Construction and Maintenance
The purpose of this section is to identify construction and maintenance practices that are necessary in order to ensure that the final installation of the guyed structure adheres to the...
Examples
This section includes several examples that illustrate many of the concepts presented in this guide. The examples and load cases have been simplified and may not represent actual design...
Turnback Project Moves Ahead
The $202 million Muni Metro Turnback (MMT) Project, scheduled for completion in September 1996, includes an 840 ft section consisting of twin steel-lined tunnels that connects to the Embarcadero...
Assessing Opal's Impact
Geographic information systems and other high-technology tools were used to quantify the effects of Hurricane Opal in October 1995. The Federal Emergency Management Agency, along with...
Rehab by Helicopter
The City of San Diego's 86-year old Dulzura Conduit has been in almost continuous operation since it first opened in 1909. But by 1984 flow had been reduced to less than 15...
Saving Scotland's Busiest Bridge
The world's most extensive bridge monitoring system has been installed on Glasgow's Kingston Bridge so that the engineers can prevent collapse during a long-term...
Communication Breakdown
Are modern telecommunications networks vulnerable to earthquakes? Researchers say yes, and have developed a computer tool to quantify potential economic impacts. Telecommunications service...
Plumbing the Quality of a Sewer System
Consultants in Phoenix were recently charged with assessing the city's sewer system, many feet of which were laid without plastic lining to protect them. Developing a capital...
Anatomy of a Wetland
The U.S. Army Corps of Engineers, which administers Section 404 of the Clean Water Act, requires replacement of wetlands impacted by construction. A constructed wetland in Georgia demonstrates...
Project Object
Modeling and managing water systems is a notoriously difficult task, one made simpler by PRSYM, a new object-oriented software package created by a consortium of public utilities, government...
Water Wisdom of the Ancients
Two water systems thousands of years old--the falaj system in Oman and China's Dujiangyan water works--are still in use today. A climatologist describes how these systems...
Structural Aerodynamics (Available only in
One of the most strikingly ambitious public buildings in France, county governmental headquarters in Marseille, achieves the status of world-class architecture largely through its structural...
Re-engineering Cowboy Heaven (Available only in
On a wooded hill overlooking the north end of Oklahoma City sits one of the foremost repositories of this country's Western heritage, the National Cowboy Hall of Fame. Contained...
San Francisco Bay's Jeweled Necklace (Available only in
When one looks at a map of San Francisco Bay, three bridges stand out to form a link around the central part of the Bay. At night, it takes little imagination for one to see the lights...
Tunneling Under Pressure
Work will begin this month on the South Bay Ocean Outfall (SBOO) project, a $140 million undertaking to build 3.6 mi of tunneling through the saturated ground of the Pacific Ocean. When...
Small Firms, Big Challenges
Does it pay to be small? Though many small engineering firms find strength in their size, others are hampered by limited resources and a specialization that diminishes their client base....
A Gatehouse for Johnson
Philip Johnson's latest addition to his eclectic collection of architectural designs on his Connecticut property is a radical departure from his famed Glass House. Builders...
Telling Florida's Water Story
The latest addition to the nation's family of aquariums is Tampa's recently completed Florida Aquarium. The $84 million 152,000 square foot cast-in-place concrete...
Rock `N' Roll in Cleveland
A glass tent, a cylinder perched on a single column, a collection of squares, rectangles, triangles and circles were amassed in and around a 167 ft tall tower by architect I.M. Pei to...
Translucent Structural Beacon
In East Los Angeles some 2,000 children, teens and adults are accessing their future inside a building that is as high-tech as the computers they are using to learn. The 40,000 sq ft building...
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