Added Protection
The U.S. Bureau of Reclamation is modifying the 335 ft (102 m) high Casitas Dam in Ventura County, California, to withstand a magnitude 6.9 earthquake. The modification includes strengthening...
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...
Safety in a Designer's Hands
Although contractors face safety issues every day, engineers and architects have traditionally not addressed construction site safety in project designs. But there are design practices...
AIR-21
The Aviation Investment and Reform Act for the 21st Century (AIR-21) spans a five year period, reauthorizing the Federal Aviation Administration and the Airport Improvement Program (AIP)....
Into the Tunnel
Technological advances in wind tunnel testing and computer-aided design programs are enabling engineers to create taller and more aesthetically interesting buildings than ever before....
Testing the Load (Available in Geoenvironmental Engineering Special Issue only)
The Pittsburgh District of the U.S. Army Corps of Engineers recently began construction of a new gated dam to replace a nearly 100-year-old concrete fixed-crest dam on the Monongahela...
Dealing with Debris
A comprehensive debris-management plan for the city of Houston will facilitate and coordinate the management of debris removal and disposal following a disaster to mitigate any threat...
Resolving Beach Conflicts in California and Maine
Local communities can measure and project sea level rise (SLR), delimit populations affected by SLR, assess the positions of local stakeholders, and put in place appropriate responses....
Historical Sediment Budget Analysis of the Malibu Coastline
Sediment supply to the Malibu coastline has been continually decreasing since development began in the Santa Monica Mountains in the 1880's due to dam construction for irrigation and recreation,...
Coastal Benefits and Impacts of Dismantling Matilija Dam
A numerical shoreline evolution model was used to examine the shoreline changes associated with the release of 2.3 million cubic meters of beach quality sediment from behind Matilija Dam....
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...
The Digital Evolution
As designers such as Gehry Architects dream up ever-more fluid and sculptural shapes for buildings, the only way to turn those aesthetic shapes into solid, safe structures is by using...
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...
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....
Communicating in a Crisis
As professionals following the strictest ethical standards, civil engineers are entrusted with safety and well-being of the public, regardless of the scale or range of their designs. By...
Safeguarding Los Alamos
A forest fire that burned 48,000 ac (19,500 ha) around the Los Alamos National Laboratory, in New Mexico, in May 2000, created another problem for one of the nation's most...
On the Question of Accepting Work Outside One's Field of Expertise: An Ethical Fail Safe
The winner of the Daniel W. Mead Prize for ethical writing by a student discusses the history of the development of ASCE's code of ethics. Although it may be legal for civil...
Guidelines for Instrumentation and Measurements for Monitoring Dam Performance
Prepared by the Task Committee on Instrumentation and Monitoring Dam Performance of the Hydropower Committee of the Energy Division of ASCE. This report...
Monitoring Construction Vibrations (Available in Geoenvironmental Special Issue only)
A review of procedures, criteria and equipment used to protect buildings and other structures from construction generated vibrations, the article begins by describing the importance of...
Dam Breaching: The Rest of the Story
The U.S. Army Corps of Engineers is evaluating the possibility of breaching four dams on the lower Snake River to improve salmon migration. Because significant infrastructure modifications...
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