World's Largest Caisson
The world's largest caisson (210,000 cy) forms the offshore cable anchorage for the 1,870 ft main span Tokyo Harbor Bridge. The bridge carries Metropolitan Expressway Route...
Site Assessments
The 1986 Superfund Amendment and Reauthorization Act (SARA) established an innocent purchaser defense applicable if a new owner conducts appropriate inspection and appropriate inquiry...
Let the Buyer Beware
As recently as the 1970s, state highway agencies blindly purchased land for projects without much concern for hazardous waste. But that changed in 1980 with Superfund legislation, specifically...
The Dredging Dilemma
Disposal of dredge materials is becoming a national environmental problem. Disposal sites on land are becoming extremely scarce and environmental objections growing. There are also objections...
Sludge Disposal Dallas Style
Dallas, Tex. has discovered that sludge disposal can coexist with environmental concerns. Dallas Water Utilities treats some 200 million gpd, sending the effluent from one of the two treatment...
No Feet of Clay
The methods of dealing with hazardous waste are evolving. At Superfund sites, for instance, excavation and removal was once the popular choice for treating pollutants, but stabilization...
Siphon Quenches Drought
An age-old engineering concept�the siphon�enjoys new success in alleviating a severe water shortage at the Ketchikan Pulp Company's Ward Cove Pulp Mill. With major layoffs...
More Than a Public Hearing
Too often, required community input is reduced to the sometimes dreaded public hearing. Many formal public-involvement programs are comprised of no more than this minimal, yet essential,...
Yesterday's Swamp
Since the mid-80s there has been an explosion of engineering firms entering the wetlands design and restoration market. As yesterday's bogs and swamps, once drained and filled...
Instrumenting for Eternity (Almost)
Prendergast describes the safety features and instrumentation for a low level radioactive waste disposal facility planned for Illinois. Federal law requires that each state or group of...
Dallas Rediscovers the Trolley
In 1982, a Dallas businessman and a group of trolley enthusiasts formed the Trolley Task Force to restore trolley service along McKinney Avenue in Dallas. Eventually, they established...
Untangling A Can of Worms
Increasing traffic volumes combined with rush-hour delays and commuter complaints have spurred New York State DOT to improve the capacity of a major interchange near Rochester. The interchange,...
Instant Design
The evolution of computer software and automation is clearly changing site analysis and design: The time needed to create plans has been radically reduced, myriad design options can now...
The Fine Print
An engineer who uses software, or supervises those who do, must know the laws regulating its purchase and use. Whether a company contracts for custom software, or leases, licenses or contracts...
Commuting Computing
Portable computers come in many different shapes and sizes and boast many of the same features as desktop machines. Unlike desktop PCs, however, the key to getting the most use out of...
Project Management: Now On-Line
Only 20 years ago, computerized project management was available only to large firms with mainframe computers. Even four or five years back, well into the personal-computer revolution,...
Prospects for International Engineering Practice
International trade is growing in construction products and services. It is stimulated by international efforts to reduce technical barriers to trade and the formation of a single European...
Gateways to Understanding
Automating engineering design processes are crucial to the growth and the very survival of professional services providers. The need to enhance their competitiveness and the value provided...
The Eichleay Formula�Time to Retire?
The Eichleay formula is the one most commonly used to settle claims by contractors against owners who delay a project. The formula is based on six questionable assumptions, however. When...
Recharging Ground Water
For more than 55 years, the Orange County Water District has been responsible for the protection and management of the extensive ground water basin which lies under Orange County, California....
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