U.S. Landmarks: Handle With Care
Landmarks are treated with kid gloves during restoration, but striking a balance between costs and aesthetics is difficult. In addition to structural integrity, original construction methods...
Seattle Swing
The swing bridge has long been out of favor in the U.S. because of the navigational hazard presented by mid-channel pivot piers. A consortium of engineers is updating the design to a state-of-the-art...
Upgrading Antique Sewers
In a $35 million, four-year program, the Massachusetts Water Resources Authority (MWRA) completely restructed the pumping system serving the sewers under East Boston, Chelsea, Revere and...
Bumpy Road Ahead
By 1999, we will be riding on highways and public transit paid for by the 1991 reauthorization of the National Surface Transportation Act. Or maybe we won't. The new bill,...
The New Geotech: Geoenvironmental Engineering
Technical, societal and business forces will continue to dictate the course of professional practice throughout the 1990s. The author's firm, begun in 1965 to practice soil...
A Possible Paradigm
`We work only on a lump sum basis, with work guaranteed on time, and no extras. We help you define the scope of work, using our experience and unmatched computerized databases, then guarantee...
The Demonstration Project on Seismic Loss Estimation for Water Systems
This year a monograph is being produced that summarizes results of a four-year project by the Technical Council on Lifeline Earthquake Engineering (TCLEE) of ASCE in order to demonstrate...
Effects of Uncertainties in Component Fragilities on Lifeline Seismic Risk Analysis
Accurate calculation of the seismic risk for lifelines requires modeling the system as a function of its components, and requires accurate modeling of two engineering factors: (1) the...
Seismic Risk Considerations for Transportation Systems
During the recent Loma Prieta Earthquake, major damage to certain key transportation elements greatly affected operations of major transportation systems within the San Francisco Bay Area....
Present World Situation Concerning Water and Agriculture Output
The supply of water for drinking and industrial purposes and for irrigation is becoming one of the more critical problems in the world and especially in developing countries. It is a topic...
The U.S. Agency for International Development's Water and Sanitation for Health (WASH) Project: Lessons of the Decade
A review of the International Decade of Water Supply and Sanitation of the 1980's shows the enormous accomplishments made to date: 600 million more people served with a drinkable...
The International Drinking Water Supply and Sanitation Decade and Beyond
The International Drinking Water Supply and Sanitation Decade ends in 1990. Though the Decade has not achieved its numerical objective of universal access to water and sanitation, it has...
Extent and Sources of Ground Water Contamination Now in the Nineties
In spite of man's tendency toward grandiose surface-water projects which resist natural forces, along with a political climate which spawns disincentives to conserve and economically...
Ground-Water Management and Aquifer Protection Plan
Just because a water quality problem is not known to exist at the present time does not mean that one may not appear tomorrow or at some other time in the future. Contingency plans should...
Governments' Role Relative to Public and Political Pressures
Groundwater quality is a major concern in the United States today. The body of law pertaining to the protection of groundwater quality is generally inadequate for the implementation of...
Long-Term Water Supply and Demand in Light of California's Population Growth
Californians will have to be more creative, more imaginative, and willing to investigate new methods of meeting people's water needs. Waste water reclamation and water conservation...
Water Management During California's Drought
California is suffering from a fourth consecutive year of drought, and 1990 is shaping up to be the most severe of the four. Water planning in California is usually based upon the experience...
Cooperation: Solving the California Water Problem
The water picture in California is changing rapidly. Water professionals, to say nothing of the public at large, are hard-pressed to keep up with new technical information and changing...
Regulatory Perspective on Ground Water Pollution Cleanup in the Santa Clara Valley
The Santa Clara Valley is located at the southern end of San Francisco Bay and serves as the home of approximately 1.2 million people. Approximately 40% of the Valley's water...
Remediation Technologies in Use for Groundwater and Soil Contamination in the Santa Clara Valley
Silicon Valley is known as the origin and the heart of the high technology (Hitech) industry. However, tech-nologies used for soils and groundwater remediation in the valley are not necessarily...
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