The Arch Bridge Mystery
For some years, concrete from the Manayunk Bridge�a long-idle, spandrel-arch railroad bridge in Philadelphia�had been spalling toward the streets and river below. While a system of nets...
CSO Controversy
Under the Environmental Protection Agency's (EPA's) national combined sewer overflow (CSO) policy, more than 900 cities will no longer be able to discharge untreated...
Pipeline Safety, Reliability, and Rehabilitation
This proceedings,
Optimizing Post-Earthquake Lifeline System Reliability
This proceedings,
High-Tech Highway
The Virginia Dept. of Transportation has spent more than $30 million on the first 2 miles (3.2 km) of the planned 5.7 mile (9.2 km) Smart Road near Roanoke, Virginia. Eventually the road...
Conquering the Mountain
Interstate 26 will be the largest and most expensive highway project ever undertaken in North Carolina. When completed in 2002, I-26 will provide safe and efficient interstate passage...
GIS Paves the Way
The National Environmental Policy Act (NEPA) of 1969 requires an environmental impact assessment study for all Federal-aid transportation improvement projects. NEPA studies evaluate potential...
Predicting with Precision
In many urban areas flood prediction systems are inadequate. Most rely on networks of widely dispersed rain gauges that often fail to provide sufficient geographic coverage to characterize...
Safe Passage
Past studies have indicated that the existing juvenile fish bypass system at the second powerhouse located at the Corps of Engineers' Bonneville Dam on the Columbia River...
A Race Against Time
The coastal hillsides of San Mateo County, California, were quickly developed during the post WWII construction boom. Although the land is prized for its scenic beauty, the underlying...
Easy Interface
Engineers have long desired to be able to move freely from computer-aided design (CAD) programs to geographic information systems (GIS) and their vast databases. Now, thanks to improvements...
Structural Design for Physical Security
State of the Practice
Prepared by the Task Committee on Structural Design for Physical Security of ASCE. This report provides guidance to structural engineers in the design...
Passage to 2000
On Dec. 31, 1999 the United States turns over ownership and operations of the Panama Canal Commission. In preparation for the handover, the Panama Canal Commission, an independent U.S....
Tracking the Temblor
The earthquake that occurred in Izmit, Turkey, in August 1999�along a fault line that is similar to the San Andreas Fault in Southern California�has provided useful data to researchers...
Learning from Disaster
After each earthquake, civil engineers learn more about what can be done to minimize the damage to infrastructure from seismic events. The recent large earthquakes that struck Izmit, Turkey,...
Topographic Surveying
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 29 This manual includes the new electronic surveying...
Calendar: Bridges 2000 Calendar
Featured bridges are: Mill Creek Park Suspension Bridge (OH); Coos Bay (McCullough Memorial) Bridge (OR); Gothic Arch (NY); Bidwell Bar Suspension Bridge (CA); Plaza de Espana (Spain);...
High-Performance Powder
The application of fundamental principles related to the composition, the making, and the thermal treatment of concrete resulted in the development of a new type of concrete with outstanding...
Defying Gravity
Vacuum sewers, a technology once used only in areas unsuitable for standard gravity sewer systems, are coming into mainstream use in highly developed areas as reliability improves and...
Floodplain Management
On July 28th, 1997, the City of Fort Collins, Colorado, experienced devastating floods on Spring Creek that resulted in property damage and loss of life. As part of the local floodplain...
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