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,...
Case Closed
In June 1993, a massive sinkhole developed in a surface parking lot of a hotel facility in Georgia. The hole was a result of the soil erosion associated with a failed, 4-meter diameter...
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...
Pursuing Past-Due Accounts
Small engineering firms often do not have a full-time staff member dedicated to collecting on past due accounts, yet it is small business that can be most damaged by unpaid bills. Experts...
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...
Where Will We Get Our Future Coastal Engineers?
This summer, the National Research Council's Marine Board issued a report, written by thirteen experts, detailing the importance of coastal engineering for the country, assessing the state...
Measuring Key Physical Processes in a California Lagoon
A focused data collection program was completed in support of a U.S. Army Corps of Engineers feasibility study of restoration alternatives for protecting and managing the habitat in Bolinas...
Application of the Texas A&M University (TAMU) Dredging Cost Model to Long Distance Transport
To develop intelligent decisions about moving sediment long distances to the coast from dams, the cost becomes a major factor. The cost will be a function of many factors including cleaning...
Regional Shoreline Group Session
California's beaches have suffered over the past decade. However to date, very little has been done to address the problem. The Sand Rights 99 conference serves as the venue for addressing...
Damn Sand Rights: Removing Rindge and Matilija Dams
Two dams built in the 1920's and 1940's within southern California coastal drainages have reached the end of their useful lives, and their decommissioning and removal is being actively...
Small Firms Check In
Wireless Warnings
Formwork failures cause dozens of construction-related deaths per year, but most can be avoided by adequate monitoring. The problem is, most monitors must be hard-wired to a computer on...
Towers in Motion (available in Structural Engineering Special Section only)
Undersea towers are typically designed to rigidly resist the forces of water and wind. But one type of tower is designed to be flexible and, rather than rely on its platform strength to...
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...
Effective Analysis of Diaphragm Walls
Prepared by the Technical Committee on Performance of Structures during Construction of the Structural Engineering Institute of ASCE. This report presents...
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...
Sinking a Sewer Line
The design and construction of a sanitary sewer siphon using high density polyethylene (HDPE) pipe in San Juan, Puerto Rico, provided Black & Veatch with a challenging opportunity...
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...
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