Walled In (Available in Geo-Environmental Special Issue only)
For more than 50 years manufacturing plants adjacent to the northeast bank of a midwestern creek produced asbestos-reinforced construction materials. When manufacturing at the plants ceased...
Keeping It Together
A new framing system for precast concrete columns and beams will allow tall buildings to withstand large earthquakes without damage to the structural integrity of the building. By using...
Box Girder Balancing Act
On November 18, 1999, cranes lowered into place the last of 202 precast concrete segments that form the main span of the new Sagadahoc Bridge, a $46.6 million crossing that boasts the...
Sum of the Parts
As with all of the bay bridges that serve as life lines to the San Francisco peninsula, the 32-year-old San Mateo Bridge needs strengthening to withstand a maximum credible earthquake...
Protecting Your Work: Balancing the Competing Interests of Ownership
Your firm has invested days, months�perhaps even years�in its latest project. Your staff have poured their thoughts, ideas, and insights into the creation of a bridge, building, overpass,...
Branching Out (Available in Structural Engineering Special Issue only)
The Cologne/Bonn Airport in Germany is currently undergoing its biggest construction project to date: a $200 million, five-story addition. Close and productive collaboration between the...
New Bern Bypass
To alleviate congestion and offer tourists easier access to their destinations, the North Carolina Department of Transportation decided to reroute U.S. Route 17 out of the historic town...
Fast-Track Funding
The South Carolina Department of Transportation has implemented one of the most innovative highway and bridge construction programs in the United States. With creative financing and contracting,...
Re-Creating the Rainbow Bridge
A team of American and Chinese experts constructed a pier-free arch bridge in China based only on a 12th century...
High-Performance Hybrid
The Nebraska Department of Roads is taking advantage of the new high-performance steel (HPS) to develop a modular, two-girder bridge that will employ standardized hybrid HPS components,...
Suspension Solution
The new bridge across the Carquinez Strait near San Francisco, California, will upgrade an important transportation link across the Sacramento River. This new bridge, which renders the...
Digging for Answers (Available in Geoenvironmental Engineering Special Issue only)
Research at the six facilities that make up the National Geotechnical Experimentation Sites (NGES) has included tests on minipiles, groups of driven piles, shafts drilled in rock, and...
A New Skew
Most bridges that cross roadways or other elements at a skewed angle are designed based on right-angle crossings with inefficient modifications. A new concept for skewed crossings is a...
Taking a New Approach (available in Structural Engineering Special Section only)
The first bridge rehabilitation project in Washington, DC to use the AASHTO Load and Resistant Factor Design (LRFD) specification reveals several lessons to be learned from using the newly...
Tight Squeeze
The Newark, New Jersey Route 21 Viaduct Replacement is a massive, $250 million highway improvement program being undertaken by the New Jersey Department of Transportation. Michael Baker...
Replacing the East Bay Bridge
The seismically vulnerable East Span of the San Francisco-Oakland Bay Bridge will be replaced with a dual eastbound and westbound, 3.6-km-long structure. The cost of the replacement bridge...
Smart Sign Support
The Route 80-MAGIC (Metropolitan Area Guidance, Information and Control) project is considered to be the showcase Intelligent Transportation System (ITS) project for the state of New Jersey....
IZMIT (Kocaeli), Turkey, Earthquake of August 17, 1999, including Duzce Earthquake of November 12, 1999
Lifeline Performance
Prepared by the Earthquake Investigation Committee of the Technical Council of Lifeline Earthquake Engineering of ASCE. On August 17, 1999, the Izmit...
Toronto's Tunnel Solution (Available in the Geoenvironmental Special Section only)
The Toronto Transit Commission (TTC), one of the largest public transportation systems in North America, carries more than 1,000,000 commuters a day. The TTC's tunnels had...
Saving the Williamsburg Bridge
The Williamsburg Bridge, which has connected Brooklyn to Manhattan for more than 97 years, is midway through an ambitious 14-year, $800-million reconstruction that will save the venerable...
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