges   Roads & Bridges July 1999

Producing rapid results   Roads & Bridges July 1999

BRIDGES 1999   Roads & Bridges June 1999   edited by Tim Gregorski
Bronx-Whitestone Bridge reaps benefits of dehumidification

High and mighty   Roads & Bridges June 1999

A bridge to a new century   Roads & Bridges May 1999   by Larry Flynn

Infrastructure goes under the knife   Roads & Bridges April 1999   by Tim Gregorski

BRIDGES 1999   Roads & Bridges April 1999   Robert L. Schwein
Suspension bridge withstands flood

Century’s top 10 construction projects   Roads & Bridges February 1999

BRIDGES 1998   Roads & Bridges December 1998   edited by Tim Gregorski
L.A. bridge is all bent out of shape

Two of a kind   Roads & Bridges December 1998

New bridge projects span the nation   Roads & Bridges November 1998   by Tim Gregorski
ROADS & BRIDGES reviews new, reconstruction, restoration and seismic retrofit bridge projects taking place throughout the United States

Eight miles high   Roads & Bridges November 1998   by Tim Gregorski

Stress test   Roads & Bridges November 1998

Stealth technology visible in bridges   Roads & Bridges November 1998   by Jerome S. O’Connor, P.E.
New York State DOT demo projects endeavor to find whether fiber-reinforced polymer composites hold promise for repair of bridges; lower labor costs help off set higher initial cost

BRIDGES 1998   Roads & Bridges October 1998
Bridge advances plastic lumber use

Akashi Kaikyo Bridge   Roads & Bridges August 1998   Tim Gregorski
World's longest suspension bridge opens in Japan with aid of advanced bridging technology

The sun never sets on a Man-Chung Tang bridge   Roads & Bridges August 1998    Larry Flynn
The 1998 recipient of the International Bridge Conference's lifetime achievement in bridge engineering, Dr. Man-Chung Tang, has built bridges all over the world, for transportation and for peace

Bridge industry buoyed by TEA-21   Roads & Bridges August 1998   Larry Flynn
This is part of ROADS & BRIDGES' six-part series on TEA-21. Next month the magazine will discuss the act's effects on the asphalt and concrete paving industries.

Bridge to new beginnings   Roads & Bridges August 1998    Jhan Schmitz

BRIDGES 1998   Roads & Bridges June 1998   Ronald Giamario, P.E. and Michael Marks, P.E.
Historic bridge returned to original appearance

Queensborough Bridge rehabilitated to sustain increased traffic   Roads & Bridges May 1998

BRIDGES 1998   Roads & Bridges February 1998
Covered bridges enjoy revised popularity in Buckeye State

To Bridges and Those Who Build Them   Roads & Bridges November 1997   Larry Flynn

Neither Rain nor Snow Stops Renovation   Roads & Bridges October 1997   Elizabeth Notter

University Engineers Improve HP Concrete   Roads & Bridges August 1997   David Banasiak
Engineers at the University of Cincinnati's civil engineering department are ecstatic about what they say are vast improvements in the quality of the cement they're now mixing