Composites Enhance Timber Bridges
Two relatively new technologies are available for reinforcing or strengthening timber bridges with fiber-reinforced polymers (FRPs). The first consists in reinforcing the tension side...
Extended Life Span
The Harlem River Lift Span�part of New York City's Triborough Bridge System�was the largest vertical span in the country at the time of its construction in 1936. The lift...
Good Vibrations
As advances in material technology and structural efficiency find reflection in structures that are lighter, more slender, and more daring architecturally, design teams must focus more...
Cliff-Hanger
To create an arch bridge over a river gorge in Oregon without disturbing the canyon walls or floor below, engineers combined a segmental construction scheme with a temporary cable-stay...
Safeguarding Bixby Bridge
The two-lane arch bridge over Bixby Creek�in Big Sur, California�reflects the Art Deco style popular in the early 1930s, when the crossing was built. Its slender deck and arch ribs appear...
On the New Waterfront
The Hoboken South Waterfront along the Hudson River is being relandscaped to create parks and streets on new and existing deck structures in a joint project of the city of Hoboken, New...
Device Quickly Assesses Concrete Deck Integrity
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...
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...
Opting for FRP Bridge Deck Conserves Time and Money
Brooklyn Bridge Deck Replaced with T-Beams
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...
The Viable Alternative
The Benicia-Martinez Bridge is a high-level, welded deck truss bridge that carries Interstate 680 over the eastern end of the Carquinez Strait near San Francisco. To bring the bridge into...
In Plain View
(Available only in Special Structural Issue) A structural engineer's work is typically hidden beneath layers of concrete and plaster, but the Pittsburgh Civic Center in the...
Investigation of Velocity Patterns under a Bridge Deck in a Pressure Flow Condition
Bridging Substance with Style
Engineers used an elegant form to come up with a functional solution when designing the new Damen Avenue Arch in Chicago. Two steel ribs, created using heat induction bending, closely...
Multiobjective Optimization of Bridge Deck Maintenance
Measured versus Computed Stresses in a Curved Steel Bridge
Top Flange Bracing Systems for Box Girders
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